Rear floor beam connecting piece

Abstract

The utility model discloses a rear floor cross beam connecting piece which comprises rear longitudinal beams, a cross beam connecting mechanism is arranged between the rear longitudinal beams on the two sides, the cross beam connecting mechanism comprises a rear cross beam body, an installation groove is formed in the upper side of the rear cross beam body, a rear floor is arranged in the installation groove, and connecting pieces are arranged at the two ends of the rear cross beam body. The connecting pieces and the rear cross beam body are integrally designed, reinforcing ribs are arranged in the rear cross beam body, and the connecting pieces on the two sides are arranged in a bent arc shape. Fixing blocks are welded to the portions, located on the two sides of the connecting piece, of the rear cross beam body, first mounting holes are formed in the two sides of the rear longitudinal beam, and second mounting holes are formed in the portions, located on the outer side of the rear longitudinal beam, of the connecting piece. By means of the structure, the problems that the number of welding stations is large, a large number of devices such as welding dies, clamps and checking tools are needed, and the manufacturing cost is high are solved.

Description

Technical Field

[0001] This utility model relates to the field of vehicle body structure technology, and in particular to a rear floor crossbeam connector. Background Technology

[0002] As an important component of the car body, the rear floor frame has a significant impact on the vehicle's performance. The rear subframe, rear trailing arms, rear shock absorbers, and rear shock absorber springs of the car chassis are basically located on the rear floor frame. The strength and rigidity of the rear floor frame structure directly affect the vehicle's NVH (Noise, Vibration, Harshness) performance and durability.

[0003] In existing technologies, automotive rear floor frames are typically welded from multiple stamped parts using processes such as spot welding or CO2 shielded welding. Due to the large number of parts in the automotive rear floor structure, welded automotive rear floor structures suffer from problems such as deep weld layers, large cumulative tolerances, low installation accuracy, and insufficient rigidity at mounting points. In addition, welded automotive rear floor frame structures also have many welding stations, require a large number of welding molds, fixtures, and inspection tools, resulting in high manufacturing costs. Therefore, a rear floor crossbeam connector is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a rear floor beam connector that solves the problems of multiple welding stations, numerous welding molds, fixtures, inspection tools, and other equipment required, resulting in high manufacturing costs.

[0005] To achieve the above objectives, a rear floor crossbeam connector is provided, including a rear longitudinal beam, and a crossbeam connecting mechanism is provided between the two rear longitudinal beams. The crossbeam connecting mechanism includes a rear crossbeam body, an installation groove is provided on the upper side of the rear crossbeam body, a rear floor is provided in the installation groove, and connectors are provided at both ends of the rear crossbeam body. The connectors and the rear crossbeam body are integrally designed. The rear crossbeam body is provided with reinforcing ribs, and the connectors on both sides are bent into an arc shape.

[0006] Fixing blocks are welded to the main body of the rear crossbeam located on both sides of the connector. The rear longitudinal beam has a first mounting hole on both sides and a second mounting hole on the connector located on the outer side of the rear longitudinal beam.

[0007] According to the aforementioned rear floor crossbeam connector, there are two rear crossbeam bodies arranged parallel to each other, the rear floor is U-shaped, and both the front and rear ends are provided with third mounting holes.

[0008] According to the aforementioned rear floor beam connector, self-tapping screws are provided in the third mounting holes located at both ends of the rear floor.

[0009] According to the aforementioned rear floor beam connector, the first mounting hole on the outer side is in the same position as the second mounting hole, and the first mounting hole on the inner side is in the same position as the fixing block.

[0010] According to the aforementioned rear floor beam connector, the first and second mounting holes on the outer side and the first mounting hole on the inner side are all threadedly connected to the fixing block with fixing bolts.

[0011] According to the aforementioned rear floor beam connector, a rubber pad is fixedly connected to the inner side of the connector.

[0012] This utility model has the following beneficial effects:

[0013] 1. Compared with the existing technology, by providing connectors on both sides of the rear crossbeam body, and the connectors being U-shaped, it can better contact the rear crossbeam body. Moreover, during operation, installation can be completed using only fixing bolts and self-tapping screws, avoiding multiple welding operations, making operation convenient and reducing costs.

[0014] 2. Compared with existing technologies, the structural stability is better by integrating the connector with the main body of the rear crossbeam. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0016] Figure 1 This is a structural diagram of a rear floor beam connector according to the present invention;

[0017] Figure 2 This is a partial structural diagram of a rear floor beam connector according to the present invention;

[0018] Figure 3 This is a structural diagram of the beam connection mechanism of a rear floor beam connector according to the present invention;

[0019] Figure 4 This is a structural diagram of the main body of the rear crossbeam of a rear floor crossbeam connector according to the present invention;

[0020] Figure 5 This is a structural diagram of the rear floor of a rear floor crossbeam connector according to the present invention.

[0021] Legend:

[0022] 1. Rear longitudinal beam; 11. First mounting hole; 2. Crossbeam connecting mechanism; 21. Rear crossbeam body; 22. Connector; 23. Mounting groove; 24. Reinforcing rib; 25. Fixing block; 26. Rubber pad; 27. Second mounting hole; 3. Rear floor; 31. Third mounting hole; 4. Fixing bolt; 5. Self-tapping screw. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] Reference Figures 1-5 This utility model embodiment provides a rear floor crossbeam connector, which includes a rear longitudinal beam 1 and a crossbeam connecting mechanism 2 between the two rear longitudinal beams 1. The crossbeam connecting mechanism 2 includes a rear crossbeam body 21, and an installation groove 23 is provided on the upper side of the rear crossbeam body 21. A rear floor 3 is provided in the installation groove 23. There are two rear crossbeam bodies 21, which are arranged parallel to each other. The rear floor 3 is U-shaped and has a third installation hole 31 at both the front and rear ends. Self-tapping screws 5 are provided in the third installation holes 31 at both ends of the rear floor 3. During installation, the rear floor 3 can be fixed in the installation groove 23 by the self-tapping screws 5.

[0025] Both ends of the rear crossbeam body 21 are provided with connectors 22. Rubber pads 26 are fixedly connected to the inner side of the connectors 22. Under the action of the rubber pads 26, the connectors 22 can better contact the rear longitudinal beam 1, while avoiding collision between the connectors 22 and the rear longitudinal beam 1, thus ensuring good safety. The connectors 22 and the rear crossbeam body 21 are designed as a single unit. The rear crossbeam body 21 is provided with reinforcing ribs 24 to improve its structural stability. The connectors 22 on both sides are bent into an arc shape. The side of the connectors 22 closest to the rear crossbeam body 21 is welded to both ends of the rear crossbeam body 21. The sides of the connectors 22 closest to the fixing blocks 25 are welded to the fixing blocks 25 to improve the stability between the connectors 22 and the rear crossbeam body 21.

[0026] Fixing blocks 25 are welded to the rear crossbeam body 21 on both sides of the connector 22. The rear longitudinal beam 1 has first mounting holes 11 on both sides. The connector 22 on the outer side of the rear longitudinal beam 1 has second mounting holes 27. The outer first mounting holes 11 and second mounting holes 27 are in the same position. The inner first mounting holes 11 and fixing blocks 25 are in the same position. Fixing bolts 4 are threadedly connected to the outer first mounting holes 11 and second mounting holes 27 and the inner first mounting holes 11 and fixing blocks 25. During installation, installation can be completed by using only fixing bolts 4 and self-tapping screws 5, avoiding multiple welding, making operation convenient and reducing costs.

[0027] Working principle: During installation, the rear crossbeam body 21 is installed on the rear longitudinal beam 1 through the connector 22. Then, the connector 22 is fixed to the rear longitudinal beam 1 through the fixing bolts 4, the first mounting hole 11, the second mounting hole 27, and the fixing block 25. Then, the rear floor 3 is fixed to the rear crossbeam body 21 through the self-tapping screws 5. During the operation, the installation can be completed by only the fixing bolts 4 and the self-tapping screws 5, avoiding multiple welding, making the operation convenient and reducing costs. At the same time, the rubber pad 26 prevents the connector 22 from colliding with the rear longitudinal beam 1, ensuring good safety. Furthermore, the connector 22 and the rear crossbeam body 21 are designed as an integral piece, which makes its structural stability better.

[0028] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A rear floor beam connector, characterized in that, Includes a rear longitudinal beam (1), and a crossbeam connecting mechanism (2) is provided between the two rear longitudinal beams (1). The crossbeam connecting mechanism (2) includes a rear crossbeam body (21). The upper side of the rear crossbeam body (21) is provided with an installation groove (23). The installation groove (23) is provided with a rear floor (3). Both ends of the rear crossbeam body (21) are provided with connectors (22). The connectors (22) and the rear crossbeam body (21) are designed as an integral unit. The rear crossbeam body (21) is provided with reinforcing ribs (24). The connectors (22) on both sides are bent into an arc shape. Fixing blocks (25) are welded on the rear crossbeam body (21) located on both sides of the connector (22). The rear longitudinal beam (1) has a first mounting hole (11) on both sides. The connector (22) located on the outside of the rear longitudinal beam (1) has a second mounting hole (27).

2. The rear floor beam connector according to claim 1, characterized in that, There are two rear crossbeam bodies (21), which are arranged in parallel to each other. The rear floor (3) is U-shaped and has a third mounting hole (31) at both the front and rear ends.

3. A rear floor beam connector according to claim 2, characterized in that, Self-tapping screws (5) are provided in the third mounting holes (31) located at both ends of the rear floor (3).

4. A rear floor beam connector according to claim 3, characterized in that, The first mounting hole (11) on the outer side is in the same position as the second mounting hole (27), and the first mounting hole (11) on the inner side is in the same position as the fixing block (25).

5. A rear floor beam connector according to claim 4, characterized in that, The first mounting hole (11) on the outer side and the second mounting hole (27) and the first mounting hole (11) on the inner side and the fixing block (25) are all threaded with fixing bolts (4).

6. A rear floor beam connector according to claim 5, characterized in that, A rubber pad (26) is fixedly connected to the inner side of the connector (22).

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