Tubular beam structure suitable for vehicle width expansion

Abstract

The utility model relates to the technical field of vehicle manufacturing, and discloses a tubular beam structure suitable for vehicle width expansion, which comprises a cross beam, an expansion beam is arranged on one side of the cross beam far away from each other, a connecting plate is arranged on one side of the expansion beam far away from each other, and hollow blocks are fixedly connected to one side of the cross beam and one side of the expansion beam far away from each other. A welding block is slidably connected to the inner wall of the hollow block, clamping grooves are formed in the adjacent sides of the expansion beam and the cross beam, hollow pipes are slidably connected to the inner walls of the clamping grooves, a first reinforcing plate is fixedly connected to the top of each hollow pipe, a clamping pipe is slidably connected to the inner wall of each hollow pipe, and a second reinforcing plate is fixedly connected to the bottom of each clamping pipe. According to the utility model, after the welding blocks and the expansion beams as well as the expansion beams and the cross beams are connected through clamping of the hollow blocks and the welding blocks, the purpose of adapting to vehicle width expansion is achieved, the production efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of vehicle manufacturing technology, and in particular to a tubular beam structure that adapts to the expansion of vehicle width. Background Technology

[0002] The tubular beam structure of a vehicle, also known as the frame beam or frame tubular beam, is a key component of the modern automobile body structure. It is characterized by being made of high-strength steel, aluminum alloy, and stainless steel, which gives the structure good strength, rigidity, and corrosion resistance. It also includes one or more C-shaped and U-shaped tubular members. These members, through specific geometry and layout, provide good structural strength and rigidity, providing necessary support for the vehicle body and ensuring the stability and rigidity of the vehicle body during driving. In the event of a collision, the tubular beam structure can absorb and disperse impact forces, protecting the safety of passengers inside the vehicle. The tubular beam structure can also be subdivided into various structures.

[0003] Tubular beam structures can be divided into longitudinal beams located at the front and rear of the vehicle, running longitudinally through the entire body; tubular beams located on the sides of the body, connecting laterally to the longitudinal beams; and crossbeams that increase the lateral rigidity of the body. With increasing environmental protection and energy conservation requirements, vehicle tubular beam structures are developing towards lighter weight. Therefore, existing vehicle tubular beam structures are beginning to utilize integrated die casting technology for manufacturing. This technology can integrate multiple components into a large casting, thereby achieving weight reduction, increased strength, and simplified assembly. At the same time, integrated die-cast tubular beam structures can provide strength and rigidity comparable to or even higher than welded structures. However, integrated die-cast tubular beam structures require the manufacture of corresponding molds. When it is necessary to expand the body, new molds need to be manufactured, leading to increased production costs and reduced production efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a tubular beam structure that adapts to vehicle width expansion, aiming to improve the problem that the existing one-piece die-cast tubular beam structure requires the manufacture of new molds when the vehicle body needs to be expanded, resulting in increased production costs and reduced production efficiency.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a tubular beam structure adaptable to vehicle width expansion, including a crossbeam, an expansion beam provided on the opposite side of the crossbeam, a connecting plate provided on the opposite side of the expansion beam, hollow blocks fixedly connected to the opposite sides of both the crossbeam and the expansion beam, welding blocks slidably connected to the inner walls of the hollow blocks, slots provided on adjacent sides of both the expansion beam and the crossbeam, hollow tubes slidably connected to the inner walls of the slots, a first reinforcing plate fixedly connected to the top of the hollow tube, a clamping tube slidably connected to the inner wall of the hollow tube, a second reinforcing plate fixedly connected to the bottom of the clamping tube, multiple screws threadedly connected to the inner wall of the first reinforcing plate, and a crumple mechanism fixedly connected to the front side of the connecting plate, the crumple mechanism being used for better energy absorption during a collision.

[0006] As a further description of the above technical solution:

[0007] The collapse mechanism includes a hollow beam, the rear side of which is fixedly connected to the front side of a connecting plate. A groove is provided on the inner wall of the hollow beam, and a connecting block is slidably connected to the inner wall of the groove. A collapse box is fixedly connected to the middle of the inner wall of the groove. A limit plate is fixedly connected to the outer wall of the connecting block. A connecting beam is fixedly connected between adjacent connecting blocks. A screw is threadedly connected to the inner wall of the collapse box.

[0008] As a further description of the above technical solution:

[0009] Multiple energy-absorbing boxes are fixedly connected to the front side of the connecting beam, and all of the multiple energy-absorbing boxes are fixedly connected at the same horizontal height.

[0010] As a further description of the above technical solution:

[0011] A washer 2 is provided on the outer wall of the screw 1, and the inner wall of the washer 2 is slidably connected to the outer wall of the screw 1.

[0012] As a further description of the above technical solution:

[0013] A second connecting block is fixedly connected to the rear side of the connecting plate, and a longitudinal beam is fixedly connected to the rear side of the second connecting block.

[0014] As a further description of the above technical solution:

[0015] The inner wall of the longitudinal beam is provided with multiple connecting grooves, all of which are located at the same horizontal height.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the screw two is provided with a washer one, and the inner wall of the washer one is slidably connected to the outer wall of the screw two.

[0018] As a further description of the above technical solution:

[0019] The inner wall of the connecting plate is provided with a second groove, and the inner wall of the extension beam and the crossbeam are both provided with a first groove in the middle.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, after connecting the welding block and the extension beam, as well as the extension beam and the crossbeam, through the engagement of the hollow block and the welding block, the joint is welded. Then, the hollow tube is inserted into the corresponding slot at the joint between the crossbeam and the extension beam, and then the clamping tube is inserted into the hollow tube. Finally, the screw is screwed into the reinforcing plate to complete the installation. This achieves the purpose of adapting to the vehicle width expansion, speeds up production efficiency, and reduces production costs.

[0022] 2. In this utility model, the energy-absorbing box absorbs energy initially through impact, and then the connecting beam drives the connecting block to squeeze the collapse box for secondary energy absorption. When the energy absorption capacity of the collapse box is exceeded, it collapses, allowing the connecting block to slide along the groove, thereby achieving secondary buffer energy absorption. This achieves the purpose of multiple collapse energy absorption, improving safety and practicality. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a tubular beam structure adapted to vehicle width expansion proposed in this utility model;

[0024] Figure 2 This is a side view of a tubular beam structure adapted to vehicle width expansion proposed in this utility model;

[0025] Figure 3 This is a top view of a tubular beam structure adapted to vehicle width expansion proposed in this utility model;

[0026] Figure 4 This is a partial structural breakdown diagram of a hollow tube with a tube beam structure adapted to vehicle width expansion proposed in this utility model;

[0027] Figure 5 This is a partial structural breakdown diagram of the expansion beam of a tubular beam structure adapted to vehicle width expansion proposed in this utility model.

[0028] Legend:

[0029] 1. Crossbeam; 2. Collapse mechanism; 201. Hollow beam; 202. Connecting block one; 203. Connecting beam; 204. Screw one; 205. Slide groove; 206. Limiting plate; 207. Collapse box; 3. Expansion beam; 4. Slot; 5. Connecting plate; 6. Hollow block; 7. Hollow tube; 8. Reinforcing plate one; 9. Screw two; 10. Pipe clamp; 11. Reinforcing plate two; 12. Welding block; 13. Groove one; 14. Gasket one; 15. Connecting block two; 16. Connecting groove; 17. Longitudinal beam; 18. Groove two; 19. Gasket two; 20. Energy-absorbing box. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a tubular beam structure adapted to vehicle width expansion, including a crossbeam 1, an extension beam 3 disposed on the opposite side of the crossbeam 1, the crossbeam 1 being used to laterally support the vehicle body, a connecting plate 5 disposed on the opposite side of the extension beam 3, hollow blocks 6 being fixedly connected to the opposite sides of both the crossbeam 1 and the extension beam 3, the extension beam 3 being used to widen and extend the crossbeam 1, a welding block 12 being slidably connected to the inner wall of the hollow block 6, and slots 4 being provided on adjacent sides of both the extension beam 3 and the crossbeam 1, the welding block 12 being able to engage with the inner wall of the hollow block 6. After the engagement is completed, welding is performed. A hollow tube 7 is slidably connected to the inner wall of the slot 4. A reinforcing plate 8 is fixedly connected to the top of the hollow tube 7. A clamping tube 10 is slidably connected to the inner wall of the hollow tube 7. The hollow tube 7 can guide the clamping tube 10 to be inserted into it. A reinforcing plate 11 is fixedly connected to the bottom of the clamping tube 10. Multiple screws 9 are threadedly connected to the inner wall of the reinforcing plate 8. A collapse mechanism 2 is fixedly connected to the front side of the connecting plate 5. The collapse mechanism 2 is used to better absorb energy during collision. Both the reinforcing plate 8 and the reinforcing plate 11 are used to strengthen the entire structure.

[0032] Specifically, the extension beam 3 can add extra width space to the vehicle when the vehicle width needs to be extended. The connecting plate 5 connects the extension beam 3 to other related components of the vehicle, ensuring that the entire width extension structure works in coordination with the overall vehicle structure. The welding block 12 can slide inside the hollow block 6. After installation, the two are welded and fixed, thereby enabling the installation and removal of the extension beam 3. The reinforcing plate 2 11 and the reinforcing plate 1 8 complement each other and work together at the joint between the extension beam 3 and the crossbeam 1, thereby enhancing the structural strength and reliability of this part.

[0033] Please see the appendix Figure 3 - Appendix Figure 5 The collapse mechanism 2 includes a hollow beam 201. The rear side of the hollow beam 201 is fixedly connected to the front side of the connecting plate 5. A groove 205 is provided on the inner wall of the hollow beam 201. The hollow structure of the hollow beam 201 can absorb a certain amount of energy. A connecting block 202 is slidably connected to the inner wall of the groove 205. A collapse box 207 is fixedly connected to the middle of the inner wall of the groove 205. The collapse box 207 is used to collapse and absorb energy after being impacted. A limit plate 206 is fixedly connected to the outer wall of the connecting block 202. A connecting beam 203 is fixedly connected between adjacent connecting blocks 202. A screw 204 is threadedly connected to the inner wall of the collapse box 207. The limit plate 206 is used to limit the position of the connecting block 202.

[0034] Specifically, the limiting plate 206 is used to limit the left and right movement of the connecting block 202 to prevent it from deviating from the predetermined movement range, which would cause the entire structure to fail and detach. The connecting beam 203 can effectively transmit and disperse the impact force received by each connecting block 202, so that the entire collapse mechanism 2 can absorb collision energy more evenly and improve energy absorption efficiency. The collapse box 207 will be subjected to the impact force transmitted from the connecting block 202 and the connecting beam 203. Under the action of the impact force, its thin-walled part will undergo plastic deformation, folding and fracture, thereby absorbing energy.

[0035] Please see the appendix Figure 2 - Appendix Figure 4 Screw 204 has a washer 19 on its outer wall. The inner wall of washer 19 is slidably connected to the outer wall of screw 204. The washer 19 is used to increase the friction and contact area between screw 204 and the connection. Multiple energy-absorbing boxes 20 are fixedly connected to the front side of the connecting beam 203. The multiple energy-absorbing boxes 20 are all fixedly connected to the same horizontal height. Screw 29 has a washer 14 on its outer wall. The inner wall of washer 14 is slidably connected to the outer wall of screw 29. The energy-absorbing box 20 can absorb the initial impact.

[0036] Specifically, the energy-absorbing box 20 at the same level ensures that it can evenly bear the impact force during a vehicle collision. When subjected to external impact, it can absorb and disperse the impact energy through internal collapse and deformation. The gasket 14 can act as a buffer between the screw 29 and the reinforcing plate 8. During vehicle operation, it absorbs some of the vibration energy and reduces the possibility of the screw 29 loosening due to vibration.

[0037] Please see the appendix Figure 3 - Appendix Figure 5The inner wall of the longitudinal beam 17 is provided with multiple connecting grooves 16, all of which are at the same horizontal height. The connecting grooves 16 are used to connect the longitudinal beam 17 and the rest of the structure. The inner wall of the connecting plate 5 is provided with a second groove 18. The middle of the inner wall of the extension beam 3 and the cross beam 1 is provided with a first groove 13. Both the second groove 18 and the first groove 13 are used to reduce weight. The rear side of the connecting plate 5 is fixedly connected to the second connecting block 15, and the rear side of the second connecting block 15 is fixedly connected to the longitudinal beam 17. The longitudinal beam 17 is used to longitudinally support the vehicle body.

[0038] Specifically, the first slot 13 helps to reduce the weight of the extension beam 3 when expanding the vehicle width, without reducing its structural strength under load. The first slot 13 can adjust the stress distribution inside the crossbeam 1 and improve its stability when bearing vertical and horizontal loads. The second connecting block 15 can compensate for the differences in shape and size between the connecting plate 5 and the longitudinal beam 17.

[0039] Working principle: When it is necessary to extend the vehicle width, the welding block 12 at the extension beam 3 is inserted into the corresponding hollow block 6 fixed at the cross beam 1. Then, the welding block 12 fixed at the connecting plate 5 is inserted into the hollow block 6 fixed at the extension beam 3. Welding is then performed. The hollow tube 7 with the reinforcing plate 8 is then inserted into the corresponding slot 4 at the joint between the cross beam 1 and the extension beam 3. Then, the clamp tube 10 with the reinforcing plate 11 is inserted into the hollow tube 7. Finally, the screw 9 is turned to fix the hollow tube 7 and the clamp tube 10, thereby providing reinforcement.

[0040] When a frontal collision occurs, the connecting beam 203 is impacted first. After the energy-absorbing box 20 absorbs energy, the excess impact is dispersed by the connecting beam 203 to the crumple box 207, which is squeezed and absorbs energy to crumple. When the impact exceeds the capacity of the crumple box 207, the connecting block 202 will slide along the groove 205 to absorb energy and buffer again.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tubular beam structure adaptable to vehicle width expansion, comprising a crossbeam (1), characterized in that: An extension beam (3) is provided on the opposite side of the crossbeam (1), and a connecting plate (5) is provided on the opposite side of the extension beam (3). Hollow blocks (6) are fixedly connected to the opposite sides of both the crossbeam (1) and the extension beam (3). Welded blocks (12) are slidably connected to the inner wall of the hollow blocks (6). Slots (4) are provided on the adjacent sides of both the extension beam (3) and the crossbeam (1). Hollow tubes (7) are slidably connected to the inner wall of the slots (4). A first reinforcing plate (8) is fixedly connected to the top of the hollow tube (7). A clamping tube (10) is slidably connected to the inner wall of the hollow tube (7). A second reinforcing plate (11) is fixedly connected to the bottom of the clamping tube (10). Multiple screws (9) are threadedly connected to the inner wall of the first reinforcing plate (8). A collapse mechanism (2) is fixedly connected to the front side of the connecting plate (5). The collapse mechanism (2) is used to better absorb energy during a collision.

2. The tubular beam structure adaptable to vehicle width expansion according to claim 1, characterized in that: The collapse mechanism (2) includes a hollow beam (201), the rear side of which is fixedly connected to the front side of the connecting plate (5). The inner wall of the hollow beam (201) is provided with a groove (205), and a connecting block (202) is slidably connected to the inner wall of the groove (205). A collapse box (207) is fixedly connected to the middle of the inner wall of the groove (205). A limit plate (206) is fixedly connected to the outer wall of the connecting block (202). A connecting beam (203) is fixedly connected between adjacent connecting blocks (202). A screw (204) is threadedly connected to the inner wall of the collapse box (207).

3. The tubular beam structure adaptable to vehicle width expansion according to claim 2, characterized in that: Multiple energy-absorbing boxes (20) are fixedly connected to the front side of the connecting beam (203), and all of the multiple energy-absorbing boxes (20) are fixedly connected at the same horizontal height.

4. A tubular beam structure adaptable to vehicle width expansion according to claim 2, characterized in that: The outer wall of the screw (204) is provided with a washer (19), and the inner wall of the washer (19) is slidably connected to the outer wall of the screw (204).

5. A tubular beam structure adaptable to vehicle width expansion according to claim 1, characterized in that: The rear side of the connecting plate (5) is fixedly connected to the connecting block two (15), and the rear side of the connecting block two (15) is fixedly connected to the longitudinal beam (17).

6. A tubular beam structure adaptable to vehicle width expansion according to claim 5, characterized in that: The inner wall of the longitudinal beam (17) is provided with multiple connecting grooves (16), and all of the multiple connecting grooves (16) are opened at the same horizontal height.

7. A tubular beam structure adaptable to vehicle width expansion according to claim 1, characterized in that: The outer wall of the screw two (9) is provided with a washer one (14), and the inner wall of the washer one (14) is slidably connected to the outer wall of the screw two (9).

8. A tubular beam structure adaptable to vehicle width expansion according to claim 1, characterized in that: The inner wall of the connecting plate (5) is provided with a second groove (18), and the middle of the inner wall of the extension beam (3) and the crossbeam (1) is provided with a first groove (13).

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