A detachable anti-collision beam structure of an integrated die-cast body-in-white
The detachable anti-collision beam structure utilizes L-shaped mounting blocks and locking bolts to achieve quick disassembly and connection between the anti-collision beam and the vehicle body. The insertion and mating of the insert blocks and grooves enable flexible disassembly of the anti-collision beam, solving the problems of long maintenance cycles and high costs associated with traditional anti-collision beams, and improving maintenance convenience and economy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO HAOZHOU FLEXIBLE PROD MFG CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-07-31
AI Technical Summary
Traditional one-piece welded anti-collision beams require cutting the body to replace after a low-speed collision, resulting in long repair cycles, damage to the body structure, reduced strength, and potential thermal damage, failing to meet the requirements of lightweighting and integration.
The system adopts a detachable anti-collision beam structure, which enables quick and detachable connection between the anti-collision beam and the vehicle body through L-shaped mounting blocks and locking bolts. The anti-collision beam can be flexibly disassembled through the interlocking of insert blocks and grooves. The system utilizes buffer pads and reinforcing blocks to improve connection stability and precise positioning.
It enables rapid disassembly and flexible maintenance of the anti-collision beam, shortens the maintenance cycle, reduces costs, maintains structural reliability and connection stability, and improves maintenance convenience and economy.
Smart Images
Figure CN224576587U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of automotive manufacturing technology, and more specifically, to a detachable anti-collision beam structure for an integrated die-cast body-in-white. Background Technology
[0002] With the rapid development of the automotive industry towards lightweighting and integration, aluminum alloy unibody die casting has become the mainstream technology for new energy vehicles and high-end models due to its significant advantages such as reducing the number of parts by more than 30%, increasing production efficiency by 50%, and improving body rigidity by 20%.
[0003] Traditional anti-collision beams are typically connected to the vehicle body using a one-piece welding method. While this type of welded anti-collision beam offers high connection strength, it requires cutting the entire vehicle body for replacement in the event of a low-speed collision. This not only results in a long repair cycle but also damages the structural integrity of the integrated die-cast body, leading to a decrease in body strength. Furthermore, the high temperatures during the cutting and welding process can cause thermal damage to the die-cast aluminum material of the body, resulting in micro-cracks and creating a potential structural fracture hazard during subsequent high-speed collisions. Utility Model Content
[0004] To address the aforementioned issues, this application provides a detachable anti-collision beam structure for an integrated die-cast body-in-white.
[0005] The detachable anti-collision beam structure of the integrated die-cast body-in-white provided in this application adopts the following technical solution: A detachable anti-collision beam structure for an integrated die-cast body-in-white includes a first anti-collision beam, a second anti-collision beam, and mounting seats welded to one side of the body. The number of mounting seats is set to two. A first disassembly assembly is provided between the first and second anti-collision beams and the two mounting seats, and a second disassembly assembly is provided between the first and second anti-collision beams. The first disassembly assembly includes an L-shaped mounting block and multiple first locking bolts. The number of L-shaped mounting blocks is set to two. The two L-shaped mounting blocks are inserted into the corresponding mounting bases and then disassembled by multiple first locking bolts. The second disassembly assembly includes a plug, a groove, and a second locking bolt. The plug and groove are inserted into each other and then disassembled using the second locking bolt.
[0006] Furthermore, both mounting bases have mounting slots inside, and each mounting slot has at least one first threaded hole on both sides.
[0007] Furthermore, two L-shaped mounting blocks are welded to one side of the first and second anti-collision beams, respectively. Each L-shaped mounting block has at least one threaded groove on both sides, and the multiple threaded grooves are arranged in correspondence with the first threaded hole.
[0008] Furthermore, one side of each L-shaped mounting block is inserted into the corresponding mounting slot, and each first locking bolt passes through the corresponding first threaded hole and is threaded into the corresponding threaded groove.
[0009] Furthermore, a cushioning pad is provided on one side of each L-shaped mounting block.
[0010] Furthermore, each L-shaped mounting block has a reinforcing block on one side.
[0011] The above technical solution enables a quick and detachable connection between the anti-collision beam and the vehicle body mounting bracket.
[0012] Furthermore, the insert is welded to one side of the second anti-collision beam, and the groove is opened on one side of the first anti-collision beam, with the insert and the groove interlocking.
[0013] Furthermore, a second threaded hole is provided on one side of both the first and second anti-collision beams. The number of second threaded holes and second locking bolts is set to at least one. Each second locking bolt passes through the insert and the groove in sequence through the corresponding second threaded hole. A lock nut is threadedly connected to one side of each second locking bolt.
[0014] The above technical solution enables the flexible separation of the first and second anti-collision beams.
[0015] In summary, this application includes at least one of the following beneficial technical effects: (1) This utility model can achieve quick and detachable connection between the anti-collision beam and the vehicle body mounting seat through the first disassembly component. When the anti-collision beam needs to be replaced or repaired, only the first locking bolt needs to be removed to pull the L-shaped mounting block out of the mounting slot. There is no need to cut or destructive the vehicle body, which greatly shortens the maintenance cycle and reduces the maintenance cost. At the same time, the L-shaped mounting block and the mounting slot can achieve precise positioning through the insertion and cooperation. With the fastening effect of the first locking bolt, it is ensured that the anti-collision beam is firmly connected to the mounting seat when bearing the collision load. This not only retains the structural reliability of the traditional connection method, but also improves the convenience of vehicle maintenance. (2) This utility model can achieve flexible disassembly of the first anti-collision beam and the second anti-collision beam through the second disassembly component. When one section of the anti-collision beam is partially damaged due to a collision, it is not necessary to replace the entire anti-collision beam assembly. Only the anti-loosening nut and the second locking bolt need to be unscrewed to disassemble and replace the damaged section separately, which greatly reduces maintenance costs and spare parts consumption. At the same time, the insertion and cooperation of the plug and the groove ensures the precise positioning of the connection between the two anti-collision beams. With the double fastening of the second locking bolt and the anti-loosening nut, it can effectively resist the lateral and longitudinal loads when the vehicle is driving or colliding. It not only ensures the stability of the connection, but also solves the drawback of the traditional integrated anti-collision beam that needs to be replaced as a whole when partially damaged, thus improving the flexibility and economy of anti-collision beam maintenance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall connection structure of this utility model; Figure 3 This is a schematic diagram of the overall structure of the first and second anti-collision beams of this utility model; Figure 4 This is a schematic diagram of the connection structure between the first and second anti-collision beams of this utility model; Figure 5 This is a schematic diagram of the overall structure of the mounting base of this utility model.
[0017] Explanation of reference numerals in the attached drawings: 1. First anti-collision beam; 2. Second anti-collision beam; 3. Mounting base; 4. L-shaped mounting block; 5. Mounting slot; 6. Threaded groove; 7. First threaded hole; 8. First locking bolt; 9. Buffer pad; 10. Insert block; 11. Groove; 12. Second threaded hole; 13. Second locking bolt; 14. Anti-loosening nut; 15. Reinforcing block. Detailed Implementation
[0018] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0019] Reference Figures 1-5 A detachable anti-collision beam structure for an integrated die-cast body-in-white includes a first anti-collision beam 1, a second anti-collision beam 2, and a mounting seat 3 welded to one side of the body. The number of mounting seats 3 is set to two. A first disassembly assembly is provided between the first anti-collision beam 1 and the second anti-collision beam 2 and the two mounting seats 3. A second disassembly assembly is provided between the first anti-collision beam 1 and the second anti-collision beam 2. The first disassembly assembly includes an L-shaped mounting block 4 and multiple first locking bolts 8. The number of L-shaped mounting blocks 4 is set to two. The two L-shaped mounting blocks 4 are inserted into the corresponding mounting base 3 and then disassembled by multiple first locking bolts 8. The second disassembly assembly includes a plug 10, a groove 11, and a second locking bolt 13. The plug 10 and the groove 11 are inserted into each other and then disassembled by the second locking bolt 13.
[0020] Reference Figures 1-5Both mounting bases 3 have mounting slots 5 inside, and each mounting slot 5 has at least one first threaded hole 7 on both sides. The two L-shaped mounting blocks 4 are respectively welded to one side of the first anti-collision beam 1 and the second anti-collision beam 2. Each L-shaped mounting block 4 has at least one threaded groove 6 on both sides. The multiple threaded grooves 6 are arranged in correspondence with the first threaded holes 7. One side of each L-shaped mounting block 4 is inserted into the corresponding mounting slot 5. Each first locking bolt 8 passes through the corresponding first threaded hole 7 and is threaded into the corresponding threaded groove 6. Each L-shaped mounting block 4 has a buffer pad 9 on one side and a reinforcing block 15 on one side.
[0021] The entire anti-collision beam can be disassembled using the first disassembly assembly. The specific disassembly method is as follows: First, use the appropriate tool to loosen and remove all the first locking bolts 8 in sequence. Since these first locking bolts 8 pass through the first threaded holes 7 on the mounting base 3 and are threadedly connected to the threaded grooves 6 of the L-shaped mounting block 4, after the first locking bolts 8 are removed, the rigid connection between the mounting base 3 and the L-shaped mounting block 4 is released. At this time, since one side of the L-shaped mounting block 4 was originally tightly inserted into the mounting slot 5 of the mounting base 3, the operator can hold the ends of the first anti-collision beam 1 and the second anti-collision beam 2 and apply appropriate upward force to make the L-shaped mounting block 4 gradually come out along the mounting slot 5. During this process, the reinforcing block 15 on one side of the L-shaped mounting block 4 will move synchronously with the anti-collision beam until the two L-shaped mounting blocks 4 are completely disengaged from the corresponding mounting slots 5. At this time, the first anti-collision beam 1 and the second anti-collision beam 2 are completely separated from the mounting base 3 on the side of the vehicle body through the first disassembly assembly, realizing the complete disassembly of the anti-collision beam from the vehicle body.
[0022] Since the buffer pad 9 is made of rubber, it can fill the tiny gap between the L-shaped mounting block 4 and the mounting slot 5 when they are inserted and mated, thus preventing the metal L-shaped mounting block 4 from directly and rigidly contacting the mounting base 3. This reduces metal friction noise caused by vibration during vehicle operation, reduces wear on the contact surface caused by long-term vibration, and extends the service life of the components. When the vehicle encounters slight bumps or collision impacts, the buffer pad 9 can absorb part of the impact force through its own deformation, playing a buffering and shock-absorbing role and reducing the instantaneous load on the first locking bolt 8 and the threaded connection.
[0023] By setting the reinforcing block 15, it is possible to prevent it from bending or deforming when subjected to collision loads, thus ensuring the stability of the connection between the anti-collision beam and the mounting base 3.
[0024] The first disassembly component enables a quick and detachable connection between the anti-collision beam and the vehicle mounting base 3. When the anti-collision beam needs to be replaced or repaired, only the first locking bolt 8 needs to be removed to pull the L-shaped mounting block 4 out of the mounting slot 5. There is no need to cut or damage the vehicle body, which greatly shortens the maintenance cycle and reduces maintenance costs. At the same time, the L-shaped mounting block 4 and the mounting slot 5 can be precisely positioned through the insertion and engagement. Combined with the tightening effect of the first locking bolt 8, it ensures that the anti-collision beam is firmly connected to the mounting base 3 when bearing collision loads. This retains the structural reliability of the traditional connection method and improves the convenience of vehicle maintenance.
[0025] Reference Figures 1-5 The insert 10 is welded to one side of the second anti-collision beam 2, and the groove 11 is opened on one side of the first anti-collision beam 1. The insert 10 is inserted into the groove 11. The first anti-collision beam 1 and the second anti-collision beam 2 are both provided with a second threaded hole 12 on one side. The number of the second threaded hole 12 and the number of the second locking bolt 13 are both set to at least one. Each second locking bolt 13 passes through the insert 10 and the groove 11 in sequence through the corresponding second threaded hole 12. Each second locking bolt 13 is threaded with an anti-loosening nut 14 on one side.
[0026] The second disassembly assembly enables the disassembly of the first anti-collision beam 1 and the second anti-collision beam 2. The specific operation is as follows: First, use a tool to unscrew the anti-loosening nuts 14 on one side of all the second locking bolts 13 in sequence to release the lock on the second locking bolts 13. Then, continue to use a tool to unscrew the second locking bolts 13 from the second threaded holes 12 on one side of the first anti-collision beam 1 and the second anti-collision beam 2, so that the bolt constraint that originally passed through the insert 10 and the groove 11 is completely released. At this time, since the insert 10 and the groove 11 are only plugged in, the operator can hold the first anti-collision beam 1 and the second anti-collision beam 2 and apply a moderate pulling force in opposite directions to make the insert 10 welded to one side of the second anti-collision beam 2 gradually come out of the groove 11 on the side of the first anti-collision beam 1 until the two are completely separated, thereby realizing the disassembly of the first anti-collision beam 1 and the second anti-collision beam 2, which facilitates the replacement or repair of a certain section of the anti-collision beam.
[0027] The second disassembly assembly enables flexible separation of the first anti-collision beam 1 and the second anti-collision beam 2. When a section of the anti-collision beam (such as the first anti-collision beam 1 or the second anti-collision beam 2) is partially damaged due to a collision, it is not necessary to replace the entire anti-collision beam assembly. Simply unscrew the anti-loosening nut 14 and the second locking bolt 13 to remove the insert 10 from the groove 11, and disassemble and replace the damaged section separately. This significantly reduces maintenance costs and spare parts consumption. At the same time, the insertion and engagement of the insert 10 with the groove 11 ensures the precise positioning of the connection between the two anti-collision beam sections. With the double tightening of the second locking bolt 13 and the anti-loosening nut 14, it can effectively resist the lateral and longitudinal loads during vehicle travel or collision. This not only ensures the stability of the connection but also solves the drawback of the traditional integrated anti-collision beam requiring complete replacement when partially damaged, thus improving the flexibility and economy of anti-collision beam maintenance.
[0028] Working principle: During normal driving, the first anti-collision beam 1 and the second anti-collision beam 2 are firmly connected by the second disassembly component. They are precisely inserted into the groove 11 by the insert block 10. With the double fixation of the second locking bolt 13 and the anti-loosening nut 14, an overall anti-collision structure is formed. At the same time, the two are connected to the vehicle body mounting base 3 by the first disassembly component. The L-shaped mounting block 4 is inserted into the mounting slot 5 and tightened by the first locking bolt 8. The buffer pad 9 reduces vibration and wear, and the reinforcing block 15 improves the connection strength, together resisting the normal load during driving. If the entire anti-collision beam needs to be replaced or repaired, the first disassembly component can be operated, and the first locking bolt 8 can be removed to take the L-shaped mounting block 4 out of the mounting slot 5 without damaging the body. This allows for quick disassembly and assembly, ensuring the structural reliability of the anti-collision beam during normal use and collisions. The two-stage detachable design also meets the needs of different maintenance scenarios, greatly improving the maintenance convenience and economy of the integrated die-cast body-in-white anti-collision beam. When a minor collision causes partial damage to a section of the crash beam, the second disassembly assembly can be operated separately. First, unscrew the first locking bolt 8 on one side of the damaged crash beam (first crash beam 1 or second crash beam 2). Then, remove the anti-loosening nut 14 and the second locking bolt 13. While pulling the insert 10 out of the groove 11, remove the L-shaped mounting block 4 from the mounting slot 5. Only the damaged first crash beam 1 or second crash beam 2 needs to be replaced.
[0029] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A detachable anti-collision beam structure for an integrated die-cast body-in-white, comprising a first anti-collision beam (1), a second anti-collision beam (2), and a mounting base (3) welded to one side of the body, characterized in that, The number of mounting bases (3) is set to two. A first disassembly assembly is provided between the first anti-collision beam (1) and the second anti-collision beam (2) and the two mounting bases (3). A second disassembly assembly is provided between the first anti-collision beam (1) and the second anti-collision beam (2). The first disassembly assembly includes an L-shaped mounting block (4) and a plurality of first locking bolts (8). The number of the L-shaped mounting blocks (4) is set to two. The two L-shaped mounting blocks (4) are inserted into the corresponding mounting base (3) and then disassembled by the plurality of first locking bolts (8). The second disassembly assembly includes a plug (10), a groove (11), and a second locking bolt (13), wherein the plug (10) and the groove (11) are inserted and then disassembled by the second locking bolt (13).
2. The one-piece integrated die cast body-in-white detachable beam structure of claim 1, wherein: Both mounting bases (3) have mounting slots (5) inside, and each mounting slot (5) has at least one first threaded hole (7) on both sides.
3. The one-piece integrated white body castable crash beam structure of claim 1, wherein: The two L-shaped mounting blocks (4) are respectively welded to one side of the first anti-collision beam (1) and the second anti-collision beam (2). Each L-shaped mounting block (4) has at least one threaded groove (6) on both sides, and the multiple threaded grooves (6) are correspondingly arranged with the first threaded hole (7).
4. The one-piece integrated white body castable crash beam structure of claim 1, wherein: One side of each L-shaped mounting block (4) is inserted into the corresponding mounting slot (5), and each of the first locking bolts (8) passes through the corresponding first threaded hole (7) and is threaded into the corresponding threaded groove (6).
5. The one-piece integrated white body castable crash beam structure of claim 1, wherein: Each of the L-shaped mounting blocks (4) has a buffer pad (9) on one side.
6. The one-piece integrated white body castable crash beam structure of claim 1, wherein: Each of the L-shaped mounting blocks (4) has a reinforcing block (15) on one side.
7. The one-piece integrated die cast body in white crash management beam structure of claim 1, wherein: The insert (10) is welded to one side of the second anti-collision beam (2), and the groove (11) is opened on one side of the first anti-collision beam (1). The insert (10) is inserted into the groove (11).
8. The one-piece integrated white body castable crash beam structure of claim 1, wherein: The first anti-collision beam (1) and the second anti-collision beam (2) are provided with a second threaded hole (12) on one side. The number of the second threaded hole (12) and the number of the second locking bolt (13) are both set to at least one. Each second locking bolt (13) passes through the corresponding second threaded hole (12) in sequence through the insert (10) and the groove (11). Each second locking bolt (13) is threaded with a lock nut (14) on one side.