A cellular reinforced front bumper lower beam assembly

Abstract

The utility model relates to the front bumper guard board field, concretely is a kind of honeycomb reinforced front bumper lower guard board assembly, including front bumper body and lower guard board body, the side of the front bumper body towards lower guard board body is connected with multiple limit cylinders, the top of the lower guard board body is provided with multiple reinforcing ribs, the side of the reinforcing rib towards front bumper body is connected with the plug-in rod compatible with limit cylinder, and limit assembly includes multiple elastic barbs, the outer surface of the limit cylinder is provided with multiple limit grooves arranged in linear array, this honeycomb reinforced front bumper lower guard board assembly, by setting elastic barb on the external plug-in rod of reinforcing rib on lower guard board body, and the external limit groove of limit cylinder is opened on front bumper body, so that elastic barb is clamped in the external limit groove, when front bumper body is impacted, plug-in rod is limited by elastic barb, avoid plug-in rod from the internal limit cylinder to separate, thereby the strength of lower guard board body is improved, and the possibility of lower guard board body warping is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of front bumper guard plates, specifically a honeycomb reinforced front bumper lower guard plate assembly. Background Technology

[0002] A car bumper is a safety device that absorbs and mitigates external impacts and protects the front and rear of the vehicle. A bumper consists of three parts: an outer panel, a buffer material, and a crossbeam. Car bumpers are also divided into front bumpers and rear bumpers, with the front bumper requiring a lower guard plate.

[0003] A search revealed a Chinese patent (CN216424331U) disclosing a high-strength front bumper lower guard plate, comprising a bumper body and a lower guard plate. The lower guard plate is disposed inside the bumper body, and a reinforcement mechanism is provided between the inner wall of the bumper body and the top of the lower guard plate. A scratch-resistant plate is fixedly connected to the bottom of the lower guard plate, and the bottom of the scratch-resistant plate contacts the bottom of the inner wall of the bumper body. By placing two connecting plates between two L-shaped plates and sliding them together, the lower guard plate is pushed into the bottom of the center plate and two reinforcing pressure plates. Simultaneously, multiple inserts are inserted into multiple limiting holes, and six fixing bolts are turned into the space between the two reinforcing pressure plates and the lower guard plate to fix the lower guard plate. Multiple reinforcing ribs are connected to the center plate through multiple inserts, making the lower guard plate installation more stable and preventing it from warping when impacted, thus improving the strength of the lower guard plate.

[0004] In the aforementioned patented technology, the reinforcing rib is inserted into the limiting hole of the center plate via a plug rod, which can prevent the lower guard plate from warping when it is impacted. However, in actual use, when the reinforcing rib is connected to the limiting hole of the center plate via a plug rod, the plug rod is easy to come out of the limiting hole when the vehicle is involved in a collision or violent vibration. This causes the reinforcing rib to lose its supporting function for the lower guard plate, and the impact resistance of the lower guard plate is greatly reduced. It may still cause the lower guard plate to warp. Therefore, we propose a honeycomb reinforced front bumper lower guard plate assembly. Utility Model Content

[0005] The technical problem to be solved by this application is that when the reinforcing rib is connected to the limiting hole of the center plate by the insert rod, the insert rod is easy to come out of the limiting hole when the vehicle is involved in a collision or violent vibration, causing the reinforcing rib to lose its supporting function for the lower guard plate, the impact resistance of the lower guard plate is greatly reduced, and the problem of the lower guard plate lifting may still occur.

[0006] To address the aforementioned technical problems, this application provides a honeycomb-reinforced front bumper lower guard assembly, comprising a front bumper body and a lower guard body. A plurality of limiting cylinders are connected to the side of the front bumper body facing the lower guard body. A plurality of reinforcing ribs are provided on the top of the lower guard body. Insert rods adapted to the limiting cylinders are connected to the side of the reinforcing ribs facing the front bumper body. A limiting component for limiting the movement between the insert rod and the limiting cylinder is provided between the insert rod and the limiting cylinder. The limiting component includes a plurality of elastic barbs arranged in a circumferential array. A plurality of limiting grooves arranged in a linear array are formed on the outer surface of the limiting cylinder.

[0007] In some embodiments, the lower cover includes an upper cover and a lower cover, with a honeycomb core disposed between the upper cover and the lower cover. The upper cover and the lower cover are made of carbon fiber composite material, and the honeycomb core is made of aluminum honeycomb. The upper cover, the lower cover and the honeycomb core are composite molded by hot pressing process.

[0008] In some embodiments, the front bumper body has an internal mounting groove adapted to the lower guard plate body, and the lower guard plate body is installed inside the mounting groove.

[0009] In some embodiments, the bottom of the front bumper body is concave, and a fixing plate is provided on both sides of the interior of the front bumper body. A connecting hole is provided at the concave part of the front bumper body and at the corresponding position of the fixing plate when the front bumper body is installed in the mounting groove. A wing bolt is threaded into the internal part of the connecting hole.

[0010] In some embodiments, a plurality of connecting blocks are provided on the side of the lower guard plate away from the front bumper body. The outer surface of the connecting blocks is provided with mounting holes, and the connecting blocks are installed on the vehicle body by mounting bolts that fit into the mounting holes.

[0011] In some embodiments, the limiting cylinder has a guide groove inside, and the insertion rod has a guide strip that matches the guide groove on the outside.

[0012] In some embodiments, the resilient barbs are made of spring steel.

[0013] This utility model has at least the following beneficial effects:

[0014] In this invention, an insert rod is provided on the outside of the lower guard plate, and a limiting cylinder is provided inside the front bumper body. An elastic barb is provided on the insert rod, and a limiting groove is opened on the outside of the limiting cylinder, so that the elastic barb is stuck outside the limiting groove. When the front bumper body is impacted, the insert rod is limited by the elastic barb, preventing the insert rod from coming out of the inside of the limiting cylinder, thereby improving the strength of the lower guard plate and eliminating the possibility of the lower guard plate lifting up. Attached Figure Description

[0015] Figure 1This is a front view structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the exploded structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the lower guard plate and its related structures of the present invention;

[0019] Figure 5 This is a schematic diagram of the limiting cylinder structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the reinforcing rib structure of this utility model;

[0021] Figure 7 This is a schematic diagram of the internal structure of the lower guard plate of this utility model.

[0022] In the diagram: 1. Front bumper body; 11. Limiting cylinder; 12. Limiting groove; 13. Guide groove; 2. Lower guard plate body; 21. Reinforcing rib; 22. Insert rod; 23. Elastic barb; 24. Guide strip; 3. Fixing plate; 31. Connecting hole; 32. Wing bolt; 4. Connecting block. Detailed Implementation

[0023] 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.

[0024] Example 1: Please refer to Figures 1-7This utility model provides a technical solution: a honeycomb reinforced front bumper lower guard plate assembly, including a front bumper body 1 and a lower guard plate body 2. Multiple limiting cylinders 11 are connected to the side of the front bumper body 1 facing the lower guard plate body 2. Multiple reinforcing ribs 21 are provided on the top of the lower guard plate body 2. Insert rods 22 adapted to the limiting cylinders 11 are connected to the side of the reinforcing ribs 21 facing the front bumper body 1. A limiting component for limiting the position between the insert rods 22 and the limiting cylinders 11 is provided. The limiting component includes multiple elastic barbs 23 arranged in a circumferential array. Multiple limiting grooves 12 arranged in a linear array are opened on the outer surface of the limiting cylinders 11. Specifically, the lower guard plate body 2 is connected to the front bumper body 1. During connection, the lower guard plate body 2... Insert the rod 22 into the interior of the front bumper body 1 along the mounting groove, and insert the rod 22 into the interior of the limiting cylinder 11. When the rod 22 is inserted into the limiting cylinder 11, the elastic barb 23 is inserted into the interior of the limiting cylinder 11. As the elastic barb 23 contacts the edge of the limiting cylinder 11, the elastic barb 23 deforms until it is fully retracted to a state sufficient to be inserted into the limiting cylinder 11. When the rod 22 is fully inserted, the elastic barb 23 contacts the limiting groove 12, and the elastic barb 23 resets and is stuck in the limiting groove 12 outside the limiting cylinder 11. When the front bumper body 1 is impacted, the rod 22 is limited by the elastic barb 23, preventing the rod 22 from detaching from the interior of the limiting cylinder 11, thereby increasing the strength of the lower guard plate 2 and eliminating the possibility of the lower guard plate 2 lifting up.

[0025] In some embodiments, the lower protective plate 2 includes an upper cover and a lower cover, with a honeycomb core disposed between the upper and lower covers. The upper and lower covers are made of carbon fiber composite material, and the honeycomb core is made of aluminum honeycomb. The upper cover, lower cover, and honeycomb core are composite molded by a hot-pressing process. Specifically, the honeycomb core structure can provide extremely high bending stiffness with extremely light weight, while the carbon fiber material of the upper and lower covers ensures the impact resistance of the surface of the lower protective plate 2, preventing surface cracking of the lower protective plate 2 under stress.

[0026] In some embodiments, the front bumper body 1 has an internal mounting groove that is adapted to the lower guard plate body 2. The lower guard plate body 2 is installed inside the mounting groove. Specifically, the mounting groove is completely adapted to the lower guard plate body 2. The size of the mounting groove is larger than the size of the lower guard plate, so that there is enough space in the mounting groove to allow the lower guard plate body 2 to be fully inserted.

[0027] In some embodiments, the bottom of the front bumper body 1 is concave, and a fixing plate 3 is provided on both sides of the interior of the front bumper. A connecting hole 31 is provided at the concave part of the front bumper body 1 and at the corresponding position of the fixing plate 3 when the front bumper body 1 is installed in the mounting groove. A wing bolt 32 is threaded into the internal of the connecting hole 31. Specifically, when the front bumper body 1 is inserted into the mounting groove and the front bumper body 1 is fully inserted, the connecting hole 31 on the lower guard plate 2 corresponds to the connecting hole 31 on the fixing plate 3, and the wing bolt 32 is screwed into the corresponding connecting hole 31 to fix the lower guard plate 2 on the fixing plate 3.

[0028] In some embodiments, a plurality of connecting blocks 4 are provided on the side of the lower guard plate 2 away from the front bumper 1. The outer surface of the connecting block 4 is provided with mounting holes, and the connecting block 4 is installed on the vehicle body by mounting bolts that fit into the mounting holes.

[0029] In some embodiments, the limiting cylinder 11 has a guide groove 13 inside, and the outside of the insertion rod 22 is provided with a guide strip 24 that is adapted to the guide groove 13. Specifically, when the insertion rod 22 is inserted into the limiting cylinder 11, the guide strip 24 is inserted into the guide groove 13, so that the insertion rod 22 is stably inserted into the limiting cylinder 11, thereby causing the multiple elastic barbs 23 to respectively engage with the multiple limiting grooves 12.

[0030] In some embodiments, the elastic barb 23 is made of spring steel. Specifically, spring steel has excellent elastic limit and fatigue strength, which can meet the elastic deformation requirements of the elastic barb 23 to retract when inserted and automatically open and lock after insertion, while also being able to withstand long-term vehicle vibration and minor impacts to prevent barb breakage.

[0031] Based on the above embodiments, the following is the complete working principle of the above embodiments: In use, the lower guard plate 2 is connected to the front bumper body 1. During connection, the lower guard plate 2 is inserted into the interior of the front bumper body 1 along the mounting groove, and the insert rod 22 is inserted into the interior of the limiting cylinder 11. When fully inserted, the connecting hole 31 on the lower guard plate 2 corresponds to the connecting hole 31 on the fixing plate 3, and the wing bolt 32 is screwed into the corresponding connecting hole 31 to fix the lower guard plate 2 on the fixing plate 3. When the insert rod 22 is inserted into the interior of the limiting cylinder 11, the elastic barb 23 is inserted into the limiting cylinder 11. Inside, as the elastic barb 23 contacts the edge of the limiting cylinder 11, the elastic barb 23 deforms until it is fully retracted and inserted into the limiting cylinder 11. When the insert rod 22 is fully inserted, the elastic barb 23 contacts the limiting groove 12, and the elastic barb 23 resets and is locked in the limiting groove 12 outside the limiting cylinder 11. When the front bumper body 1 is impacted, the insert rod 22 is limited by the elastic barb 23, preventing the insert rod 22 from detaching from the inside of the limiting cylinder 11, thereby increasing the strength of the lower guard plate 2 and eliminating the possibility of the lower guard plate 2 lifting up.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A honeycomb reinforced front bumper lower guard plate assembly, comprising a front bumper body (1) and a lower guard plate body (2), characterized in that: The front bumper body (1) is connected to a plurality of limiting cylinders (11) on the side facing the lower guard plate body (2). The top of the lower guard plate body (2) is provided with a plurality of reinforcing ribs (21). The reinforcing ribs (21) are connected to the side facing the front bumper body (1) with insert rods (22) that are adapted to the limiting cylinders (11). A limiting component for limiting the insertion rods (22) and the limiting cylinders (11) is provided between the insert rods (22) and the limiting cylinders (11). The limiting component includes a plurality of elastic barbs (23). The plurality of elastic barbs (23) are arranged in a circumferential array. The outer surface of the limiting cylinders (11) is provided with a plurality of limiting grooves (12) arranged in a linear array.

2. The honeycomb reinforced front bumper lower guard plate assembly according to claim 1, characterized in that: The lower protective plate (2) includes an upper cover and a lower cover, with a honeycomb core between the upper cover and the lower cover. The upper cover and the lower cover are made of carbon fiber composite material, and the honeycomb core is made of aluminum honeycomb. The upper cover, the lower cover and the honeycomb core are composite molded by hot pressing process.

3. The honeycomb reinforced front bumper lower guard plate assembly according to claim 1, characterized in that: The front bumper body (1) has an internal mounting groove that is compatible with the lower guard plate body (2), and the lower guard plate body (2) is installed inside the mounting groove.

4. The honeycomb reinforced front bumper lower guard plate assembly according to claim 3, characterized in that: The bottom of the front bumper body (1) is concave. Fixing plates (3) are provided on both sides of the interior of the front bumper. A connecting hole (31) is provided at the concave part of the front bumper body (1) and at the corresponding part of the fixing plate (3) when the front bumper body (1) is installed in the mounting groove. A wing bolt (32) is threaded into the connecting hole (31).

5. The honeycomb reinforced front bumper lower guard plate assembly according to claim 1, characterized in that: The lower guard plate (2) is provided with a plurality of connecting blocks (4) on the side away from the front bumper (1). The outer surface of the connecting block (4) is provided with mounting holes. The connecting block (4) is installed on the vehicle body by mounting bolts that fit into the mounting holes.

6. The honeycomb reinforced front bumper lower guard plate assembly according to claim 1, characterized in that: The limiting cylinder (11) has a guide groove (13) inside, and the insert rod (22) has a guide strip (24) that matches the guide groove (13) on the outside.

7. The honeycomb reinforced front bumper lower guard plate assembly according to claim 1, characterized in that: The elastic barb (23) is made of spring steel.

Images