Combined light-weight high-rigidity reinforcing plate for vehicle

Abstract

The utility model discloses a combined light weight high stiffness car reinforcing plate, including outer layer protection layer, the splicing groove inner wall inserts and is connected with splicing frame, and splicing frame inboard fixedly connected with reinforcing rib layer, the core bearing layer inboard is equipped with honeycomb hole, and the honeycomb hole inboard inserts and is distributed with sound insulation cotton. This one kind combined light weight high stiffness car reinforcing plate can adopt honeycomb aluminum structure through core bearing layer, give consideration to light weight and bearing capacity, and reinforcing rib layer adopts the grid like aluminum alloy structure, promotes overall stiffness, and outer layer protection layer adopts high strength resin matrix composite material, plays the protection function, through the cooperation of each layer structure, while reducing the overall weight of reinforcing plate greatly, promotes its bending stiffness, effectively solves the problem that the light weight and high stiffness of existing reinforcing plate are difficult to give consideration to, and reinforcing rib layer and outer layer protection layer adopt detachable connection design, and the core bearing layer is filled with sound insulation cotton, can improve the sound insulation effect of reinforcing plate.

Description

Technical Field

[0001] This utility model relates to the field of automotive reinforcement plate technology, specifically a combined lightweight high-rigidity automotive reinforcement plate. Background Technology

[0002] As the automotive industry moves towards energy conservation and lightweight design, lightweight design of automotive structural components has become one of the core industry requirements. At the same time, the rigidity and deformation resistance of the vehicle body structure are directly related to the driving safety and stability of the vehicle. Therefore, automotive reinforcement plates must meet the dual requirements of lightweight and high rigidity.

[0003] A current type of reinforcing plate for the left side door of a car (CN201922026378.X) uses a screw nut to move a movable seat into a slot, thus installing the reinforcing plate body inside the door body. Simultaneously, rotating a lever disengages the movable seat from the slot, facilitating the removal of the reinforcing plate body. This simple operation improves installation and disassembly efficiency. However, it has shortcomings. Existing reinforcing plates are mostly made of single steel or aluminum alloy materials. Steel reinforcing plates have sufficient rigidity but are heavy, which is detrimental to vehicle weight reduction and energy efficiency. Aluminum alloy reinforcing plates, while achieving lightweighting, lack rigidity and are prone to deformation during vehicle operation, affecting the vehicle's structural stability. Furthermore, existing reinforcing plates are mostly one-piece molded structures, requiring replacement of the entire plate when damaged, resulting in high maintenance costs. Their fixed structural design makes it difficult to adapt to different vehicle models, installation locations, and dimensions, leading to poor adaptability. Therefore, a combined, lightweight, high-rigidity automotive reinforcing plate is needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a combined lightweight, high-rigidity automotive reinforcing plate to address the issues mentioned in the background section regarding reinforcing plates for the left door of automobiles, which are mostly made of single steel or aluminum alloy materials. Steel reinforcing plates offer sufficient rigidity but are heavy, hindering vehicle weight reduction and energy efficiency. While aluminum alloy reinforcing plates achieve lightweighting, they lack sufficient rigidity and are prone to deformation during vehicle operation, affecting the stability of the vehicle body structure. Furthermore, existing reinforcing plates are mostly one-piece molded structures, requiring replacement of the entire plate when local damage occurs, resulting in high maintenance costs. Their fixed structural design also makes them difficult to adapt to different vehicle models, installation locations, and dimensions, leading to poor adaptability.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined lightweight high-rigidity automotive reinforcing plate, comprising an outer protective layer, a core load-bearing layer attached to the middle of the outer protective layer, a thickened protrusion fixedly connected to the middle of the outer side of the outer protective layer, and the thickened protrusion and the outer side of the outer protective layer being coated with a coating; mounting bolt grooves are formed through the edges of the outer protective layer and the core load-bearing layer, and mounting bolt rods are inserted into the inner wall of the mounting bolt grooves; the inner edge of the outer protective layer protrudes and is fixedly connected to the core load-bearing layer. A sealing ring is fixedly connected to the outer edge of the core bearing layer, and the sealing ring is inserted into the sealing groove. The sealing groove is opened at the outer edge of the core bearing layer. A positioning buckle is fixedly connected to the middle of the inner side of the outer protective layer. Fixed bolt grooves are opened through the corners of the core bearing layer and the outer protective layer. Splicing grooves are opened on the front and rear edges of the core bearing layer. A splicing frame is inserted into the inner wall of the splicing groove, and a reinforcing rib layer is fixedly connected to the inner side of the splicing frame. Honeycomb holes are opened on the inner side of the core bearing layer, and sound insulation cotton is inserted into the inner side of the honeycomb holes.

[0006] Preferably, the outer protective layer is distributed in a clamping position outside the core bearing layer, and the outer protective layer is fixedly connected to the core bearing layer by a ring bolt through a mounting bolt groove and a mounting bolt rod. The outer protective layer is also connected to the core bearing layer by a sealing ring and a sealing groove in a snap-fit ​​sealing connection.

[0007] Preferably, the outer protective layer is installed in a positioning splicing manner with the reinforcing rib layer by positioning buckles, and the shape of the positioning buckles matches the hollow shape of the reinforcing rib layer. The outer protective layer is a high-strength resin-based composite material.

[0008] Preferably, the sound insulation cotton is distributed in a filling manner with the core bearing layer through honeycomb holes, and the honeycomb holes are distributed in a matrix position on the inner wall of the core bearing layer.

[0009] Preferably, the reinforcing rib layer is made of aluminum alloy square mesh material, and the reinforcing rib layer is symmetrically spliced ​​and connected to the core bearing layer through splicing frame and splicing groove.

[0010] Preferably, the thickened protrusion and the outer protective layer are integrally formed, and the coating is made of epoxy resin.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This combined lightweight high-rigidity automotive reinforcing plate can achieve both lightweight and load-bearing capacity by adopting a honeycomb aluminum structure for the core load-bearing layer, a grid-like aluminum alloy structure for the reinforcing rib layer to improve overall rigidity, and a high-strength resin-based composite material for the outer protective layer. Through the synergistic cooperation of each layer, the overall weight of the reinforcing plate is significantly reduced while its bending rigidity is improved, effectively solving the problem of the difficulty in balancing lightweight and high rigidity in existing reinforcing plates. Moreover, the reinforcing rib layer and the outer protective layer adopt a detachable connection design, and the core load-bearing layer is filled with sound insulation cotton, which can improve the sound insulation effect of the reinforcing plate. Attached Figure Description

[0012] Figure 1 This is a front view of a combined lightweight high-rigidity automotive reinforcing plate according to the present invention; Figure 2 This is a top view of the internal structure of a combined lightweight high-rigidity automotive reinforcing plate according to this utility model. Figure 3 This utility model relates to a combined lightweight high-rigidity automotive reinforcing plate. Figure 2 Enlarged view of point A in the middle; Figure 4 This utility model relates to a combined lightweight high-rigidity automotive reinforcing plate. Figure 2 Enlarged view at point B in the middle; Figure 5 This utility model relates to a combined lightweight high-rigidity automotive reinforcing plate. Figure 2 Enlarged view at point C; Figure 6 This utility model relates to a combined lightweight high-rigidity automotive reinforcing plate. Figure 2 Enlarged view of point D in the middle.

[0013] In the diagram: 1. Outer protective layer, 2. Fixing bolt groove, 3. Core load-bearing layer, 4. Sound insulation cotton, 5. Sealing ring, 6. Sealing groove, 7. Mounting bolt groove, 8. Mounting bolt rod, 9. Splicing frame, 10. Reinforcing rib layer, 11. Splicing groove, 12. Thickened protrusion, 13. Coating, 14. Positioning buckle, 15. Honeycomb hole. Detailed Implementation

[0014] 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.

[0015] Please see Figure 1-6This utility model provides a technical solution: a combined lightweight high-rigidity automotive reinforcing plate, comprising an outer protective layer 1, a fixing bolt groove 2, a core bearing layer 3, sound insulation cotton 4, a sealing ring 5, a sealing groove 6, a mounting bolt groove 7, a mounting bolt rod 8, a splicing frame 9, a reinforcing rib layer 10, a splicing groove 11, a thickened protrusion 12, a coating 13, a positioning buckle 14, and honeycomb holes 15. The core bearing layer 3 is attached to the middle of the outer protective layer 1, and the outer protective layer 1 is positioned in a clamping position on the outside of the core bearing layer 3. The outer protective layer 1 is fixedly connected to the core bearing layer 3 by a ring bolt through the mounting bolt groove 7 and the mounting bolt rod 8. The outer protective layer 1 is further secured by the sealing ring 5 and the sealing groove 6. The outer protective layer 1 is connected to the core bearing layer 3 in a snap-fit ​​and sealed manner, allowing for clamping and sealing bolt installation. This ensures stable installation and convenient disassembly and replacement. The outer protective layer 1 is installed in a positioning splicing manner with the reinforcing rib layer 10 via positioning fasteners 14, and the shape of the positioning fasteners 14 matches the hollow shape of the reinforcing rib layer 10. The outer protective layer 1 is made of high-strength resin-based composite material, which provides excellent protective effect and assists in positioning and installation, ensuring stability. A thickened protrusion 12 is fixedly connected to the middle of the outer side of the outer protective layer 1, and both the thickened protrusion 12 and the outer side of the outer protective layer 1 are coated with a coating 13. The thickened protrusion 12 and the outer protective layer 1 are integrally formed. Layer 13 is made of epoxy resin, which allows the thickened protrusion 12 to provide auxiliary support and protection, and also provides waterproof and UV-resistant properties. The outer protective layer 1 and the core load-bearing layer 3 have through-cut mounting bolt grooves 7, and mounting bolt rods 8 are inserted into the inner wall of the mounting bolt grooves 7. A sealing ring 5 is protruding and fixedly connected to the inner edge of the outer protective layer 1, and the sealing ring 5 is inserted into a sealing groove 6. The sealing groove 6 is located on the outer edge of the core load-bearing layer 3. A positioning buckle 14 is protruding and fixedly connected to the middle of the inner side of the outer protective layer 1. Fixing bolt grooves 2 are through-cut at the corners of the core load-bearing layer 3 and the outer protective layer 1, and splicing grooves 11 are formed on the front and rear edges of the core load-bearing layer 3. The inner wall of the groove 11 is connected to the splicing frame 9, and the inner side of the splicing frame 9 is fixedly connected to the reinforcing rib layer 10. The reinforcing rib layer 10 is made of aluminum alloy square mesh material, and the reinforcing rib layer 10 is symmetrically spliced ​​to the core bearing layer 3 through the splicing frame 9 and the splicing groove 11. This allows the reinforcing rib layer 10 to assist in structural reinforcement and facilitate independent splicing, disassembly and replacement. The inner side of the core bearing layer 3 has honeycomb holes 15, and the inner side of the honeycomb holes 15 is filled with sound insulation cotton 4. The sound insulation cotton 4 is filled with the core bearing layer 3 through the honeycomb holes 15, and the honeycomb holes 15 are distributed in a matrix position on the inner wall of the core bearing layer 3. This allows the sound insulation cotton 4 to be matrix filled, resulting in good sound insulation effect.

[0016] Working principle: When using this type of combined lightweight high-rigidity automotive reinforcement plate, firstly, sound insulation cotton 4 is filled into the honeycomb holes 15 on the inner wall of the core load-bearing layer 3. Then, the reinforcing rib layer 10 is assembled with the core load-bearing layer 3 on the front and rear sides through the splicing frame 9 and splicing groove 11. Next, the outer protective layer 1 is positioned and spliced ​​with the reinforcing rib layer 10 through the positioning buckle 14. Then, it is fastened and sealed by the sealing ring 5 and sealing groove 6. Next, the outer protective layer 1 and the core load-bearing layer 3 are fixed with ring bolts through the mounting bolt groove 7 and mounting bolt rod 8. Then, it is installed with the equipment through the fixing bolt groove 2. During use, the outer protective layer 1, the reinforcing rib layer 10 and the thickened protrusion 12 can be used for reinforcement and support. When some parts need to be replaced, they can be disassembled and replaced independently. This is the usage process of this type of combined lightweight high-rigidity automotive reinforcement plate.

[0017] It should be noted that this utility model is a combined lightweight high-rigidity automotive reinforcing plate. All components are standard parts or components known to those skilled in the art. Its structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Furthermore, all electrical components mentioned above refer to power elements, electrical components, and the matching monitoring computer and power supply connected by wires. The specific connection method should refer to the working principle described above, and the electrical connection between each electrical component should be completed in the order of operation. The detailed connection method is a well-known technology in the field.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. A composite lightweight high-rigidity automotive reinforcing plate, comprising an outer protective layer (1), wherein a core load-bearing layer (3) is attached to the middle of the outer protective layer (1), characterized in that: The outer protective layer (1) has a thickened protrusion (12) fixedly connected to the middle of its outer side, and the thickened protrusion (12) and the outer protective layer (1) are coated with a coating (13). The outer protective layer (1) and the core bearing layer (3) have mounting bolt grooves (7) through their edges, and mounting bolt rods (8) are inserted into the inner wall of the mounting bolt grooves (7). The inner edge of the outer protective layer (1) has a sealing ring (5) fixedly connected to its inner side, and the sealing ring (5) is inserted into the sealing groove (6). The sealing groove (6) is located outside the core bearing layer (3). On the side edge, a positioning buckle (14) is fixedly connected to the middle of the inner side of the outer protective layer (1). The corners of the core bearing layer (3) and the outer protective layer (1) are provided with fixing bolt grooves (2). The front and rear side edges of the core bearing layer (3) are provided with splicing grooves (11). The inner wall of the splicing groove (11) is connected with a splicing frame (9). The inner side of the splicing frame (9) is fixedly connected with a reinforcing rib layer (10). The inner side of the core bearing layer (3) is provided with honeycomb holes (15). The inner side of the honeycomb holes (15) is provided with sound insulation cotton (4).

2. The combined lightweight high-rigidity automotive reinforcing plate according to claim 1, characterized in that: The outer protective layer (1) is distributed in a clamping position on the outside of the core bearing layer (3), and the outer protective layer (1) is fixedly connected to the core bearing layer (3) by a ring bolt through the mounting bolt groove (7) and the mounting bolt rod (8). The outer protective layer (1) is connected to the core bearing layer (3) by a snap-fit ​​seal through the sealing ring (5) and the sealing groove (6).

3. The combined lightweight high-rigidity automotive reinforcing plate according to claim 2, characterized in that: The outer protective layer (1) is installed in a positioning splicing manner with the reinforcing rib layer (10) by positioning buckle (14), and the shape of the positioning buckle (14) matches the hollow shape of the reinforcing rib layer (10). The outer protective layer (1) is a high-strength resin-based composite material.

4. The combined lightweight high-rigidity automotive reinforcing plate according to claim 3, characterized in that: The sound insulation cotton (4) is distributed in a filling manner with the core bearing layer (3) through honeycomb holes (15), and the honeycomb holes (15) are distributed in a matrix position on the inner wall of the core bearing layer (3).

5. A combined lightweight high-rigidity automotive reinforcing plate according to claim 4, characterized in that: The reinforcing rib layer (10) is made of aluminum alloy square grid material, and the reinforcing rib layer (10) is symmetrically spliced ​​and connected to the core bearing layer (3) through splicing frame (9) and splicing groove (11).

6. The combined lightweight high-rigidity automotive reinforcing plate according to claim 5, characterized in that: The thickened protrusion (12) and the outer protective layer (1) are integrally formed, and the coating (13) is made of epoxy resin.

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