Carbon fiber plate with high impact resistance

Abstract

The utility model relates to the technical field of carbon fiber plates, in particular to a high-impact-resistance carbon fiber plate which comprises a plate body, the outer walls of the side faces and the bottom face of the plate body are connected in an outer surrounding sleeve in a sleeved mode, and the plate body in the outer surrounding sleeve is sequentially provided with an impact-resistance layer, a rubber layer and a carbon fiber bottom plate from top to bottom. A carbon fiber frame is arranged between the impact-resistant layer and the rubber layer at intervals, a plurality of clamping grooves which are regularly arranged are formed in one side of the carbon fiber frame, a limiting column is vertically and upwards arranged at the horizontal bottom of the carbon fiber frame in the center of each clamping groove, the impact-resistant layer is composed of carbon fiber single blocks, sleeve holes are formed in the bottom faces of the carbon fiber single blocks, and the carbon fiber single blocks are clamped in the clamping grooves. According to the utility model, vertical impact on the top can be converted into internal horizontal tensile force, so that the impact on the fragile surface of the carbon fiber plate is weakened, and the impact resistance of the carbon fiber plate is enhanced.

Description

Technical Field

[0001] This utility model relates to the field of carbon fiber plate technology, and more specifically, to a carbon fiber plate with high impact resistance. Background Technology

[0002] Due to its high strength, high modulus, high temperature resistance, fatigue resistance, electrical conductivity, and thermal conductivity, carbon fiber is widely used in civil engineering, aerospace, automotive, sporting goods, energy, and medical and health fields. Furthermore, carbon fiber has extensive applications in electronic communications, oil extraction, and infrastructure, primarily as a discharge shielding material, antistatic material, centrifuge material for uranium separation, and battery electrodes. It also performs well in biochemical protection, ozone removal, and food processing. However, carbon fiber products also have significant drawbacks. These include brittleness and reduced toughness after molding, resulting in poor impact resistance. They are susceptible to damage from impacts and punctures by sharp objects; exceeding their tolerance will cause the fibers to break, leading to the structural collapse of the entire component.

[0003] A prestressed carbon fiber plate, disclosed in CN220203045U, includes a fixed anchor, a tensioning anchor, a tensioning fixing seat, and a carbon fiber plate. One end of the carbon fiber plate is connected to the fixed anchor, and the other end is connected to the tensioning fixing seat. A tensioning rod is connected to the tensioning anchor and is slidably connected to both sides of the tensioning fixing seat. An end plate is connected to the end of the tensioning fixing seat away from the tensioning anchor. A jack is connected to the tensioning fixing seat and rests against the end plate. The outer wall of the tensioning rod has external threads, and both ends of the tensioning rod are threaded with first fastening nuts. A second fastening nut is also threaded onto the tensioning rod and is located between the tensioning fixing seat and the end plate. A fixing mechanism for fixing the end of the carbon fiber plate is also provided at the opposite ends of the fixed anchor and the tensioning anchor. This invention allows for more uniform force distribution during the clamping and fixing of the carbon fiber plate, making it less prone to pull-out and breakage.

[0004] Since the resistance of carbon fiber to impact forces in different directions is not uniform, the above-mentioned utility model exhibits relatively poor compressive strength when subjected to frontal impact. Therefore, a carbon fiber plate with strong impact resistance is designed by utilizing the strong tensile properties of carbon fiber plate in the carbon fiber direction. Utility Model Content

[0005] The purpose of this invention is to provide a carbon fiber plate with high impact resistance to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A high-impact carbon fiber plate includes a plate body with an equilateral triangular cross-section. The plate body includes an outer sleeve with an open top surface. Inside the outer sleeve, from top to bottom, there are an impact-resistant layer, a rubber layer, and a carbon fiber base plate of the same size. The top surface of the rubber layer is provided with a carbon fiber frame for fixing the impact-resistant layer. The top surface of the carbon fiber frame has several regularly arranged slots. The bottom center of each slot has an integrally formed cylindrical limiting post. The impact-resistant layer is composed of several regularly arranged hexagonal carbon fiber blocks. The bottom surface of each carbon fiber block has a sleeve hole that matches the size of the limiting post. The carbon fiber blocks are snapped into the slots and fixed by adhesive.

[0008] Preferably, the outer sleeve is integrally molded from a rigid material, and the outer corners of the outer sleeve are all rounded.

[0009] Preferably, the carbon fiber filaments of the carbon fiber frame are arranged parallel to the plane of the impact-resistant layer, the carbon fiber filaments of the carbon fiber block and the carbon fiber base plate are arranged vertically, and an epoxy resin layer for increasing toughness is cast on the top surface of the impact-resistant layer on the inner side of the outer sleeve.

[0010] Preferably, the upper part of the sleeve hole is arched, and the lower part is cylindrical with the same height and outer diameter as the limiting post, and the groove depth is equal to the height of the carbon fiber block.

[0011] Preferably, the slots are arranged in a honeycomb pattern, the outer wall of the carbon fiber frame is serrated and has intermittent contact with the inner wall of the outer sheath, and an elastic spring is placed in the hollow triangle formed between each intermittent contact to reduce the impact between the two, and a rubber block for buffering the impact is filled between the surfaces of the two walls in contact.

[0012] Preferably, the elastic spring is arc-shaped and its curved outer wall is in close contact with the outer wall of the carbon fiber frame. The planar sidewall of the elastic spring penetrates the sidewall of the outer sleeve, and the outer wall of the outer sleeve is provided with fixing plates that correspond one-to-one with the number and position of the elastic springs. The fixing plates are fixed to the elastic springs by bolts.

[0013] Preferably, both the rubber layer and the carbon fiber base plate are bonded and fixed to the inner wall of the outer casing with adhesive.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This impact-resistant carbon fiber plate utilizes the high strength of carbon fiber in its carbon fiber direction to convert vertical impacts on the top into internal horizontal tensile forces, thus reducing the impact force on the brittle side of the carbon fiber plate and enhancing its impact resistance. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is an exploded view of the overall structure of the utility model;

[0018] Figure 3 This is a cross-sectional front view of a partial structure in the utility model;

[0019] Figure 4 This is a schematic diagram of a half-section of a carbon fiber monolith in the utility model.

[0020] Figure 5 This is a top view of the impact-resistant layer in the utility model.

[0021] Figure 6 This is one of the partial half-section structural schematic diagrams of a utility model;

[0022] Figure 7 for Figure 6 A schematic diagram of the front view of the cross-section;

[0023] Figure 8 This is the second partial cross-sectional schematic diagram of the structure in the utility model.

[0024] In the diagram: 1. Plate body; 11. Outer sleeve; 12. Impact-resistant layer; 121. Carbon fiber single piece; 1210. Sleeve hole; 13. Carbon fiber frame; 131. Slot; 132. Limiting post; 14. Elastic spring; 141. Fixing piece; 15. Rubber layer; 16. Carbon fiber base plate; 17. Epoxy resin layer. Detailed Implementation

[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] Please see Figures 1-8 This embodiment provides a technical solution:

[0027] A high-impact carbon fiber plate includes a plate body 1 with an equilateral triangular cross-section. The plate body 1 includes an outer sleeve 11 with an open top surface. Inside the outer sleeve 11, from top to bottom, there are an impact-resistant layer 12, a rubber layer 15, and a carbon fiber base plate 16 of the same size. The top surface of the rubber layer 15 is provided with a carbon fiber frame 13 for fixing the impact-resistant layer 12. The top surface of the carbon fiber frame 13 has several regularly arranged slots 131. The bottom center of each slot 131 has an integrally formed cylindrical limiting post 132. The impact-resistant layer 12 is composed of several regularly arranged hexagonal carbon fiber blocks 121. The bottom surface of each carbon fiber block 121 has a sleeve hole 1210 that matches the size of the limiting post 132. The carbon fiber block 121 is snapped into the slot 131 and fixed by adhesive.

[0028] In this embodiment, to enhance the flexibility of the outer sleeve 11, while ensuring resistance strength, the outer sleeve 11 is made of rigid material. To release the force at the transition point, its three sides and bottom are integrally formed, and the connection points of each side are rounded.

[0029] Furthermore, to enhance the lateral tensile strength, the carbon fiber filaments of the carbon fiber frame 13 are arranged parallel to the plane of the impact-resistant layer 12, and the carbon fiber filaments of the carbon fiber block 121 and the carbon fiber base plate 16 are arranged vertically, which can increase the resistance strength in the vertical direction; the carbon fiber is chemically treated with epoxy resin and formed, and an epoxy resin layer 17 is formed on the upper surface of the impact-resistant layer 12 to increase toughness.

[0030] In addition, the upper part of the sleeve hole 1210 is arched, and the lower part is cylindrical with the same height and diameter as the limiting post 132. The arched shape is used to divide the impact into lateral force, which is borne by the carbon fiber frame 13. The depth of the slot 131 is equal to the height of the carbon fiber block 121.

[0031] Furthermore, to enhance horizontal tensile strength, the outer wall of the carbon fiber frame 13 is serrated and makes intermittent contact with the inner wall of the outer sleeve 11. Each hollow triangle formed between the intermittent contacts is filled with an elastic spring 14 to reduce the impact between the two, and rubber blocks for buffering the impact are filled at the contact points of the two walls.

[0032] Specifically, to buffer lateral forces, the elastic spring 14 is arc-shaped and its curved outer wall is in close contact with the outer wall of the carbon fiber frame 13. The planar side wall of the elastic spring 14 penetrates the side wall of the outer sleeve 11, and the outer wall of the outer sleeve 11 is provided with fixing pieces 141 that correspond one-to-one with the number and position of the elastic spring 14. The fixing pieces 141 and the elastic spring 14 are fixed together by bolts.

[0033] Furthermore, the rubber layer 15 and the carbon fiber base plate 16, which serve as buffers and supports, are both bonded and fixed to the inner wall of the outer sleeve 11.

[0034] When using the impact-resistant carbon fiber plate of this utility model, the layer with epoxy resin layer 17 is facing the impact position and fixed at the bottom. This can convert part of the vertical force of the impact on the carbon fiber plate from the outside into tensile force on the carbon fiber plate in all directions. After use, the internal structure needs to be inspected, replaced and maintained.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to these embodiments without departing from the spirit and scope of this utility model, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-impact resistant carbon fiber plate, characterized in that: The plate (1) includes a plate body with an equilateral triangle cross-section. The plate body (1) includes an outer sleeve (11) with an open top surface. The outer sleeve (11) has an impact-resistant layer (12), a rubber layer (15), and a carbon fiber base plate (16) arranged from top to bottom. The top surface of the rubber layer (15) is provided with a carbon fiber frame (13) for fixing the impact-resistant layer (12). The top surface of the carbon fiber frame (13) is provided with several regularly arranged slots (131). The bottom center of each slot (131) is integrally formed with a cylindrical limiting post (132). The impact-resistant layer (12) is composed of several carbon fiber blocks (121) with a regular hexagonal cross-section arranged regularly. The bottom surface of each carbon fiber block (121) is provided with a sleeve hole (1210) that matches the size of the limiting post (132). The carbon fiber block (121) is snapped into the corresponding slot (131) and fixed by adhesive.

2. The impact-resistant carbon fiber plate according to claim 1, characterized in that: The outer sleeve (11) is integrally formed from a rigid material, and the outer corners of the outer sleeve (11) are all rounded.

3. The impact-resistant carbon fiber plate according to claim 1, characterized in that: The carbon fiber filaments of the carbon fiber frame (13) are arranged parallel to the plane of the impact-resistant layer (12). The carbon fiber filaments of the carbon fiber block (121) and the carbon fiber base plate (16) are arranged vertically. An epoxy resin layer (17) for increasing toughness is cast on the top surface of the impact-resistant layer (12) inside the outer sleeve (11).

4. The impact-resistant carbon fiber plate according to claim 1, characterized in that: The upper part of the sleeve hole (1210) is arched, and the lower part is cylindrical with the same height and outer diameter as the limiting post (132). The depth of the slot (131) is equal to the height of the carbon fiber block (121).

5. The impact-resistant carbon fiber plate according to claim 1, characterized in that: The slots (131) are arranged in a honeycomb pattern. The outer wall of the carbon fiber frame (13) is serrated and has intermittent contact with the inner wall of the outer sleeve (11). Each hollow triangle formed between the intermittent contacts is filled with an elastic spring (14) to reduce the impact between the two. A rubber block for buffering the impact force is filled between the surfaces of the carbon fiber frame (13) and the outer sleeve (11) that are in contact.

6. The impact-resistant carbon fiber plate according to claim 5, characterized in that: The elastic spring (14) is arc-shaped and its curved outer wall is in close contact with the outer wall of the carbon fiber frame (13). The planar side wall of the elastic spring (14) penetrates the side wall of the outer sleeve (11). The outer wall of the outer sleeve (11) is provided with fixing pieces (141) that correspond one-to-one with the number and position of the elastic spring (14). The fixing pieces (141) are fixed to the elastic spring (14) by bolts.

7. The impact-resistant carbon fiber plate according to claim 1, characterized in that: The rubber layer (15) and the carbon fiber base plate (16) are both bonded and fixed to the inner wall of the outer sleeve (11) with adhesive.

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