A carbon fiber flexible rivet

Abstract

This utility model discloses a flexible carbon fiber rivet, comprising a first riveting section and a second riveting section. The first riveting section includes a rivet rod and several flexible first carbon fiber bundles connected to one end of the rivet rod. A tapered cavity is provided at the end of the rivet rod away from the first carbon fiber bundles. The second riveting section includes a rivet and several flexible second carbon fiber bundles connected to one end of the rivet. The rivet is tapered and matches the tapered cavity of the rivet rod. Both the rivet rod and the rivet are made of carbon fiber. After the rivet and the rivet rod are joined, they form a whole, thereby creating a more stable connection between the carbon fiber cloth and the first and second carbon fiber bundles.

Description

Technical Field

[0001] This utility model relates to the field of rivet technology, specifically to a carbon fiber flexible rivet. Background Technology

[0002] Carbon fiber anchors, used to connect fiber cloth (specifically carbon fiber cloth or FRP cloth), are a key component commonly used in structural reinforcement engineering. They primarily address some core challenges of carbon fiber cloth in reinforcement applications: end anchoring, preventing peeling damage, connecting multiple fiber cloth segments, and fixing in complex geometries.

[0003] During the reinforcement process, holes are first precisely positioned and drilled on the substrate according to design requirements. Then, adhesive is injected into the holes. Next, the anchoring section of the carbon fiber anchor is rotated and inserted into the injected hole, ensuring the designed depth is reached and the outer end of the carbon fiber anchor is flush with the substrate. Then, the unfolded forked sections are aligned with the fiber cloth to be connected, impregnated with adhesive, and bonded in place. Finally, curing is performed. This completes the installation of the carbon fiber cloth.

[0004] Currently, carbon fiber cloth is generally installed on one side of the wall and fixed to the wall with carbon fiber rivets. If carbon fiber cloth needs to be installed on both sides of the wall, rivets need to be installed on both sides of the wall. Therefore, the following problems will exist: (1) The two rivets are separate and have no connection, which is not conducive to fixing the carbon fiber cloth on both sides of the wall; (2) If the wall thickness is small, the two rivets will inevitably collide, so the rivets need to be cut on site, which makes the installation inconvenient. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a carbon fiber flexible rivet to solve the problems of inconvenient installation and lack of connection between two rivets.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A flexible carbon fiber rivet includes a first riveting section and a second riveting section. The first riveting section includes a rivet shank and several flexible first carbon fiber bundles connected to one end of the rivet shank. The end of the rivet shank away from the first carbon fiber bundles has a tapered cavity. The second riveting section includes a rivet and several flexible second carbon fiber bundles connected to one end of the rivet. The rivet is tapered and matches the tapered cavity of the rivet shank. Both the rivet shank and the rivet are made of carbon fiber.

[0008] Preferably, the rivet has an injection hole at the center of the end near the first carbon fiber bundle, and the injection hole is connected to the conical cavity.

[0009] In the above technical solution, after the rivet rod is inserted into the drilled hole and connected with the rivet, glue is injected into the conical cavity through the glue injection hole. The glue gradually penetrates onto the rivet, thereby fixing the rivet and rivet rod together through the glue, making the connection between the two more stable.

[0010] Preferably, the outer wall of the rivet has a spiral pattern.

[0011] The above technical solution, through the design of the spiral pattern, facilitates the adhesive to penetrate downwards along the spiral pattern so as to cover the rivet.

[0012] Preferably, a cover plate is connected to one end of the rivet near the second carbon fiber bundle, and a sealing ring is provided around the periphery of the cover plate facing the rivet.

[0013] In the above technical solution, when the rivet is inserted into one side of the wall, the rivet is struck with a tool to press the cover plate tightly against the wall. Through the action of the cover plate and the sealing ring, one end of the drill hole is blocked. When the glue is injected from the other end of the drill hole, it can prevent the glue from oozing out of the drill hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) Drill a through hole in the wall, insert a rivet rod into one end of the hole, insert a rivet into the other end of the hole, insert the rivet into the conical cavity of the rivet rod, thereby connecting the rivet and the rivet rod, that is, making the rivet and the rivet rod form a whole, so as to form a more stable connection between the carbon fiber cloth through the first carbon fiber bundle and the second carbon fiber bundle.

[0016] (2) If the wall thickness is not large, there is no need to cut the rivets or rivets on site. Just insert the rivets into the rivets, which improves the convenience of installation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 This is a cross-sectional view of the present invention;

[0019] Figure 3 This is a schematic diagram showing the connection between the first and second riveting sections.

[0020] Figure 4 This is a schematic diagram of the first carbon fiber bundle after it has been unfolded.

[0021] In the figure: 1-first riveting section, 11-rivet rod, 12-first carbon fiber bundle, 13-conical cavity, 14-injection hole, 2-second riveting section, 21-rivet, 22-second carbon fiber bundle, 23-cover plate, 24-sealing ring. Detailed Implementation

[0022] 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.

[0023] Example 1

[0024] Please see Figures 1-4 A flexible carbon fiber rivet includes a first riveting section 1 and a second riveting section 2. The first riveting section 1 includes a rivet 11 and a plurality of flexible first carbon fiber bundles 12 connected to one end of the rivet 11. The end of the rivet 11 away from the first carbon fiber bundles is provided with a tapered cavity 13. The second riveting section 2 includes a rivet 21 and a plurality of flexible second carbon fiber bundles 22 connected to one end of the rivet. The rivet 21 is tapered and matches the tapered cavity 13 of the rivet 11. Both the rivet 11 and the rivet 21 are made of carbon fiber.

[0025] When carbon fiber cloth needs to be installed on both sides of a wall, firstly, through holes are drilled in the wall. Then, a rivet rod 11 is inserted into one end of the drilled hole, and a rivet 21 is inserted into the other end. The rivet 21 is inserted into the tapered cavity 13 of the rivet rod, thus connecting the rivet 21 and the rivet rod 11. Then, the first carbon fiber bundle 12 or the second fiber bundle 22 is spread out in a circular shape and pasted onto the surface of the carbon fiber cloth. Finally, a layer of carbon fiber adhesive is applied to the surface of the carbon fiber bundle. After the rivet 21 and the rivet rod 11 are connected, they form a whole, so as to form a more stable connection between the carbon fiber cloth and the first carbon fiber bundle 12 and the second carbon fiber bundle 22.

[0026] The rivet 11 has a glue injection hole 14 at its center near the end of the first carbon fiber bundle, and the glue injection hole 14 communicates with the conical cavity 13. The outer wall of the rivet 21 has a spiral pattern. After the rivet 11 is inserted into the drilled hole and connected to the rivet 21, glue is injected into the conical cavity 13 through the glue injection hole 14. The glue gradually penetrates onto the rivet 21 through the spiral pattern, thereby fixing the rivet 21 and the rivet 11 together with the glue, making the connection between the two more stable.

[0027] Example 2

[0028] Based on Embodiment 1, a cover plate 23 is connected to one end of the rivet 21 near the second carbon fiber bundle. A sealing ring 24 is provided around the periphery of the cover plate 23 facing the rivet. When the rivet 21 is inserted into one side of the wall, the rivet 21 is struck with a tool to press the cover plate 23 tightly against the wall. Through the action of the cover plate 23 and the sealing ring 24, one end of the drill hole is blocked, preventing the glue from oozing out of the drill hole when glue is injected from the other end of the drill hole.

[0029] It should be noted that 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 a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0030] 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, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon fiber flexible rivet, characterized by: The riveting device comprises a first riveting section (1) and a second riveting section (2), the first riveting section (1) comprises a rivet rod (11) and a plurality of flexible first carbon fiber bundles (12) connected to one end of the rivet rod (11), a tapered cavity (13) is arranged at the end of the rivet rod (11) away from the first carbon fiber bundles (12), the second riveting section (2) comprises a rivet (21) and a plurality of flexible second carbon fiber bundles (22) connected to one end of the rivet (21), the rivet (21) is tapered and matched with the tapered cavity (13) of the rivet rod (11).

2. A carbon fiber flexible rivet according to claim 1, wherein: A glue injection hole (14) is arranged at the center of the end of the rivet rod (11) close to the first carbon fiber bundles (12), and the glue injection hole (14) is communicated with the tapered cavity (13).

3. A carbon fiber flexible rivet according to claim 2, wherein: A spiral thread is arranged on the outer wall of the rivet (21).

4. A carbon fibre flexible rivet according to claim 3, wherein: A cover plate (23) is connected to the end of the rivet (21) close to the second carbon fiber bundles (22), and a sealing ring (24) is arranged on the periphery of the side of the cover plate (23) facing the rivet.

5. A carbon fibre flexible rivet according to claim 4, wherein: The rivet rod (11) and the rivet (21) are both made of carbon fiber material.

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