Wood component carbon fiber green reinforcing structure
The combined structure of reinforcement plates, countersunk bolts and carbon fiber cloth solves the problems of bolt leakage and insufficient bearing capacity in the reinforcement of wooden components, thereby improving the aesthetics and bearing capacity.
Patent Information
- Application Number
- CN202422753998.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-11-12
AI Technical Summary
The existing methods for reinforcing wooden components have problems such as bolt leakage, uneven surface and insufficient improvement in the bearing capacity of carbon fiber reinforcement.
A combined structure of reinforcement plates and countersunk bolts is used in combination with carbon fiber cloth for reinforcement, which is repaired and fixed through adhesive layers and filling layers to form a surface adhesive layer of the carbon fiber cloth to enhance the reinforcement effect.
It effectively reduces the cross-sectional area of the reinforced structure, improves the aesthetics and structural bearing capacity of the reinforced plate, and enhances the stability and aesthetics of the reinforced beam.
Smart Images

Figure CN223305476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of wood component reinforcement, in particular to a carbon fiber green reinforcement structure for wood components. Background Art
[0002] Timber components are independent load-bearing units within a timber structure. Using wood as their primary structural material, they form an integral structure through specific connections and construction methods, bearing the brunt of various loads and forces. Timber components are widely used in buildings, bridges, ships, aircraft, and other fields. In construction, timber components are primarily used to construct the framework and load-bearing structure of buildings; in the bridge sector, timber components are often used in the construction and reinforcement of small bridges; in the shipbuilding sector, timber components are used to construct hulls and decks; and in the aircraft sector, timber components are used in the fuselage and trusses of small aircraft. To address potential damage and decay to timber components, appropriate reinforcement structures are necessary.
[0003] For example, the Chinese patent "A reinforcement structure for wooden components of ancient buildings" with announcement number CN218234454U includes a first guard plate, one end of the first guard plate is rotatably connected to the third guard plate, one end of the third guard plate is rotatably connected to the fourth guard plate, one end of the fourth guard plate is rotatably connected to the second guard plate, the first guard plate and the second guard plate are detachably connected, the surfaces of the second guard plate and the third guard plate are movably connected to connecting plates, the surface of each connecting plate is rotatably connected to a sheath assembly, the surface of the first guard plate is provided with a storage groove, a positioning pin is movably inserted in the storage groove, the positioning pin is a U-shaped structure, the surface of the first guard plate is provided with a second positioning groove for one end of the positioning pin to be embedded, and the surface of the second guard plate is provided with a second positioning groove for the other end of the positioning pin to be embedded The first positioning groove is embedded in the first positioning groove, and the surface of the positioning pin is provided with an avoidance groove. Both sides of each connecting plate are fixedly connected with a sliding block, and the sliding block is a cylindrical structure. The surfaces of the second guard plate and the third guard plate are cooperated to provide a sliding groove for the sliding block to move up and down. The surfaces of the second guard plate and the third guard plate are fixedly connected with a limiting plug. The bottom of each connecting plate is cooperated to provide a limiting slot for the limiting plug to be embedded. The cover assembly includes a fifth guard plate, a sixth guard plate, a seventh guard plate and an eighth guard plate. The fifth guard plate and the seventh guard plate are rotatably connected, the seventh guard plate and the eighth guard plate are rotatably connected, the eighth guard plate and the sixth guard plate are rotatably connected, the fifth guard plate and the connecting plate are rotatably connected, and the fifth guard plate and the sixth guard plate are detachably connected.
[0004] Although the above-mentioned existing technologies can achieve the reinforcement of wooden components, in actual use, on the one hand, the method of increasing the cross-section usually results in bolt leakage and uneven surface. At the same time, the increased cross-section size is too large, which affects the use. On the other hand, the use of carbon fiber reinforcement has little effect on the structural bearing capacity, which is difficult to meet the structural use requirements. Therefore, it does not meet the existing needs. In this regard, we propose a carbon fiber green reinforcement structure for wooden components. Utility Model Content
[0005] The purpose of the utility model is to provide a carbon fiber green reinforcement structure for wooden components, so as to solve the problems of bolt leakage and uneven surface caused by the usual method of increasing the cross-section proposed in the above background technology, and the small improvement of the structural bearing capacity by using carbon fiber reinforcement.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a carbon fiber green reinforcement structure for wooden components, including a reinforcement beam, wherein the front and rear ends of the reinforcement beam are symmetrically provided with reinforcement plates, and the positions of the reinforcement plates correspond to the positions of the reinforcement beam. First fixing holes are provided at the upper and lower parts of the reinforcement plates, and the first fixing holes are a through-type structure.
[0007] Preferably, second fixing holes are provided at the upper and lower parts of the reinforcement beam, the second fixing holes are of a through-type structure, and the positions of the second fixing holes correspond to those of the first fixing holes.
[0008] Preferably, a fixing groove is provided inside the reinforcing plate at the opening position of the first fixing hole, the fixing groove is a through-type structure, and the fixing groove is communicated with the first fixing hole.
[0009] Preferably, a countersunk bolt is provided inside the second fixing hole, both ends of the countersunk bolt extend into the inside of the fixing groove, and nuts are provided outside both ends of the countersunk bolt, and the nut is connected to the countersunk bolt through threads.
[0010] Preferably, a filling layer is provided inside the fixing groove near the opening position, and the filling layer is connected to the inner wall of the fixing groove by glue.
[0011] Preferably, carbon fiber cloth is fixedly provided on the outside of the reinforcement plate and the reinforcement beam, and the carbon fiber cloth is respectively connected to the reinforcement plate and the reinforcement beam by glue.
[0012] Preferably, an adhesive layer is provided between the reinforcement plate and the reinforcement beam.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. The utility model can reinforce the reinforcement beam by reinforcing plates and countersunk bolts. When reinforcing, if the surface of the reinforcement beam is uneven, the surface of the reinforcement beam needs to be planed. When there are local small cracks, structural adhesive needs to be poured into the cracks to fill the gaps. At this time, the reinforcement beam and the reinforcement plate are adhered and fixed by the adhesive layer, and the reinforcement plate is polished as a whole to make the upper and lower surfaces of the reinforcement plate smooth. At this time, two rows of first fixing holes slightly larger than the bolt diameter are drilled on both sides of the reinforcement plate, and a second fixing hole is drilled inside the reinforcement beam. The first fixing hole corresponds to the position of the second fixing hole, and then a fixing groove is dug at the opening position of the first fixing hole. The diameter of the fixing groove needs to be larger than the nut. Then, the countersunk bolt is inserted into the first fixing hole on one side and passes through the second fixing hole until one end of the countersunk bolt extends to the first fixing hole on the other side. At this time, the two ends of the countersunk bolt are tightened with nuts to complete the fixation of the reinforcement plate, while reducing the cross-sectional area of the reinforced structure.
[0015] 2. The utility model is provided with a filling layer, which can repair the surface of the reinforcement plate. After the reinforcement plate and the reinforcement beam are fixed, the discarded wood is broken up and mixed with the wood adhesive. The opening of the fixing groove is sealed with the mixed adhesive. After a period of time, the opening of the fixing groove is polished smooth after the adhesive solidifies, thereby avoiding the appearance of holes on the surface of the reinforcement plate, thereby improving the aesthetics of the appearance of the reinforcement plate.
[0016] 3. The utility model can further reinforce the reinforced beam by providing carbon fiber cloth. When pasting the carbon fiber cloth, an annular hoop is used to move on the surface of the carbon fiber cloth to squeeze out all the bubbles inside the carbon fiber cloth through the annular hoop. Then, a brush is used to apply the primer on the surface of the reinforcement plate and the upper and lower ends of the reinforcement beam, and then the carbon fiber cloth is attached to the outside of the reinforcement plate and the reinforcement beam. After the primer is cured, the surface glue is evenly applied on the surface of the carbon fiber cloth again to form a surface glue layer. After confirming that the carbon fiber cloth and the surface glue are completely penetrated, the reinforced beam is further reinforced by the carbon fiber cloth. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 This is a side view of the internal structure of the utility model;
[0019] Figure 3 This is a front view of the internal structure of the utility model;
[0020] Figure 4 For the utility model Figure 2 A partial enlarged view of area A in the middle.
[0021] In the figure: 1. Reinforcement beam; 2. Reinforcement plate; 3. Adhesive layer; 4. Fixing groove; 5. Countersunk bolt; 6. Nut; 7. Carbon fiber cloth; 8. First fixing hole; 9. Second fixing hole; 10. Filling layer. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0023] See also Figure 1-4 The utility model provides an embodiment: a carbon fiber green reinforcement structure for a wooden component, including a reinforcement beam 1, and reinforcement plates 2 are symmetrically arranged at the front and rear ends of the reinforcement beam 1. The reinforcement plates 2 correspond to the positions of the reinforcement beam 1, and first fixing holes 8 are arranged at the upper and lower parts of the reinforcement plate 2. The first fixing hole 8 is a through-type structure.
[0024] When in use, when reinforcing, if the surface of the reinforcing beam 1 is uneven, the surface of the reinforcing beam 1 needs to be planed. When there are local small cracks, structural adhesive needs to be poured into the cracks to fill the gaps. At this time, the reinforcing beam 1 and the reinforcing plate 2 are glued and fixed by the adhesive layer 3, and the reinforcing plate 2 is polished as a whole to make the upper and lower surfaces of the reinforcing plate 2 smooth. At this time, two rows of first fixing holes 8 slightly larger than the diameter of the countersunk bolts 5 are drilled on both sides of the reinforcing plate 2, and at the same time, second fixing holes 9 are drilled inside the reinforcing beam 1. The positions of the first fixing holes 8 and the second fixing holes 9 correspond to each other. Then, a fixing groove 4 is dug out at the opening position of the first fixing hole 8. The diameter of the fixing groove 4 needs to be larger than the nut 6. Then, the countersunk bolt 5 is inserted into the first fixing hole 8 on one side and passes through the second fixing hole 9 until one end of the countersunk bolt 5 extends to the first fixing hole 8 on the other side. At this time, the two ends of the countersunk bolt 5 are tightened with nuts 6 to complete the fixation of the reinforcing plate 2.
[0025] See also Figure 2 Second fixing holes 9 are provided at the upper and lower parts of the reinforcement beam 1. The second fixing holes 9 are of a through-type structure. The second fixing holes 9 correspond to the positions of the first fixing holes 8, so that the countersunk bolts 5 can pass through the entire reinforcement beam 1 through the second fixing holes 9.
[0026] See also Figure 2 A fixing groove 4 is provided inside the reinforcing plate 2 at the opening position of the first fixing hole 8. The fixing groove 4 is a through-type structure and is connected to the first fixing hole 8, making it convenient to install the countersunk bolt 5 through the first fixing hole 8.
[0027] See also Figure 2A countersunk bolt 5 is provided inside the second fixing hole 9, and both ends of the countersunk bolt 5 extend to the inside of the fixing groove 4. Nuts 6 are provided on the outside of both ends of the countersunk bolt 5. The nuts 6 are connected to the countersunk bolt 5 through threads, so that the reinforcement plate 2 can be fixed on the reinforcement beam 1 through the cooperation between the countersunk bolt 5 and the nut 6.
[0028] See also Figure 2 A filling layer 10 is provided inside the fixing groove 4 near the opening position, and the filling layer 10 is connected to the inner wall of the fixing groove 4 by glue, wherein the filling layer 10 is a mixture of waste wood and wood adhesive, which avoids the appearance of holes in the reinforcement plate 2, thereby improving the aesthetics of the reinforcement plate 2.
[0029] See also Figure 2 and Figure 3 The outside of the reinforcement plate 2 and the reinforcement beam 1 are fixed with carbon fiber cloth 7, and the carbon fiber cloth 7 is connected to the reinforcement plate 2 and the reinforcement beam 1 respectively by glue, so that the reinforcement plate 2 and the reinforcement beam 1 can be protected by the carbon fiber cloth 7, thereby improving the stability of the reinforcement of the reinforcement beam 1.
[0030] See also Figure 1 and Figure 2 An adhesive layer 3 is provided between the reinforcing plate 2 and the reinforcing beam 1, so as to facilitate the preliminary fixation of the reinforcing plate 2 and the reinforcing beam 1 through the adhesive layer 3, thereby avoiding the position displacement of the reinforcing plate 2 when the reinforcing plate 2 is processed.
[0031] Working principle: After the reinforcement plate 2 and the reinforcement beam 1 are fixed, the discarded wood is crushed and mixed with the wood adhesive. The opening of the fixing groove 4 is sealed with the mixed adhesive. After a period of time, the opening of the fixing groove 4 is polished smooth after the adhesive solidifies. When the carbon fiber cloth 7 is pasted, an annular hoop is used to move on the surface of the carbon fiber cloth 7. All bubbles inside the carbon fiber cloth 7 are squeezed out through the annular hoop. The base glue is applied to the surface of the reinforcement plate 2 and the upper and lower ends of the reinforcement beam 1 with a brush. The carbon fiber cloth 7 is then attached to the outside of the reinforcement plate 2 and the reinforcement beam 1. When the base glue is cured, the surface glue is evenly applied to the surface of the carbon fiber cloth 7 again to form a surface glue layer. Confirm that the carbon fiber cloth 7 and the surface glue are completely penetrated.
[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
Claims
1. A carbon fiber green reinforcement structure for wood components, comprising a reinforcement beam (1), characterized in that: The front and rear ends of the reinforcement beam (1) are symmetrically provided with reinforcement plates (2), the positions of the reinforcement plates (2) and the reinforcement beam (1) correspond to each other, and the upper and lower parts of the reinforcement plates (2) are provided with first fixing holes (8), and the first fixing holes (8) are of a through-type structure.
2. The carbon fiber green reinforcement structure for wood components according to claim 1, characterized in that: Second fixing holes (9) are provided at the upper and lower parts of the reinforcement beam (1); the second fixing holes (9) are of a through-type structure; and the positions of the second fixing holes (9) and the first fixing holes (8) correspond.
3. The carbon fiber green reinforcement structure for wood components according to claim 2, characterized in that: A fixing groove (4) is provided inside the reinforcing plate (2) at the opening position of the first fixing hole (8); the fixing groove (4) is a through-type structure, and the fixing groove (4) is in communication with the first fixing hole (8).
4. The carbon fiber green reinforcement structure for wood components according to claim 3, characterized in that: A countersunk bolt (5) is provided inside the second fixing hole (9), both ends of the countersunk bolt (5) extend into the interior of the fixing groove (4), and nuts (6) are provided outside both ends of the countersunk bolt (5), and the nuts (6) are connected to the countersunk bolt (5) through threads.
5. The carbon fiber green reinforcement structure for wood components according to claim 4, characterized in that: A filling layer (10) is provided inside the fixing groove (4) near the opening position, and the filling layer (10) is connected to the inner wall of the fixing groove (4) by glue.
6. The carbon fiber green reinforcement structure for wood components according to claim 5, characterized in that: Carbon fiber cloth (7) is fixedly provided on the outside of the reinforcement plate (2) and the reinforcement beam (1), and the carbon fiber cloth (7) is respectively connected to the reinforcement plate (2) and the reinforcement beam (1) by glue.
7. The carbon fiber green reinforcement structure for wood components according to claim 6, characterized in that: An adhesive layer (3) is provided between the reinforcement plate (2) and the reinforcement beam (1).
Citation Information
Patent Citations
Reinforcing structure of historic building wood component
CN218234454U