Anti-cracking prefabricated wallboard

Abstract

The utility model discloses a kind of anti-cracking prefabricated wallboards, it is related to prefabricated wallboard technical field, including prefabricated wallboard main part, the inside of prefabricated wallboard main part is provided with anti-cracking reinforcement component, the anti-cracking reinforcement component is used to enhance the anti-cracking performance of the prefabricated wallboard main part;The anti-cracking reinforcement component includes the fiber mesh layer being set in the inside of prefabricated wallboard main part, the inside of the fiber mesh layer is provided with staggered woven glass fiber layer, the inside of the glass fiber layer is provided with basalt fiber layer, the inside of the basalt fiber layer is provided with nanometer carbon fiber layer.The utility model constructs multilayer composite anti-cracking reinforcement component in the inside of prefabricated wallboard main part, realizes the significant promotion of wallboard overall anti-cracking performance, can solve the problem that traditional prefabricated wallboard is limited by single reinforcing material performance, leads to prone to crack, affects service life and building safety.

Description

Technical Field

[0001] This utility model relates to the field of prefabricated wall panel technology, specifically to a crack-resistant prefabricated wall panel. Background Technology

[0002] Crack-resistant precast wall panels can effectively resist wall cracking caused by factors such as temperature changes and foundation settlement, improving the overall stability of the wall. They also have good sound and heat insulation properties, improving indoor environmental comfort. Furthermore, prefabrication can shorten the on-site construction cycle, improve construction efficiency, reduce construction waste, meet the requirements of green building development, and are suitable for various scenarios such as interior and exterior wall partitions in buildings, providing a reliable wall solution for construction projects.

[0003] Patent document CN220790387U discloses a crack-resistant precast wall panel. This document mainly considers that when existing precast panels are spliced, they are generally spliced ​​by overlapping or by using concave slots and convex inserts. On the one hand, the splicing stability is not good, and on the other hand, there are large gaps when splicing. Therefore, after a long period of use, cracks are easy to appear at the splicing gaps, which will affect the use of the precast wall panel. It does not take into account the problem that traditional precast wall panels are prone to cracking due to the limited performance of a single reinforcing material, which affects the service life and building safety. Summary of the Invention

[0004] The purpose of this utility model is to provide a crack-resistant precast wall panel to solve the problem mentioned in the background art that traditional precast wall panels are prone to cracking due to the limited performance of a single reinforcing material, which affects service life and building safety.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crack-resistant precast wall panel, comprising a precast wall panel body, wherein a crack-resistant reinforcing component is provided inside the precast wall panel body, the crack-resistant reinforcing component being used to enhance the crack resistance of the precast wall panel body;

[0006] The crack-resistant reinforcement component includes a fiber mesh fabric layer disposed inside the precast wall panel body, the fiber mesh fabric layer having an interwoven glass fiber layer inside, the glass fiber layer having a basalt fiber layer inside, and the basalt fiber layer having a nano-scale carbon fiber layer inside.

[0007] Preferably, the surface of the nanoscale carbon fiber layer is coated with a silane coupling agent layer.

[0008] Preferably, elastic buffer components are provided on both sides of the precast wall panel body. The elastic buffer components are used to buffer external forces and prevent the edges of the precast wall panel body from cracking.

[0009] Preferably, the elastic buffer assembly includes honeycomb-shaped rubber buffer strips disposed in the grooves on both sides of the precast wall panel body.

[0010] Preferably, the honeycomb rubber buffer strip is filled with elastic sponge.

[0011] Preferably, the honeycomb rubber buffer strip has multiple hemispherical protrusions on the side surface near the main body of the precast wall panel.

[0012] Preferably, the precast wall panel body has hemispherical grooves that are adapted to the hemispherical protrusions in the grooves on both sides of its main body.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model significantly improves the overall crack resistance of precast wall panels by constructing a multi-layered composite crack-resistant reinforcement component inside the main body of the precast wall panel. The component is based on a fiber mesh fabric as the basic framework and is woven and superimposed with glass fiber layer, basalt fiber layer and nano-scale carbon fiber layer. The glass fiber layer has good tensile strength and chemical stability, which can effectively disperse the internal stress of the wall panel. The basalt fiber layer further enhances the structural toughness of the wall panel with its excellent high temperature resistance and fatigue resistance. The nano-scale carbon fiber layer provides excellent deformation resistance to the wall panel due to its high strength and high modulus characteristics. The three layers of materials work together to form a three-dimensional reinforcement network. Compared with the prior art, this multi-layered composite structure can improve the crack resistance of precast wall panels under the action of external factors such as temperature changes and foundation settlement. Therefore, it can solve the problem that traditional precast wall panels are prone to cracking due to the limited performance of a single reinforcement material, which affects the service life and building safety.

[0015] 2. This utility model achieves effective protection of the edges of the precast wall panel by setting elastic buffer components on both sides of the main body. The component consists of honeycomb rubber buffer strips, elastic sponges, hemispherical protrusions, and grooves. The honeycomb rubber buffer strips utilize their unique honeycomb structure to absorb energy through the deformation of the honeycomb units when subjected to external impact or compression. The elastic sponges inside further enhance the buffering effect, allowing the force to be evenly distributed. The hemispherical protrusions on the honeycomb rubber buffer strips cooperate with the hemispherical grooves in the grooves of the main body of the precast wall panel, which not only enhances the connection stability between the buffer strip and the wall panel, but also forms secondary buffering when subjected to force. Compared with the prior art, this elastic buffer component can improve the ability of the precast wall panel edges to resist external impacts. Therefore, it can solve the problem that traditional precast wall panels are prone to damage and cracking during transportation and installation due to the lack of effective edge protection measures, which increases construction costs and the risk of construction delays. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the crack-resistant reinforcement component structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the elastic buffer component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the hemispherical groove structure of this utility model.

[0021] In the diagram: 1. Precast wall panel main body; 2. Fiber mesh fabric layer; 3. Glass fiber layer; 4. Basalt fiber layer; 5. Nanoscale carbon fiber layer; 6. Silane coupling agent layer; 7. Honeycomb rubber buffer strip; 8. Elastic sponge; 9. Hemispherical protrusion; 10. Hemispherical groove. 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] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0024] Please see Figure 1 , Figure 2 and Figure 3 The present invention provides an embodiment of a crack-resistant precast wall panel, comprising a precast wall panel body 1, wherein a crack-resistant reinforcing component is provided inside the precast wall panel body 1, the crack-resistant reinforcing component being used to enhance the crack resistance of the precast wall panel body 1;

[0025] The crack-resistant reinforcement component includes a fiber mesh layer 2 disposed inside the precast wall panel body 1, an interwoven glass fiber layer 3 disposed inside the fiber mesh layer 2, a basalt fiber layer 4 disposed inside the glass fiber layer 3, and a nano-scale carbon fiber layer 5 disposed inside the basalt fiber layer 4.

[0026] The surface of the nanoscale carbon fiber layer 5 is coated with a silane coupling agent layer 6.

[0027] Furthermore, the precast wall panel body 1 serves as the basic structure, bearing the entire function of the wall panel, while the crack-resistant reinforcement component installed inside it is the key to improving crack resistance. The crack-resistant reinforcement component uses fiber mesh fabric 2 as the base, which has good flexibility and stress dispersion capabilities, and can initially form a stress dispersion network inside the wall panel.

[0028] Inside the fiber mesh layer 2, glass fiber layers 3 are interwoven. With its high tensile strength and chemical stability, the glass fiber layer 3 can effectively disperse the stress to a larger area when the precast wall panel body 1 is subjected to stress caused by external forces or environmental factors, thus avoiding stress concentration that could lead to cracking of the wall panel. Its chemical stability also ensures that the performance of the wall panel will not be reduced due to the corrosion of chemical substances in the environment during long-term use.

[0029] The basalt fiber layer 4 set inside the glass fiber layer 3 further enhances the performance of the wall panel. Basalt fiber has excellent high temperature resistance and fatigue resistance, can withstand the thermal expansion and contraction stress caused by temperature changes, and effectively resists fatigue damage caused by repeated stress during long-term use, thus improving the toughness and durability of the wall panel structure.

[0030] The innermost nano-carbon fiber layer 5, due to its high strength and high modulus, provides the wall panel with excellent deformation resistance. The nano-carbon fiber layer 5 can enhance the structural strength of the wall panel at the microscopic level, and can limit the degree of deformation of the wall panel even when subjected to large external forces, thereby reducing the possibility of crack formation. In addition, the surface of the nano-carbon fiber layer 5 is coated with a silane coupling agent layer 6, which can significantly improve the bonding performance between the nano-carbon fiber layer 5 and other material layers, so that each material layer is tightly bonded and works together to prevent cracking, forming a complete and efficient three-dimensional reinforcement network, which comprehensively improves the crack resistance of the precast wall panel body 1.

[0031] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5One embodiment of this utility model is a crack-resistant precast wall panel, wherein elastic buffer components are provided on both sides of the precast wall panel body 1. The elastic buffer components are used to buffer external forces and prevent the edges of the precast wall panel body 1 from cracking.

[0032] The elastic buffer assembly includes honeycomb rubber buffer strips 7 disposed in the grooves on both sides of the precast wall panel body 1.

[0033] The honeycomb rubber buffer strip 7 is filled with elastic sponge 8.

[0034] The honeycomb rubber buffer strip 7 has multiple hemispherical protrusions 9 on the side surface near the precast wall panel body 1.

[0035] The precast wall panel body 1 has corresponding hemispherical grooves 10 on both sides of the edge grooves that are adapted to the hemispherical protrusions 9.

[0036] Furthermore, the elastic buffer components set on both sides of the precast wall panel body 1 are specifically designed to buffer external forces and protect the edges of the wall panel. The basic structure of the elastic buffer components is a honeycomb rubber buffer strip 7 set in the grooves on both sides of the precast wall panel body 1. The unique honeycomb structure of the honeycomb rubber buffer strip 7 gives it good elasticity and energy absorption capacity. When external impact or squeezing force is applied to the edge of the wall panel, the honeycomb unit of the honeycomb rubber buffer strip 7 will deform, absorbing a large amount of external force energy through deformation, reducing the direct transmission of external force to the edge of the precast wall panel body 1, thereby reducing the risk of edge cracking.

[0037] The elastic sponge 8 filled inside the honeycomb rubber buffer strip 7 further enhances the cushioning effect. The elastic sponge 8 is soft and elastic, and can further disperse and absorb external forces when the honeycomb rubber buffer strip 7 deforms, so that the force is distributed more evenly and avoids excessive local stress.

[0038] Meanwhile, the honeycomb rubber buffer strip 7 has multiple hemispherical protrusions 9 on one side of the precast wall panel body 1, which correspond to hemispherical grooves 10 in the grooves on both sides of the precast wall panel body 1. The hemispherical protrusions 9 and hemispherical grooves 10 are mutually compatible. During installation, the hemispherical protrusions 9 are embedded in the hemispherical grooves 10, which not only enhances the connection stability between the honeycomb rubber buffer strip 7 and the precast wall panel body 1 and prevents the buffer strip from falling off or shifting during use, but also allows the deformation of the hemispherical structure to form a secondary buffer when subjected to external force, further weakening the impact of external force on the edge of the wall panel, and protecting the edge of the precast wall panel body 1 in all directions to prevent cracking.

[0039] Working principle: In practical applications, the working principle of this crack-resistant precast wall panel revolves around the crack-resistant reinforcement component and the elastic buffer component. The two work together to effectively improve the crack resistance and edge protection capabilities of the wall panel.

[0040] When the precast wall panel 1 is subjected to factors such as temperature changes, foundation settlement, or external pressure during construction or use, stress will be generated inside the wall panel. At this time, the crack-resistant reinforcement components begin to play a role. The fiber mesh layer 2 serves as the basic frame and first disperses the local stress. Then, the interwoven glass fiber layer 3, with its high tensile strength, further diffuses the stress to the surrounding area, reducing the stress concentration. The basalt fiber layer 4, under temperature fluctuations or repeated stress, prevents the expansion of cracks caused by thermal expansion and contraction or fatigue damage, thanks to its high temperature resistance and fatigue resistance.

[0041] The innermost nano-carbon fiber layer 5, with its high strength and high modulus, restricts the deformation of the wall panel and can maintain the structural stability of the wall panel even under large stress. The silane coupling agent layer 6 on the surface of the nano-carbon fiber layer 5 ensures that the material layers are tightly bonded, so that the crack-resistant reinforcement components form a whole, jointly resisting stress and preventing cracks from forming.

[0042] During the transportation, installation and use of the wall panel, the edges are easily subjected to external impacts such as collisions or squeezing. At this time, the elastic buffer component plays a role. When the external force is applied to the edge of the precast wall panel body 1, the honeycomb rubber buffer strip 7 takes the brunt. Its honeycomb structure will quickly undergo elastic deformation. Through the compression of the honeycomb unit, a large amount of external force energy is absorbed, weakening the impact force. The elastic sponge 8 filled inside further buffers and flexibly disperses the remaining external force, so that the force is evenly transmitted.

[0043] Meanwhile, the hemispherical protrusions 9 on the honeycomb rubber buffer strip 7 cooperate with the hemispherical grooves 10 in the grooves of the precast wall panel body 1. The hemispherical structure deforms when subjected to force, forming a secondary buffer, further dispersing the external force and preventing the external force from acting directly on the edge of the wall panel. Through this multi-level buffering mechanism, the elastic buffer component effectively protects the edge of the precast wall panel body 1 and avoids the edge from cracking due to external impact.

[0044] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A crack-resistant precast wall panel, comprising a precast wall panel body (1), characterized in that: The precast wall panel body (1) is provided with a crack-resistant reinforcement component inside, which is used to enhance the crack resistance of the precast wall panel body (1); The crack-resistant reinforcement component includes a fiber mesh fabric layer (2) disposed inside the precast wall panel body (1), an interwoven glass fiber layer (3) disposed inside the fiber mesh fabric layer (2), a basalt fiber layer (4) disposed inside the glass fiber layer (3), and a nano-scale carbon fiber layer (5) disposed inside the basalt fiber layer (4).

2. The crack-resistant precast wall panel according to claim 1, characterized in that: The surface of the nanoscale carbon fiber layer (5) is coated with a silane coupling agent layer (6).

3. The crack-resistant precast wall panel according to claim 1, characterized in that: The precast wall panel body (1) is provided with elastic buffer components on both sides of its edges. The elastic buffer components are used to buffer external forces and prevent the edges of the precast wall panel body (1) from cracking.

4. A crack-resistant precast wall panel according to claim 3, characterized in that: The elastic buffer assembly includes honeycomb rubber buffer strips (7) disposed in the grooves on both sides of the precast wall panel body (1).

5. A crack-resistant precast wall panel according to claim 4, characterized in that: The honeycomb rubber buffer strip (7) is filled with elastic sponge (8).

6. A crack-resistant precast wall panel according to claim 5, characterized in that: The honeycomb rubber buffer strip (7) has multiple hemispherical protrusions (9) on the side surface near the precast wall panel body (1).

7. A crack-resistant precast wall panel according to claim 6, characterized in that: The precast wall panel body (1) has hemispherical grooves (10) on both sides of the edge grooves corresponding to the hemispherical protrusions (9).

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