Anti-cracking structure of indoor decorative suspended ceiling
By installing joint fittings and fiber mesh structures at the joints of gypsum boards, the problem of cracking at the joints of gypsum boards was solved, achieving stability and anti-cracking effect of the plaster layer, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING TIANTAN DECORATION & ENG CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-17
AI Technical Summary
After a certain number of years of use, the joints of gypsum board are prone to cracking, which can cause the plaster layer to fall off, making maintenance labor-intensive, time-consuming, and costly.
Joint fittings are installed at the joints of gypsum boards, including an upper joint support plate, a joint connecting plate, and a lower joint support. These, along with a layer of fabric-based adhesive tape and a fiber mesh, form a crack-resistant structure, enhancing connection stability and structural strength.
It effectively prevents cracking at the joints of gypsum board, improves the adhesion of the plaster layer, and reduces maintenance costs and time.
Smart Images
Figure CN224133961U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of interior decoration, specifically to a crack-resistant structure for interior decorative ceilings. Background Technology
[0002] Gypsum board is a material made primarily from building gypsum. It is a lightweight, high-strength, thin, and easy-to-process building material with good sound insulation, heat insulation, and fire resistance properties, making it one of the new lightweight building materials currently under development. Due to its light weight and ease of shaping, gypsum board is widely used in the interior decorative ceiling industry. When using gypsum board for ceilings, plastering and painting are required on its surface. Because of the gaps at the joints, after a certain period of use, slight displacement of the light steel keel can cause the plaster layer at these joints to crack and peel off. Maintenance of the cracked gypsum board requires removing the plaster layer before re-plastering, which is not only labor-intensive and time-consuming but also increases maintenance costs. Therefore, to address the aforementioned problems, it is necessary to propose a crack-resistant structure for interior decorative ceilings. Summary of the Invention
[0003] To address the aforementioned shortcomings of existing technologies, this utility model provides a crack-resistant structure for interior decorative ceilings.
[0004] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows: it includes a joint component installed at the splicing seam, a cloth-based adhesive tape layer is installed under the spliced gypsum board, a joint anti-cracking layer is installed under the cloth-based adhesive tape layer, and a plaster layer is installed under the joint anti-cracking layer. The joint anti-cracking layer includes at least one layer of fiber mesh. The joint component includes an upper joint support plate, a joint connecting plate, and a lower joint support part. The upper joint support plate and the lower joint support part are respectively fixed to the upper and lower sides of the joint connecting plate.
[0005] Furthermore, the bottom joint of the spliced gypsum board is provided with a chamfer that matches the lower support part of the joint. The cross-sectional area of the lower support part of the joint is triangular, and the bottom of the lower support part of the joint is flush with the bottom of the spliced gypsum board.
[0006] Furthermore, the cloth-based adhesive tape layer is made of aluminum alloy.
[0007] Furthermore, the anti-cracking layer at the splice seam is a single-layer fiber mesh.
[0008] Furthermore, the anti-cracking layer for the splice seam includes two layers of fiber mesh and an anti-cracking plaster layer, with the anti-cracking plaster layer placed between the two layers of fiber mesh.
[0009] The beneficial effects of this utility model are as follows:
[0010] The joint component of this utility model includes an upper joint support plate, a joint connecting plate, and a lower joint support part. The upper joint support plate supports the neck of the spliced gypsum board. The upper joint support plate pulls the lower joint support part upward through the joint connecting plate. The lower joint support part cooperates with the chamfer of the spliced gypsum board to support the bottom of the joint of the spliced gypsum board, thereby ensuring the stability of the joint between adjacent spliced gypsum boards and ensuring that the subsequent plaster layer is not prone to cracking.
[0011] This invention provides a cloth-based adhesive tape layer and a joint crack prevention layer at the joint of adjacent spliced gypsum boards. The joint crack prevention layer includes a fiber mesh. The cloth-based adhesive tape layer and the fiber mesh can further enhance the structural strength of the plaster layer adhesion, ensuring the structural strength at the joint and making the plaster layer less prone to cracking. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model;
[0013] Figure 2 This is a structural schematic diagram of the joint component;
[0014] The symbols for each component are as follows:
[0015] 1. Spliced gypsum board; 2. Joint fittings; 21. Upper support plate for joint; 22. Joint connecting plate; 23. Lower support part for joint; 3. Fabric-based adhesive tape layer; 4. Anti-cracking layer; 5. Plaster layer. Detailed Implementation
[0016] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.
[0017] like Figure 1 As shown, this invention is used in conjunction with the joints of two spliced gypsum boards 1. Its features include a joint piece 2 disposed at the joint, a cloth-based adhesive tape layer 3 disposed below the spliced gypsum board 1, a joint crack-resistant layer 4 disposed below the cloth-based adhesive tape layer 3, and a plaster layer 5 disposed below the joint crack-resistant layer 4. The crack-resistant layer 5 is a fiber mesh, and the joint crack-resistant layer 4 includes at least one layer of fiber mesh. In this embodiment, it is preferred to have one layer of fiber mesh.
[0018] like Figure 2As shown, the joint component 2 includes an upper joint support plate 21, a joint connecting plate 22, and a lower joint support part 23. The upper joint support plate 21 and the lower joint support part 23 are respectively fixed to the upper and lower sides of the joint connecting plate 22. The upper support plate 21 supports the spliced gypsum board 1 above it. The joint connecting plate 22 pulls on the lower joint support part 23, thereby supporting the bottom connection of the two spliced gypsum boards 1, making the support at the connection of the spliced gypsum board 1 more stable and effectively preventing cracking at the joint. The cloth tape layer 3 is made of aluminum alloy, which is lightweight and has a low cost. The joint component 2 is made of aluminum alloy. The thickness of the upper support plate 21 and the joint connecting plate 22 is less than 1mm. The cross-section of the lower support part 23 is an inverted isosceles right triangle. The chamfer at the bottom connection of the spliced gypsum board 1 is a 45-degree chamfer. The width and depth of the chamfer are the same, and the width of the chamfer ranges from 0.5cm to 1cm.
[0019] The bottom joint of the gypsum board 1 has a chamfer that mates with the lower support part 23 of the joint. The lower support part 23 has a triangular cross-sectional area, and its bottom is flush with the bottom of the gypsum board 1. By engaging the lower support part 23 with the chamfer of the gypsum board 1, the gypsum board 1 is supported and fixed.
[0020] Example 2
[0021] The difference between Example 2 and Example 1 is that the structure of the anti-cracking layer 4 of the splice seam is different. The anti-cracking layer 4 of the splice seam includes two layers of fiber mesh and an anti-cracking plaster layer. The anti-cracking plaster layer is placed between the two layers of fiber mesh. The double-layer fiber mesh can further improve the structural strength of the anti-cracking layer 4 of the splice seam, and at the same time facilitate the smoothing of the plaster layer 5.
[0022] Working process and principle: The spliced gypsum board 1 is installed using a light steel keel. When installing the spliced gypsum board 1, the joint piece 2 is first installed on the light steel keel. Alternatively, the support plate 21 on the joint of the joint piece 2 can be pressed between the spliced gypsum board 1 and the light steel keel. Then, the spliced gypsum board 1 is installed. When installing the spliced gypsum board 1, the bottom edge of the spliced gypsum board 1 is first chamfered. Then, the spliced gypsum board 1 and the joint connecting plate 22 of the joint piece 2 are attached. Finally, the spliced gypsum board 1 is fixed to the light steel keel. After the spliced gypsum board 1 is installed, a cloth-based adhesive tape layer 3, a joint crack prevention layer 4, and a plaster layer 5 are laid sequentially on the bottom of the spliced gypsum board 1. The fiber mesh in the cloth-based adhesive tape layer 3 and the joint crack prevention layer 4 has strong structural strength and can effectively prevent cracking at the joint. At the same time, the joint support part 23 of the joint component 2 can cooperate with the bottom edge chamfer of the spliced gypsum board 1 to support and reinforce the joint of adjacent spliced gypsum board 1, so that the cloth-based adhesive tape layer 3 and the joint crack prevention layer 4 located at the joint are not easy to shift, and the plaster layer 5 has a better crack prevention effect.
Claims
1. A crack prevention structure for a suspended ceiling, which is used in conjunction with a joint between two spliced gypsum boards (1), characterized in that, It includes a joint piece (2) installed at the splicing seam, a cloth-based adhesive tape layer (3) is provided under the splicing gypsum board (1), a splicing seam anti-cracking layer (4) is provided under the cloth-based adhesive tape layer (3), a plaster layer (5) is provided under the splicing seam anti-cracking layer (4), and the splicing seam anti-cracking layer (4) includes at least one layer of fiber mesh; The joint component (2) includes an upper joint support plate (21), a joint connecting plate (22), and a lower joint support part (23). The upper joint support plate (21) and the lower joint support part (23) are respectively fixed on the upper and lower sides of the joint connecting plate (22).
2. The anti-cracking structure of a decorative ceiling according to claim 1, wherein The bottom connection of the spliced gypsum board (1) is provided with a chamfer that matches the lower support part (23) of the joint. The cross-sectional area of the lower support part (23) of the joint is triangular, and the bottom of the lower support part (23) of the joint is flush with the bottom of the spliced gypsum board (1).
3. The anti-cracking structure of a decorative ceiling according to claim 1, wherein The anti-cracking layer (4) for the splicing seam.
4. The anti-cracking structure for a ceiling of an indoor decoration according to claim 1, wherein The anti-cracking layer (4) of the splice seam includes two layers of fiber mesh and an anti-cracking plaster layer, wherein the anti-cracking plaster layer is disposed between the two layers of fiber mesh.
5. The anti-cracking structure of a decorative ceiling according to claim 1, wherein The cloth-based adhesive tape layer (3) is made of aluminum alloy.