Anti-cracking structure of indoor gypsum board suspended ceiling

By using reinforced gypsum board and a sloping design in the gypsum board ceiling, combined with joint compound and cloth tape for fixation, the cracking problem of gypsum board ceiling under humidity changes was solved, achieving stability and aesthetics at the joints.

CN223793759UActive Publication Date: 2026-01-13ANHUI JIANGKE CONSTRUCTION & DECORATION ENGINEERING CO LTD
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Patent Information

Application Number
CN202520354366.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-01-13
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

In existing technologies, gypsum board ceilings are prone to cracking when humidity changes, and existing crack prevention measures cannot effectively relieve stress, causing the putty to crack along the joints, affecting the appearance.

Method used

The design employs reinforced gypsum board and a sloping structure to form an inverted V-shaped filling cavity, which is then filled with caulking gypsum mortar and reinforced with cloth tape and mesh fabric. This is then fixed by a plaster layer to form a stable connection structure.

Benefits of technology

It improves the stability of gypsum board joints, reduces the risk of cracking, and reduces later maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an indoor plasterboard suspended ceiling anti-cracking structure which comprises a first plasterboard and a second plasterboard, a reinforcing plasterboard is fixedly arranged on the top of the first plasterboard and the top of the second plasterboard, slopes are arranged on one side of the bottom of the first plasterboard and one side of the bottom of the second plasterboard, and the reinforcing plasterboard is arranged on the slope. The two slopes are in butt joint to form an inverted-V-shaped filling cavity, anti-cracking layers are arranged at the bottoms of the first gypsum board and the second gypsum board, first plaster layers are laid at the bottoms of the anti-cracking layers, gridding cloth is laid at the bottoms of the first plaster layers, and second plaster layers are laid at the bottoms of the gridding cloth. The filling cavity is filled with caulking gypsum mud, and the anti-cracking layer is a cloth-based adhesive tape. The anti-cracking structure of the indoor gypsum board suspended ceiling has the advantages that the cracking risk at the joints of the gypsum boards is reduced, and the later maintenance cost is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of decoration technology, and in particular to a structure for preventing cracking of indoor gypsum board ceilings. Background Technology

[0002] In current decoration and construction, when gypsum board is used to create shapes, especially in the case of suspended ceilings, a seam will appear when two pieces of gypsum board are joined together in parallel. Because gypsum board has many micropores and has a "breathing" characteristic, when the humidity in the air changes, moisture is quickly absorbed by the gypsum board and can also be quickly dissipated. This breathing can easily cause cracks in the gypsum board later on.

[0003] In the current interior decoration field, joint compound is commonly used in combination with fiberglass mesh to prevent cracking at the joints of plasterboard. However, because fiberglass is too soft and most putty is a rigid system, it cannot evenly release the stress of the expansion and contraction of the board. Instead, it releases the stress directly at the joint, causing the putty to crack along the joint of the two plasterboards in a line, affecting the aesthetics of the ceiling joint.

[0004] It should be noted that the information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model, and should not be regarded as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Therefore, the above content falls within the scope of the inventor's technical knowledge and does not necessarily constitute prior art. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a structure for preventing cracking of indoor gypsum board ceiling, including a first gypsum board and a second gypsum board, with a reinforcing gypsum board fixedly installed on the top of the first gypsum board and the second gypsum board, and a slope on one side of the bottom of the first gypsum board and the second gypsum board, the two slopes forming an inverted V-shaped filling cavity after being joined together, with an anti-crack layer provided at the bottom of the first gypsum board and the second gypsum board, a first plaster layer laid at the bottom of the anti-crack layer, a mesh cloth laid at the bottom of the first plaster layer, and a second plaster layer laid at the bottom of the mesh cloth.

[0008] Preferably, the cavity is filled with caulking plaster.

[0009] Preferably, the crack-resistant layer is a cloth-based adhesive tape.

[0010] Preferably, the top of the reinforced gypsum board is provided with a connecting plate, both sides of the connecting plate are provided with clamping parts, and the bottom of the clamping parts is provided with a fixing part.

[0011] Preferably, the top of the connecting plate is provided with a plurality of drywall bolts, which are connected to the ceiling joists.

[0012] Preferably, a plurality of first fixing bolts are provided on one side of the clamping part, and the first fixing bolts are connected to one side of the reinforcing gypsum board.

[0013] Preferably, the fixing part is provided with a plurality of second fixing bolts, which are connected to the top of the first gypsum board and the second gypsum board.

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

[0015] This indoor gypsum board ceiling anti-cracking structure uses reinforced gypsum board to connect and fix the first and second gypsum boards. The bottom of the first and second gypsum boards are sloped, and the two slopes meet to form a triangular shape. The joint is then filled with joint compound to increase the stability of the joint between the first and second gypsum boards. After filling, the gypsum board is fixed to the bottom of the first and second gypsum boards with cloth tape. The cloth tape is then fixed with the first plaster layer, and then the mesh cloth is fixed to the bottom of the first plaster layer. Finally, the second plaster layer is applied to the mesh cloth, thereby reducing the risk of cracking at the joint between the first and second gypsum boards and reducing later maintenance costs.

[0016] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0017] The technical solution of this application will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of a preferred embodiment of the anti-cracking structure for indoor gypsum board ceilings provided by this utility model;

[0020] Figure 2 This is a schematic diagram showing the connection between the first gypsum board and the second gypsum board in this utility model.

[0021] Figure 3 This is a schematic diagram of the connecting plate shown in this utility model.

[0022] Numbered in the diagram: 1. First gypsum board; 2. Second gypsum board; 3. Reinforcing gypsum board; 4. Slope; 5. Filling cavity; 6. Crack-resistant layer; 7. First plaster layer; 8. Mesh cloth; 9. Second plaster layer; 10. Connecting plate; 11. Clamping part; 12. Fixing part; 13. Drywall bolt; 14. First fixing bolt; 15. Second fixing bolt. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0026] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] See Figures 1-3A crack-prevention structure for indoor gypsum board ceilings includes a first gypsum board 1 and a second gypsum board 2. A reinforcing gypsum board 3 is fixedly installed on the top of the first gypsum board 1 and the second gypsum board 2. A slope 4 is provided on one side of the bottom of the first gypsum board 1 and the second gypsum board 2. The two slopes 4 are joined together to form an inverted V-shaped filling cavity 5. A crack-prevention layer 6 is provided at the bottom of the first gypsum board 1 and the second gypsum board 2. A first plaster layer 7 is laid at the bottom of the crack-prevention layer 6. A mesh cloth 8 is laid at the bottom of the first plaster layer 7. A second plaster layer 9 is laid at the bottom of the mesh cloth 8.

[0028] The cavity 5 is filled with caulking plaster.

[0029] Crack-resistant layer 6 is a type of cloth-based adhesive tape.

[0030] By reinforcing the connection and fixing of the first gypsum board 1 and the second gypsum board 2 with gypsum board 3, and the bottom of the first gypsum board 1 and the second gypsum board 2 are provided with slopes 4, the two slopes 4 are joined to form a triangular shape, and then the joint is filled with joint filler gypsum mortar into the filling cavity 5 to increase the stability of the joint between the first gypsum board 1 and the second gypsum board 2. After filling, the gypsum board 1 and the second gypsum board 2 are fixed with cloth tape, and the cloth tape is fixed with the first plaster layer 7. Then the mesh cloth 8 is fixed with the bottom of the first plaster layer 7, and then the second plaster layer 9 is scraped onto the mesh cloth 8, thereby reducing the risk of cracking at the joint between the first gypsum board 1 and the second gypsum board 2 and reducing the later maintenance cost.

[0031] The top of the reinforced gypsum board 3 is provided with a connecting plate 10, and both sides of the connecting plate 10 are provided with clamping parts 11, and the bottom of the clamping parts 11 is provided with a fixing part 12.

[0032] The top of the connecting plate 10 is provided with several drywall bolts 13, which are connected to the ceiling joists.

[0033] A plurality of first fixing bolts 14 are provided on one side of the clamping part 11, and the first fixing bolts 14 are connected to one side of the reinforcing gypsum board 3.

[0034] The fixing part 12 is provided with a plurality of second fixing bolts 15, which are connected to the top of the first gypsum board 1 and the second gypsum board 2.

[0035] The connecting plate 10 is fixed to the keel by drywall bolts 13, and clamped to both sides of the reinforcing gypsum board 3 by the clamping part 11. The connecting plate 10 and the reinforcing gypsum board 3 are then installed and fixed by the first fixing bolt 14, and the connecting plate 10 is connected and fixed to the first gypsum board 1 and the second gypsum board 2 by the second fixing bolt 15, which facilitates the installation and fixing of the first gypsum board 1 and the second gypsum board 2.

[0036] In use, the first gypsum board 1 and the second gypsum board 2 are connected and fixed by the reinforced gypsum board 3. The bottom of the first gypsum board 1 and the second gypsum board 2 are provided with slopes 4. The two slopes 4 are joined to form a triangular shape. Then, the joint gypsum putty is filled into the filling cavity 5 to increase the stability of the joint between the first gypsum board 1 and the second gypsum board 2. After filling, the bottom of the first gypsum board 1 and the second gypsum board 2 is fixed with cloth tape. The cloth tape is fixed with the first plaster layer 7. Then, the mesh cloth 8 is fixed to the bottom of the first plaster layer 7. Then, the second plaster layer 9 is scraped on the mesh cloth 8, thereby reducing the risk of cracking at the joint between the first gypsum board 1 and the second gypsum board 2 and reducing the later maintenance cost.

[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0038] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0039] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0040] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A structure for preventing cracking of an indoor gypsum board ceiling, characterized by, The utility model provides a reinforced gypsum board, including first gypsum board (1) and second gypsum board (2), first gypsum board (1) and second gypsum board (2) top fixedly provided with reinforced gypsum board (3), first gypsum board (1) and second gypsum board (2) bottom one side all are seted up with inclined plane (4), two inclined plane (4) are connected and form the filling cavity (5) of inverted V type, first gypsum board (1) and second gypsum board (2) bottom are provided with anti -crack layer (6), anti -crack layer (6) bottom is laid with first plastering layer (7), first plastering layer (7) bottom is provided with and lays with mesh (8), mesh (8) bottom is laid with second plastering layer (9).

2. The indoor gypsum board ceiling cracking prevention structure according to claim 1, characterized by, The filling cavity (5) is filled with jointing gypsum mud.

3. The indoor gypsum board ceiling cracking prevention structure according to claim 1, characterized by, The anti-crack layer (6) is a cloth-based adhesive tape.

4. The indoor gypsum board ceiling cracking prevention structure according to claim 1, characterized by, The reinforced gypsum board (3) is provided with a connecting plate (10) on the top, and the connecting plate (10) is provided with clamping portions (11) on both sides.

5. The indoor gypsum board ceiling cracking prevention structure according to claim 4, characterized by, The connecting plate (10) is provided with a plurality of drywall bolts (13) on the top, and the drywall bolts (13) are connected with the ceiling joist.

6. The indoor gypsum board ceiling cracking prevention structure according to claim 4, wherein The clamping portion (11) is provided with a plurality of first fixing bolts (14) on one side, and the first fixing bolts (14) are connected with one side of the reinforced gypsum board (3).

7. The indoor gypsum board ceiling cracking prevention structure according to claim 4, characterized by The fixing portion (12) is provided with a plurality of second fixing bolts (15) inside, and the second fixing bolts (15) are connected with the top of the first gypsum board (1) and the second gypsum board (2).