Putty anti-cracking structure

By using a putty crack prevention structure with movable and elastic components in the gypsum board ceiling, the cracking problem caused by thermal expansion and contraction stress in the putty is solved, achieving a stable connection and aesthetic effect between the gypsum board and the putty.

CN223964070UActive Publication Date: 2026-03-03BEIJING CHIDORI XINYUAN TRADING CO LTD
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Patent Information

Application Number
CN202520141100.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2026-03-03
Estimated Expiration
2035-01-21

AI Technical Summary

Technical Problem

In existing technologies, during the process of installing gypsum board ceilings, the putty is prone to cracking at the joints of the aluminum alloy profiles due to the stress caused by the thermal expansion and contraction of the gypsum board, resulting in cracks at the contact surface between the putty and the profiles after construction.

Method used

The putty crack prevention structure adopts a combination of movable components, elastic components, and style-fixing components. By forming a movable whole with the plasterboard and putty, the elastic components provide cushioning, release stress, and prevent the putty from being directly stressed.

Benefits of technology

It effectively solved the problem of cracking between putty and profiles, maintained the aesthetics of the construction, and improved construction efficiency.

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Abstract

The utility model relates to a putty anti-cracking structure, which comprises a movable component, an elastic component and a style and shape fixing component, and adopts the structural principle that when a gypsum board expands with heat and contracts with cold to release stress, the style and shape fixing component is a fixing piece; the movable component, the gypsum board and the putty on the surface of the gypsum board serve as a whole and move left and right in parallel at the same time along with stress released by the gypsum board, the elastic component provides buffering, the contact face of the movable component connected with the putty on the surface of the gypsum board is not affected by the stress, and therefore the problem that the putty and a profile crack is solved.
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Description

Technical Field

[0001] This utility model relates to the field of building materials technology, and in particular to a putty anti-crack structure. Background Technology

[0002] Currently, most existing gypsum board ceiling technologies use aluminum alloy profiles for the joints. Due to the stress release characteristics of gypsum board caused by thermal expansion and contraction, the putty at the joint between the gypsum board ceiling and the wall is prone to cracking. In large-area ceilings, this can also cause expansion and contraction cracks in the putty at the joints of the gypsum board panels. The installation process involves first fixing the aluminum alloy profile joint between the wall and the gypsum board ceiling, then fixing the gypsum board to the aluminum alloy profile joint, and finally applying putty to the gypsum board surface. In particular, after the aluminum alloy profile joint is fixed, it has no buffering effect, and the profile is in direct contact with the gypsum board. After applying putty to the gypsum board surface, the putty is in direct contact with the fixed aluminum alloy profile joint. Due to the stress release characteristics of thermal expansion and contraction of gypsum board, the gypsum board and the putty on the gypsum board surface expand and contract with the stress, while the aluminum alloy profile joint remains fixed. This makes it easy for the putty on the gypsum board surface to crack with the aluminum alloy profile joint later on.

[0003] Chinese utility model patent CN208039598U discloses a gypsum board aluminum alloy edge trim. The principle is as follows: first, the gypsum board aluminum alloy edge trim is fixed; then, gypsum board is fixed onto the edge trim; and finally, putty is applied to the surface for decoration. However, after actual construction, due to the stress release property of gypsum board caused by thermal expansion and contraction, the gypsum board and putty will move left and right with the stress, while the gypsum board aluminum alloy edge trim remains stationary. This leads to cracking at the contact surface between the putty and the gypsum board aluminum alloy edge trim. Utility Model Content

[0004] To address the problem of putty easily cracking with aluminum alloy profiles in existing technologies, this utility model provides a putty crack-resistant structure. To achieve the above objective, this utility model adopts the following technical solution:

[0005] This utility model discloses a putty crack-prevention structure, comprising a movable component 1, an elastic component 2, and a style-fixing component 3. The movable component 1 includes a horizontally arranged horizontal plate, a vertical plate connected to one end of the horizontal plate, and an inclined plate connected to the other end of the vertical plate at an angle. The elastic component 2 is elastic and is located between the movable component 1 and the style-fixing component 3. The style-fixing component 3 includes a horizontally arranged horizontal plate and a vertical plate connected to the horizontal plate. The elastic component 2 is made of elastic foam material. The movable component 1 and / or the style-fixing component 3 are made of metal or plastic. The inclined plate and / or the style-fixing component 3 in the movable component 1... The vertical plate and / or the horizontal plate have grooves on their surfaces. The moving component 1 has a wall thickness of 0.1mm-2mm. The height of the apex of the inclined plate in the moving component 1 is higher than that of the vertical plate in the style fixing component 3. The style fixing component 3 has a wall thickness of 0.1mm-2mm. The length of one side of the horizontal plate in the style fixing component 3 is shorter than that of the horizontal plate in the moving component 1. The elastic component 2 has a wall thickness of 0.1mm-5mm and a height of 0.1mm-30mm. It is glued on both sides, glued on one side, or not glued. The surfaces of the moving component 1 and / or the style fixing component 3 have a coloring process. This putty anti-crack structure can be used alone or in multiple sets. The principle of this structure is as follows:

[0006] When the gypsum board 200 expands and contracts due to heat, releasing the stress from the left and right sides, the fixed component 3 and the gypsum board 300 are fixed together with the wall 400 using adhesive 4. The movable component 1 is fixed together with the gypsum board 200 and the surface putty 100 using adhesive 5, so that the movable whole moves horizontally and horizontally with the stress released by the gypsum board 200. The elastic component 2 provides a buffer, releasing the stress onto the elastic component 2. The contact surface of the movable component 1 with the surface putty 100 is not affected by the stress, thereby solving the problem of cracking between the putty and the profile.

[0007] In summary, compared with the prior art, the present invention has at least one of the following beneficial technical effects:

[0008] 1. The stress in the gypsum board is released, giving it elasticity.

[0009] 2. It can effectively solve the problem of cracking between gypsum board and fixed profiles, and the visual effect is beautiful.

[0010] 3. The actual construction operation is simple, which can improve construction efficiency. Attached Figure Description

[0011] Figure 1 This is a three-dimensional sectional view of the installation of the putty crack-prevention structure in Example 1;

[0012] Figure 2This is a cross-sectional view of the putty crack-resistant structure of Example 1. Figure 3 This is a cross-sectional view of the putty crack-resistant structure of Example 2;

[0013] Figure 4 This is a cross-sectional view of the movable component 1 in Embodiment 1;

[0014] Figure 5 This is a cross-sectional view of the elastic member 2 in Embodiment 1;

[0015] Figure 6 This is a sectional view of the style-fixing component 3 in Example 1; Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and the following examples:

[0017] Example 1

[0018] Example 1 provides a putty crack-resistant structure, such as Figure 1 , Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, first fix the style and shape fixing component 3 to the plasterboard 300 with adhesive 4.

[0019] Furthermore, an elastic component 2 is installed. The thickness of the elastic component 2 is between 0.1mm and 5mm, and it has adhesive surfaces on both sides. The elastic component 2 is located between the movable component 1 and the style-fixed component 3 to form a moving buffer.

[0020] Further, install the movable component 1. The movable component 1 and the style-fixed component 3 have a parallel left-right movement gap of 0.1mm-5mm. The contact surface of the movable component 1 with the plasterboard 200 has grooves to increase the adhesion at the connection point. The apex of the inclined plate should be 0.1mm-3mm higher than the bottom surface of the plasterboard 200 to facilitate subsequent application of putty. The grooves on the inclined plate surface further enhance the adhesion between the movable component 1 and the surface putty 100. A cut is made in the plasterboard 200 to ensure complete adhesion to the plasterboard 300, increasing the overall stability of the plasterboard 200. Then, adhesive 5 is used to bond the plasterboard 200 and the movable component 1 into a single movable unit. Finally, putty 100 is applied to the surface of the plasterboard 200. The completed installation effect is as follows. Figure 2 This structure allows the fixed component 3 to form a fixed whole with the plasterboard 300 and the wall 400, and the movable component 1 to form a movable whole with the plasterboard 200 and the putty 100. The elastic component 2 provides a buffer for both, releasing the stress of the plasterboard 200 to the elastic component 2, so that the contact surface between the movable component 1 and the putty 100 is not affected by stress, thus solving the cracking problem.

[0021] Example 2

[0022] Example 2 provides a putty crack-resistant structure, which differs from Example 1 in that, as Figure 3 As shown, two sets of putty anti-crack structures are used opposite each other. The key feature is that the anti-crack design is changed from single-sided to double-sided, primarily used for large-area gypsum board installations to solve the problem of cracking at gypsum board joints caused by stress release due to thermal expansion and contraction, resulting in crazing patterns in the middle. Example 2 includes a movable component 1, an elastic component 2, a style-fixing component 3, a movable component 11, an elastic component 12, and a style-fixing component 13. Style-fixing components 3 and 13 can also be fabricated as a single, integrated component during processing for easier future construction and increased stability. The installation method of Example 2 is basically similar to that of Example 1; please refer to the detailed description of Example 1.

[0023] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. A putty anti-cracking structure comprising a moving member, an elastic member, and a pattern molding fixing member, characterized in that: The moving member comprises a horizontal plate, a vertical plate connected to one end of the horizontal plate, and an inclined plate with an angle connected to the other end of the vertical plate, the elastic member has elasticity, the elastic member is located between the moving member and the pattern forming fixed member, and the pattern forming fixed member comprises a horizontal plate and a vertical plate connected to the horizontal plate.

2. The putty break structure according to claim 1, wherein The elastic member is an elastic foam material, and the moving member and / or the pattern forming fixed member is made of metal or plastic.

3. The putty break structure of claim 1, wherein The inclined plate, the vertical plate, and / or the horizontal plate of the moving member have concave-convex grooves on the surface.

4. The putty break structure according to claim 1 or 2, wherein The wall thickness of the moving member is 0.1-2 mm, and the height of the vertex of the inclined plate is higher than that of the vertical plate of the pattern forming fixed member.

5. The putty break structure according to claim 1 or 2, wherein The wall thickness of the pattern forming fixed member is 0.1-2 mm, and the single-side length of the horizontal plate of the pattern forming fixed member is less than that of the horizontal plate of the moving member.

6. The putty break structure according to claim 1 or 2, wherein The wall thickness of the elastic member is 0.1-5 mm, the height is 0.1-30 mm, and the elastic member has double-sided glue or single-sided glue or no glue.

7. The putty break structure of claim 1, wherein The surface of the moving member and / or the pattern forming fixed member has a coloring process.

8. The putty break structure of claim 1, wherein A group of the putty anti-cracking structures are used alone or multiple groups are spliced.

Citation Information

Patent Citations

  • Strake is received to gypsum board aluminum alloy

    CN208039598U