Gypsum board suspended ceiling anti-cracking profile

Abstract

The utility model provides a gypsum board ceiling anti -cracking section bar relates to gypsum board ceiling technical field, including first section bar and second section bar, first section bar includes first seam wall, first slip wall to the joint side extension and first wing wall, and first wing wall is used for connecting first gypsum board, second section bar includes second seam wall, second slip wall to the joint side extension and second wing wall, and second wing wall is connected with the second gypsum board adjacent to first gypsum board, second slip wall and first slip wall horizontal sliding fit, first seam wall and second seam wall are provided opposite, and the area of first seam wall and second seam wall opposite forms the process seam, and the process seam top is closed, and the bottom is open, can adapt to standard seam, micro -slit and seamless decoration effect, when the gypsum board produces thermal expansion and cold shrinkage deformation because of temperature change, the stress is released through the slip wall sliding, and the whole structure stability is ensured through the wing wall and the rigid connection of gypsum board, and has deformation adaptation ability and decoration integrity.

Description

Technical Field

[0001] This utility model relates to the field of gypsum board ceiling technology, specifically to a crack-resistant profile for gypsum board ceilings. Background Technology

[0002] Gypsum board ceilings are widely used in the building decoration field due to their advantages such as being lightweight and easy to install. However, the cracking problem of light steel keel gypsum board ceilings (especially in special areas such as corners and along the entire length) has long plagued the industry and become a problem in the decoration field.

[0003] Existing technologies have proposed various solutions to this problem, but all of them have inherent limitations:

[0004] 1. Deficiencies of the corner reinforcement solution

[0005] The plasterboard at the corner was cut in a 7-shape or T-shape and reinforced with galvanized steel corner plates. This solution attempted to resist cracking by enhancing the "integrity" of the plasterboard, but the rigid connection between the plasterboard and the reinforcement could not absorb the deformation stress caused by temperature changes and building settlement. When the ceiling undergoes slight deformation due to environmental changes, the rigid connection will concentrate the stress at the corner, eventually leading to the initiation of cracks.

[0006] 2. Deficiencies of the double-layer gypsum board solution

[0007] The installation of double-layered gypsum board with staggered joints aims to disperse stress through interlayer misalignment. However, the superposition of two rigid layers further amplifies the stress transfer effect during deformation—the deformation of the upper and lower gypsum board layers restrains each other, and the stress concentration problem in weak areas such as corners becomes more prominent, thus the risk of cracking is not fundamentally resolved.

[0008] 3. Deficiencies of the keel reinforcement scheme

[0009] By reinforcing the keel structure through riveting and welding, an attempt is made to improve stability from the support system. However, the connection between the keel and the gypsum board remains rigid, and the internal stress generated by the deformation of the gypsum board itself cannot be released—even if the keel is strong enough, the gypsum board, as a rigid material, will still crack on the surface due to its inability to deform elastically.

[0010] In summary, the core logic of existing technologies revolves around "strengthening structural strength and improving overall integrity." However, when the deformation stress exceeds the bearing limit of the rigid connection, cracking is inevitable. Therefore, a new technical solution is urgently needed: one that can both provide room for the deformation of gypsum board and ensure the integrity of the ceiling surface, thereby reducing the risk of cracking in gypsum board ceilings. Utility Model Content

[0011] The purpose of this utility model is to provide a gypsum board ceiling anti-cracking profile to solve the problems existing in the prior art, provide adaptation space for the deformation of gypsum board, ensure the integrity of the ceiling surface, and reduce the risk of gypsum board ceiling cracking.

[0012] To achieve the above objectives, this utility model provides the following solution: a gypsum board ceiling anti-cracking profile, characterized in that it comprises:

[0013] The first profile includes a first joint wall, a first sliding wall extending toward the joint side, and a first wing wall extending outward, the first wing wall being used to connect the first gypsum board.

[0014] The second profile includes a second joint wall, a second sliding wall extending toward the joint side, and a second wing wall extending outward, the second wing wall being used to connect a second gypsum board adjacent to the first gypsum board;

[0015] The second sliding wall and the first sliding wall slide laterally together, the first seam wall and the second seam wall are arranged opposite to each other, and the area where the first seam wall and the second seam wall are opposite to each other forms a process seam.

[0016] In one embodiment, the first sliding wall is connected to the top of the first slit wall, and the upper surface of the second sliding wall is provided with a limiting protrusion for abutting against the first sliding wall. The lower surface of the first sliding wall slides and overlaps with the upper surface of the second sliding wall. The limiting protrusion is disposed at the end of the second sliding wall, and the first sliding wall is laterally aligned with the limiting protrusion.

[0017] In one embodiment, the first seam wall includes a first vertical segment and a first horizontal segment connected to the bottom end of the first vertical segment; the second seam wall includes a second vertical segment and a second horizontal segment connected to the bottom end of the second vertical segment, the second horizontal segment including a sliding connection portion for slidingly engaging with the first horizontal segment.

[0018] In one embodiment, the end of the first horizontal segment forms a first sidewall of the process seam, the second horizontal segment includes a horizontal segment body, the sliding connection is disposed on the horizontal segment body, and the end wall of the horizontal segment body opposite to the first horizontal segment forms a second sidewall of the process seam.

[0019] As one embodiment, the first seam wall further includes a first bottom section connected to the end of the first horizontal segment; the second seam wall further includes a second bottom section connected to the end of the second horizontal segment; the first bottom section and the second bottom section are disposed opposite to each other, and the first bottom section and the second bottom section respectively form the first side wall and the second side wall of the process seam.

[0020] In one embodiment, the sliding connection part and the horizontal segment body are integrally formed, and the bottom surface of the sliding connection part constitutes the top wall of the process seam.

[0021] As one embodiment, both the first wing wall and the second wing wall are provided with mounting holes for connecting gypsum board.

[0022] As one embodiment, the lateral width of the process seam is between 2 and 10 mm.

[0023] The present invention achieves the following technical advantages over the prior art:

[0024] 1. This utility model embeds a sliding anti-cracking profile in a special part of the gypsum board ceiling. When the gypsum board ceiling changes temperature, it will deform under stress. Through the rigid connection between the first wing wall, the second wing wall and the gypsum board, the deformation force is transmitted to the lateral sliding fit structure of the first sliding wall and the second sliding wall, realizing the lateral adaptive sliding of the first profile and the second profile. The gypsum board can freely expand and contract within the profile without being pulled apart. The design of the process seam of the profile releases deformation stress while ensuring the continuity and integrity of the ceiling surface decoration, realizing the dual-dimensional technical advantages of "structural stress relief" and "decorative effect maintenance". The surfaces of the first and second wing walls can be directly covered with wire mesh, plastered, and puttyed, seamlessly integrating with the gypsum board construction process. The process joints are formed by the structure of the profiles themselves, reducing process costs. They are used as process joint profiles to enhance the artistic design of the ceiling, achieving an integrated solution of "cracking prevention + artistic design". This not only provides room for the deformation of the gypsum board but also ensures the integrity of the ceiling surface, solving the risk of cracking in gypsum board ceilings.

[0025] Other technical solutions of this utility model also achieve the following technical effects:

[0026] 2. Standard seam construction method:

[0027] The first and second wing walls are fixed to the first and second gypsum boards respectively, ensuring a tight fit between the wing walls and the gypsum boards. The side walls (first and second joint walls) and top walls (first and second sliding walls) of the process joint are exposed. No putty is applied in the standard process joint, forming a regular rectangular standard decorative joint. Putty is still applied to the surfaces of the first and second wing walls to level them with the gypsum board, forming a uniform putty layer. Finally, a uniform rectangular joint appears on the ceiling surface. The inside of the joint can be painted with latex paint to coordinate with the overall decorative surface, achieving the standard joint construction method for the ceiling.

[0028] 3. Seamless construction method:

[0029] The bottom of the first and second seam walls are coplanar with the first and second wing walls. Elastic material 31 is filled into the gap of the process seam and scraped until it is flush with the putty layer on the gypsum board surface to form a seamless decorative surface. The elastic deformation capability of the elastic material 31 can adapt to the sliding stroke of the profile. When deformed, it stretches / compresses with the sliding wall without hindering the sliding or tearing. It achieves the dual functions of "seamless surface" and "sliding interior". The profile can be hidden inside the putty layer, and no change can be seen in the appearance. It will not damage the visual quality of the ceiling.

[0030] 4. Micro-seam construction:

[0031] The first and second horizontal segments extend laterally (towards the center of the joint). The first bottom segment connects to the "center side end of the joint" of the first horizontal segment, and the second bottom segment connects to the "center side end of the joint" of the second horizontal segment, thus reducing the distance between the two bottom segments. The sliding connection of the second horizontal segment forms the top wall of the process joint, sealing the top of the process joint. The first and second bottom segments together form the side wall of the process joint. Because the horizontal segments extend further towards the center of the joint and the bottom segment connection position is more inward, the process joint presents a narrow rectangular shape. This retains the core anti-crack function of "horizontal segment sliding to adapt to deformation" and achieves a "visually seamless" decorative effect through extremely small joint width. It is suitable for minimalist ceiling designs, realizes micro-joint design, solves the industry pain point of "narrow joints easily getting stuck," and avoids the tearing of the decorative layer during deformation due to insufficient sliding space in traditional narrow joints. Only latex paint can be applied to this process joint. After the surface is coated with latex paint, a continuous decorative surface is formed, achieving the visual effect of "micro-joint." Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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.

[0033] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present utility model;

[0034] Figure 2 This is a schematic diagram of the overall structure of Embodiment 2 of this utility model;

[0035] Figure 3 This is a schematic diagram of the overall structure of Embodiment 3 of this utility model;

[0036] Figure 4 This is a schematic diagram of the standard seam assembly of this utility model;

[0037] Figure 5 for Figure 4 A magnified view of a portion of point A in the middle;

[0038] Figure 6 for Figure 4 A schematic diagram of the profile assembly in the diagram;

[0039] Figure 7 This is a schematic diagram of the seamless assembly of this utility model;

[0040] Figure 8 for Figure 7 A magnified view of a portion of point B in the middle;

[0041] Figure 9 for Figure 7 A partially enlarged schematic diagram of the assembly of medium-sized profiles;

[0042] Figure 10 This is a schematic diagram of the micro-seam assembly of this utility model;

[0043] Figure 11 for Figure 10 A magnified view of a portion of point C in the middle;

[0044] Figure 12 for Figure 10 A partially enlarged schematic diagram of the assembly of medium-sized profiles.

[0045] Among them, 1. First profile; 2. Second profile; 3. First joint wall; 4. First sliding wall; 5. First wing wall; 6. First gypsum board; 7. Second joint wall; 8. Second sliding wall; 9. Second wing wall; 10. Second gypsum board; 11. Process joint; 12. Limiting protrusion; 13. Putty layer; 14. First vertical section; 15. First horizontal section; 16. First bottom section; 17. Second vertical section; 18. Second horizontal section; 19. Second bottom section; 24. Horizontal section main body; 25. Sliding connection part; 26. Wall top plate; 27. Clip-type main keel; 28. Secondary keel; 29. ​​Hanger rod; 30. Outward protrusion; 31. Elastic material. Detailed Implementation

[0046] 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.

[0047] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0048] Example 1:

[0049] This embodiment provides a crack-resistant profile for gypsum board ceilings. Please refer to [reference needed]. Figure 1-12 As shown; including a first profile 1 and a second profile 2, both of which are aluminum profiles. The first profile 1 includes a first joint wall 3, a first sliding wall 4, and a first wing wall 5. The joint side is the direction of the butt joint between two adjacent gypsum boards, and the outer side is the side of the gypsum board away from the joint. (Reference) Figure 1 As shown, the first sliding wall 4 extends towards the joint side, while the first wing wall 5 extends outward (i.e., towards the plasterboard side). The first sliding wall 4 and the first wing wall 5 are located on opposite sides of the first joint wall 3. The first sliding wall 4 is connected to the top of the first joint wall 3, and the first wing wall 5 is connected to the bottom of the first joint wall 3. The first plasterboard 6 is connected via the first wing wall 5. The second profile 2 includes a second joint wall 7, a second sliding wall 8, and a second wing wall 9. The second sliding wall 8 extends towards the joint side, while the second wing wall 9 extends outward (i.e., towards the plasterboard side). The second sliding wall 8 and the second wing wall 9 are located on opposite sides of the second joint wall 7. The second sliding wall 8 is connected to the top of the second joint wall 7, and the second wing wall 9 is connected to the bottom of the second joint wall 7. The second plasterboard 10 adjacent to the first plasterboard 6 can be connected via the second wing wall 9. The second sliding wall 8 and the first sliding wall 4 slide laterally in a sliding fit. Preferably, the second sliding wall 8 can directly overlap the first sliding wall 4. The first seam wall 3 and the second seam wall 7 are arranged opposite to each other, and a process seam 11 is formed in the area where the first seam wall 3 and the second seam wall 7 are opposite. Specifically, the first seam wall 3, the second seam wall 7, the first sliding wall 4 and the second sliding wall 8 together form a process seam 11 that is closed at the top and open at the bottom. The process seam 11 is also called a process groove. The groove opening of the process groove faces downward, and the lateral width of the process seam 11 can be between 2-10mm.

[0050] Working principle:

[0051] S1, Deformation Response Stage:

[0052] When gypsum board ceilings deform due to temperature fluctuations (thermal expansion and contraction) or building settlement (structural displacement):

[0053] The first gypsum board 6 drives the first profile 1 (through the fixed connection of the first wing wall 5) to move synchronously;

[0054] The second gypsum board 10 drives the second profile 2 (through the fixed connection of the second wing wall 9) to move synchronously;

[0055] Due to the relative deformation of the gypsum board, the two profiles tend to shift along the joint direction (lateral direction).

[0056] S2, Sliding Adaptation Phase:

[0057] The first sliding wall 4 and the second sliding wall 8 slide relative to each other based on a lateral sliding fit relationship (such as overlap, groove-slide bar guidance):

[0058] If it is an overlapping fit: the second sliding wall 8 slides on the upper surface of the first sliding wall 4, and the displacement is absorbed by the contact area;

[0059] If it is a groove-slide bar structure: the slide bar slides along the groove guide to ensure stable displacement direction and avoid jamming.

[0060] During the sliding process, the bottom opening of the process seam 11 provides physical expansion and contraction space for the lateral sliding of the sliding wall, avoiding the extrusion and deformation of the profile.

[0061] S3, Functional Closed-Loop Stage of Process Seams

[0062] Top closure: The enclosure structure of the first joint wall 3, the second joint wall 7 and the sliding wall maintains the continuity of the ceiling decoration surface (no obvious cracks are exposed); putty can be applied and latex paint can be painted on the gypsum board afterward. Latex paint can be applied at the process joint 11 to form a visual effect consistent with the gypsum board.

[0063] This invention embeds a sliding, crack-resistant profile in special locations of gypsum board ceilings (deformation-sensitive areas, such as large-span splicing areas, temperature difference zones, and corners). When the gypsum board ceiling changes temperature, it will deform under stress. Through the rigid connection between the first wing wall 5, the second wing wall 9 and the gypsum board, the deformation force is transmitted to the lateral sliding fit structure of the first sliding wall 4 and the second sliding wall 8, realizing the lateral adaptive sliding of the first profile 1 and the second profile 2. The gypsum board can freely expand and contract within the profile without being pulled apart. The design of the process seam 11 of the profile releases deformation stress while ensuring the continuity and integrity of the ceiling surface decoration, achieving the dual technical advantages of "structural stress relief" and "decorative effect maintenance".

[0064] This invention transforms the deformation stress of the gypsum board into the sliding displacement of the profile through the relative sliding of the sliding wall, replacing the traditional "rigid connection → stress concentration → cracking" method. This establishes a stress relief mechanism and achieves a fundamental solution to prevent cracking. The bottom opening of the process joint 11 is designed to allow for deformation, preventing the profile or gypsum board from breaking due to "lack of expansion space," thus achieving a space redundancy design.

[0065] Furthermore, the process joint 11 not only provides displacement accommodation space for the first sliding wall 4 and the second sliding wall 8, ensuring smooth sliding, but also absorbs the deformation energy of the gypsum board, preventing stress accumulation from the root. Moreover, the closed top of the process joint 11 ensures that no cracks are exposed on the ceiling surface, achieving a synergy between "functional crack prevention" and "decorative aesthetics." The surfaces of the first wing wall 5 and the second wing wall 9 can be directly covered with mesh, plastered, and puttyed, seamlessly connecting with the gypsum board construction process. The process joint 11 does not require additional decorative strips; it is formed through the structure of the profile itself, reducing process costs. As a process joint profile, it enhances the artistic design of the ceiling, realizing an integrated solution of "crack prevention + artistic design." It not only provides adaptation space for the deformation of the gypsum board but also ensures the integrity of the ceiling surface, solving the risk of cracking in the gypsum board ceiling.

[0066] In this embodiment, the first sliding wall 4 is connected to the top of the first joint wall 3. The upper surface of the second sliding wall 8 is provided with a limiting protrusion 12, which abuts against the first sliding wall 4. The lower surface of the first sliding wall 4 overlaps the upper surface of the second sliding wall 8, forming a mating surface that can slide laterally. The limiting protrusion 12 is provided at the end of the second sliding wall 8 along the gypsum board joint direction, which restricts the sliding stroke of the first sliding wall 4 and ensures the structural stability of the process joint 11. The sliding trajectory of the first sliding wall 4 abuts against the limiting protrusion 12. In this state, a standard joint is formed. The first joint wall 3 and the second joint wall 7 constitute the sidewalls of the process joint 11, and the first sliding wall 4 and the second sliding wall 8 constitute the top wall of the process joint 11, making the process joint 11 a rectangular joint. Preferably, the first joint wall 3 is perpendicular to the first sliding wall 4, and the second joint wall 7 is perpendicular to the second sliding wall 8. In this case, the process joint 11 is a rectangular joint with the opening facing downward.

[0067] In this embodiment, when the first sliding wall 4 abuts against the limiting protrusion 12, the total length of the first sliding wall 4 and the limiting protrusion 12 is 10mm; the lengths of the first wing wall 5 and the second wing wall 9 are both 19mm. The width of the process seam 11 is 8mm. The total length of the profile is 46mm. The first wing wall 5 and the second wing wall 9 are coplanar, and the distance between the first wing wall 5 and the top surface of the first sliding wall 4 is 9mm, that is, the height of the profile is 9mm. The bottom of both the first joint wall 3 and the second joint wall 7 is provided with an outward protrusion 30. The two outward protrusions 30 are arranged opposite to each other and parallel to each other. The two outward protrusions 30 are the same size. The outward protrusion 30 of the first joint wall 3 can protrude downward from the first wing wall 5 and can be flush with the first wing wall 5 and the putty layer 13 on the bottom surface of the gypsum board. The outward protrusion 30 on the second joint wall 7 can protrude downward from the second wing wall 9 and can be flush with the second wing wall 9 and the putty layer 13 on the bottom surface of the gypsum board, so as to ensure the continuity of visual effect.

[0068] Standard seam construction method:

[0069] refer to Figure 4-6 As shown, the lower surface of the first sliding wall 4 is precisely overlapped with the upper surface of the second sliding wall 8, so that the two can slide along the joint direction (lateral direction); the limiting protrusion 12 at the end of the second sliding wall 8 is oriented toward the sliding path of the first sliding wall 4; the first wing wall 5 and the second wing wall 9 are respectively fixed to the first plasterboard 6 and the second plasterboard 10 to ensure that the wing wall and the plasterboard are tightly fitted.

[0070] At this point, the side walls (first joint wall 3, second joint wall 7) and top walls (first sliding wall 4, second sliding wall 8) of the process joint 11 are exposed. The gap area between them (3-5mm wide) is not plastered, forming a regular rectangular standard decorative joint. Plaster is still applied to the surfaces of the first wing wall 5 and the second wing wall 9 to level with the plasterboard, forming a uniform plaster layer 13. Ultimately, a uniform rectangular joint appears on the ceiling surface. The inside of the joint can be painted with latex paint to coordinate with the overall decorative surface. The horizontal width of the standard joint is between 5-10mm.

[0071] Example 2:

[0072] Seamless approach: Reference Figure 2 and Figure 7-9 As shown, Figure 2 As shown, the bottoms of the first seam wall 3 and the second seam wall 7 are coplanar with the first wing wall 5 and the second wing wall 9. No external protrusion 30 is required at the bottom of either the first seam wall 3 or the second seam wall 7; instead, elastic material 31 can be filled into the process seam 11. Preferably, the bottom surface of the elastic material 31 is coplanar with the first wing wall 5 and the second wing wall 9. Putty is directly applied to the bottom of the first seam wall 3, the second seam wall 7, and the elastic material 31, forming a continuous putty layer 13 on the bottom of the plasterboard, the bottom walls of the first wing wall 5 and the second wing wall 9, and the bottom of the elastic material 31 in the process seam 11. This ensures the continuity of the putty layer 13 at the profile, guaranteeing aesthetics and ensuring the effective implementation of the seamless construction. At this time, when the first sliding wall 4 abuts against the limiting protrusion 12, the total length of the first sliding wall 4 and the limiting protrusion 12 is 7mm; the lengths of the first wing wall 5 and the second wing wall 9 are both 19mm. The width of the process seam 11 is 5mm; the total length of the profile is 43mm. The first wing wall 5 and the second wing wall 9 are coplanar. The distance between the first wing wall 5 and the top surface of the first sliding wall 4 is 5mm, that is, the total height of the profile is 5mm. Based on the standard joint method, elastic material 31 is filled into the gap of the process joint 11: it is scraped until it is flush with the putty layer 13 on the surface of the gypsum board to form a seamless decorative surface. The elastic deformation capability of the elastic material 31 can adapt to the sliding stroke of the profile. When deformed, it stretches / compresses with the sliding wall without hindering the sliding or tearing. It achieves the dual functions of "seamless surface" and "internal sliding". The profile can be hidden inside the putty layer 13, and no change can be seen in the appearance. It will not damage the visual quality of the ceiling.

[0073] Example 3:

[0074] The first joint wall 3 includes a first vertical segment 14 and a first horizontal segment 15, which form an L-shaped structure. A first sliding wall 4 is connected to the top of the first vertical segment 14. The first horizontal segment 15 extends laterally from the bottom of the first vertical segment 14 toward the joint side, forming a sliding fit bearing surface. The end of the first horizontal segment 15 forms the sidewall of the process joint 11. The second joint wall 7 includes a second vertical segment 17 and a second horizontal segment 18, which extends laterally from the bottom of the second vertical segment 17 toward the center of the joint. The area opposite the second horizontal segment 18 and the first horizontal segment 15 forms a process seam 11. The second horizontal segment 18 also includes a horizontal segment body 24 and a sliding connection part 25. The sliding connection part 25 is disposed on the horizontal segment body 24 and is located at the end of the second horizontal segment 18. The bottom surface of the sliding connection part 25 slides and overlaps with the top surface of the first horizontal segment 15, and the lower surface of the sliding connection part 25 is in close contact with the upper surface of the first horizontal segment 15, forming a transverse sliding mating surface, allowing the first profile 1 and the second profile 2 to slide relative to each other along the joint direction, adapting to the deformation of the gypsum board. The end of the horizontal segment body 24 is positioned opposite to the end of the first horizontal segment 15.

[0075] like Figure 3 as well as Figures 10-12 As shown, the first seam wall 3 also includes a first bottom section 16, a first vertical section 14 connected to the end of the first horizontal section 15, and a first bottom section 16 connected to the end of the first horizontal section 15; a first sliding wall 4 connected to the top of the first vertical section 14, and the first horizontal section 15 extending laterally towards the seam side to form a sliding fit bearing surface; the first bottom section 16 vertically downwards to form the first sidewall of the process seam 11; the second seam wall 7 includes a second bottom section 19, a second vertical section 17 connected to the end of the horizontal section body 24, a second sliding wall 8 connected to the top of the second vertical section 17, and a second bottom section 19 connected to the end of the second horizontal section 18. The second bottom section 19 is specifically located at the end of the horizontal section body 24 and is part of the horizontal section body 24. The second bottom section 19 is integrally formed with the sliding connection part 25 and the second vertical section 17. The second bottom section 19 is vertically arranged, and the side opposite to the first bottom section 16 forms the second sidewall of the process seam 11. The sliding connection portion 25 of the second horizontal segment 18 overlaps the upper surface of the first horizontal segment 15, and the second horizontal segment 18 and the first horizontal segment 15 form a transverse sliding fit structure; the first bottom segment 16 and the second bottom segment 19 are arranged relatively parallel to each other, together forming the process seam 11. Alternatively, a transverse sliding groove can be provided on the upper surface of the first horizontal segment 15, and an adaptive sliding strip can be provided on the lower surface of the second horizontal segment 18 to ensure the stability of sliding.

[0076] Micro-seam construction: The first horizontal segment 15 and the second horizontal segment 18 extend laterally (in the direction of the seam center), reducing the lateral length of the process seam 11; the first bottom segment 16 connects to the "seam center side end" of the first horizontal segment 15, and the second bottom segment 19 connects to the "seam center side end" of the second horizontal segment 18, reducing the distance between the two bottom segments. The sliding connection part 25 of the second horizontal segment 18 forms the top wall of the process seam 11, closing the top of the process seam 11; the first bottom segment 16 and the second bottom segment 19 together form the side wall of the process seam 11.

[0077] Because the horizontal section extends further towards the center of the joint and the bottom section is more recessed, the process seam 11 presents a narrow rectangular shape. It retains the core anti-crack function of "horizontal section sliding adaptation deformation" and achieves a "visually close to seamless" decorative effect through extremely small seam width. It is suitable for minimalist ceiling design and realizes micro-seam design.

[0078] This invention achieves deformation adaptability: although the micro-slit is narrow, the overlap length of the horizontal segment still meets the requirement of "sliding stroke ≥ deformation amount", solving the industry pain point of "narrow slits are easy to get stuck" and avoiding the traditional narrow slits from tearing the decorative layer during deformation due to insufficient sliding space; in this process slit 11, only latex paint can be applied, and after the surface is coated with latex paint, a continuous decorative surface is formed, achieving the visual effect of "micro-slit".

[0079] In addition, the micro-gaps can also be filled with elastic material 31 to achieve a seamless surface: the elastic material 31 deforms synchronously with the horizontal section sliding, without hindering the deformation; the putty layer is flush with the gypsum board surface to form a continuous decorative surface, taking into account both crack prevention and aesthetics, and providing technical support for minimalist ceilings.

[0080] In one embodiment, both the first wing wall 5 and the second wing wall 9 are provided with mounting holes, preferably threaded holes, and the first wing wall 5 and the second wing wall 9 are connected to the plasterboard through the mounting holes and the corresponding bolts.

[0081] During assembly, the hanger rods are fixed as follows: holes are drilled at preset intervals on the wall and ceiling panel 26, and the upper end of the hanger rod 29 is fixed with expansion bolts; the wall and ceiling panel 26 is preferably a concrete ceiling panel; the lower end of the hanger rod 29 can be connected to the clip-on main keel 27 through a lock nut, and the lock nut is adjusted to make the clip-on main keel 27 level (error ≤3mm) to form the main support of the ceiling. The groove on the lower surface of the clip-on main keel 27 engages with the end protrusion of the secondary keel 28, and the secondary keels 28 are spaced apart; the first gypsum board 6 and the second gypsum board 10 are fixed to the secondary keel 28, which can be fixed with screws, and a certain gap is reserved at the joint of the two boards to accommodate the width of the process joint 11, and the reserved gap can be 3-15mm.

[0082] The first profile 1 and the second profile 2, with their first wing wall 5 and second wing wall 9, fit against the bottom surface of the gypsum board. They are installed onto the gypsum board through mounting holes on the wing walls and secured with screws. The screws are offset from the secondary keel 28 to avoid puncturing it. The overlap between the first sliding wall 4 and the second sliding wall 8 is checked. In the initial state, the limiting protrusion 12 directly abuts against the first sliding wall 4, ensuring consistent initial assembly dimensions for each set of profiles. Alternatively, a certain gap can be left between the limiting protrusion 12 and the first sliding wall 4 in the initial state, allowing the first profile 1 and the second profile 2 to slide bidirectionally in the horizontal direction, ensuring smooth and unobstructed movement. The assembly mode can be divided into two types:

[0083] Mode 1: Standard seam assembly:

[0084] The limiting protrusion 12 of the second sliding wall 8 directly abuts against the end of the first sliding wall 4, forcing the initial distance between the first profile 1 and the second profile 2, unifying the width of the process joint 11, and ensuring that the decorative joint shape is regular. In this mode, the sliding wall slides only in one direction, that is, the first profile 1 and the second profile 2 move away from each other (the direction of gypsum board heating and expansion), so as to adapt to normal temperature deformation.

[0085] Mode 2: Deformation and Adaptation Assembly

[0086] A preset gap is reserved between the limiting protrusion 12 of the second sliding wall 8 and the first sliding wall 4. The size of the preset gap can be 2-3mm. The preset gap is distributed with a sliding allowance of 1-1.5mm in each of the two directions of lateral sliding along the joint direction, thereby allowing the first profile 1 and the second profile 2 to achieve bidirectional sliding adaptation.

[0087] In the scenario of thermal expansion: when the gypsum board expands due to heat, the first profile 1 and the second profile 2 slide in a direction away from each other. The preset gap absorbs the expansion. Hooks that cooperate with each other can be set on both the first profile 1 and the second profile 2. When the first profile 1 and the second profile 2 reach their maximum stroke, they are sufficiently far apart. The hooks form a mechanical limiting structure to limit the maximum sliding stroke. The hooks can adopt a structure commonly used in the prior art, which belongs to the prior art. The hooks can ensure that the first profile 1 and the second profile 2 do not separate, so as to stabilize the structure of the process joint 11.

[0088] Cooling and shrinkage scenario: When the gypsum board shrinks due to cold, the two profiles slide in opposite directions (towards each other), and the preset gap compensates for the shrinkage, avoiding deformation of the process seam 11 due to compression.

[0089] In the dual assembly modes of this utility model, the standard seam assembly mode, for scenarios with high requirements for the regularity of decorative seams, achieves a balance between "regular decorative seams + conventional crack prevention" through "fixed initial seam width + unidirectional sliding," thus meeting visual design needs. The deformable and adaptable assembly can adapt to large-span ceilings and areas with severe temperature differences.

[0090] It should be noted that, for those skilled in the art, it is obvious that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model 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 utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0091] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A gypsum board suspended ceiling anti-cracking profile, characterized in that, include: The first profile (1) includes a first joint wall (3), a first sliding wall (4) extending toward the joint side, and a first wing wall (5) extending outward, the first wing wall (5) being used to connect the first gypsum board (6). The second profile (2) includes a second joint wall (7), a second sliding wall (8) extending toward the joint side, and a second wing wall (9) extending outward. The second wing wall (9) is used to connect a second gypsum board (10) adjacent to the first gypsum board (6). The second sliding wall (8) slides laterally with the first sliding wall (4), the first seam wall (3) and the second seam wall (7) are arranged opposite to each other, and the area where the first seam wall (3) and the second seam wall (7) are opposite to each other forms a process seam (11).

2. Suspended gypsum board ceiling anti-cracking profile according to claim 1, characterized in that, The first sliding wall (4) is connected to the top of the first slit wall (3). The upper surface of the second sliding wall (8) is provided with a limiting protrusion (12) for abutting against the first sliding wall (4). The lower surface of the first sliding wall (4) slides and overlaps with the upper surface of the second sliding wall (8). The limiting protrusion (12) is provided at the end of the second sliding wall (8). The first sliding wall (4) and the limiting protrusion (12) are laterally aligned.

3. The gypsum board suspended ceiling anti-cracking profile according to claim 1, characterized in that, The first seam wall (3) includes a first vertical section (14) and a first horizontal section (15) connected to the bottom end of the first vertical section (14); the second seam wall (7) includes a second vertical section (17) and a second horizontal section (18) connected to the bottom end of the second vertical section (17), the second horizontal section (18) including a sliding connection part (25) for slidingly engaging with the first horizontal section (15).

4. Suspended gypsum board ceiling anti-cracking profile according to claim 3, characterized in that, The end of the first horizontal segment (15) forms the first sidewall of the process seam (11), and the second horizontal segment (18) includes a horizontal segment body (24), the sliding connection part (25) is disposed on the horizontal segment body (24), and the end wall of the horizontal segment body (24) opposite to the first horizontal segment (15) forms the second sidewall of the process seam (11).

5. The gypsum board suspended ceiling anti-cracking profile according to claim 3, characterized in that, The first seam wall (3) further includes a first bottom section (16) connected to the end of the first horizontal section (15); the second seam wall (7) further includes a second bottom section (19) connected to the end of the second horizontal section (18); the first bottom section (16) and the second bottom section (19) are arranged opposite to each other, and the first bottom section (16) and the second bottom section (19) respectively form the first side wall and the second side wall of the process seam (11).

6. The gypsum board suspended ceiling anti-cracking profile according to claim 4, characterized in that, The sliding connection part (25) and the transverse body (24) are integrally formed, and the bottom surface of the sliding connection part (25) constitutes the top wall of the process seam (11).

7. The gypsum board suspended ceiling anti-cracking profile according to claim 1, characterized in that, Both the first wing wall (5) and the second wing wall (9) are provided with mounting holes for connecting gypsum boards.

8. The gypsum board suspended ceiling anti-cracking profile according to claim 1, characterized in that, The transverse width of the process seam (11) is between 2 and 10 mm.

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