Corner keel supporting structure for improving cracking of gypsum board suspended ceiling

Abstract

The utility model discloses a corner keel supporting structure for improving cracking of a gypsum board suspended ceiling, which comprises an inner side corner keel, an outer side corner keel and a cable-stayed supporting piece which are used for connecting and installing a gypsum board, and two ends of the cable-stayed supporting piece are respectively connected with two sides of the outer side corner keel through corner connecting pieces. A variable cross-section structure is arranged in the middle of the cable-stayed supporting piece, and the variable cross-section structure is connected with the corner of the inner side corner keel; a plurality of straight keels are arranged between the inner side edge corner keel and the outer side edge corner keel and between the outer side edge corner keel and the cable-stayed supporting piece respectively. According to the corner keel supporting structure, through the arrangement of the cable-stayed supporting piece and the improvement of a connecting and mounting structure, when the ceiling keel is used for mounting a gypsum board, the problem of cracking of the gypsum board can be solved, the service life of a ceiling is prolonged, the deformation resistance of the ceiling is enhanced, meanwhile, potential safety hazards in the construction process can be reduced, and the construction efficiency is improved. And the later maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of building construction technology, specifically to a corner keel support structure for improving cracking of gypsum board ceilings. Background Technology

[0002] Gypsum board ceilings are now widely used in various decoration projects, but the problem of cracking in gypsum board ceilings persists without an effective solution. The causes of gypsum board cracking can be varied, including but not limited to uneven paint application, the building's own temperature-dependent contraction and expansion, temperature and humidity changes, improper installation, improper use of adhesives, substandard joist quality, improper gypsum board fixing, and inadequate moisture protection. These factors may act individually or in combination, leading to cracking and requiring careful analysis and identification of the cause before repair, increasing the complexity of the repair process. However, the main cause of cracking is the compression from structural stress or an unstable base structure. Therefore, improving the structural stability and support strength of the joist system is an important way to solve the cracking problem. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art by providing a corner keel support structure that improves the cracking of gypsum board ceilings.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A corner keel support structure for improving cracking in gypsum board ceilings includes an inner corner keel and an outer corner keel for connecting and installing gypsum board, and a diagonal brace connected to the inner and outer corner keels. The two ends of the diagonal brace are connected to the two sides of the outer corner keel via corner connectors. The middle of the diagonal brace has a variable cross-section structure, which connects to the corner of the inner corner keel. Several straight keels are also provided between the inner and outer corner keels, and between the outer corner keel and the diagonal brace.

[0006] This corner keel support structure, through the setting of the diagonal bracing members and the improvement of its connection and installation structure, can reduce the problem of gypsum board cracking when using this ceiling keel to install gypsum board, extend the service life of the ceiling, enhance the ceiling's resistance to deformation, and at the same time reduce safety hazards during construction and reduce later maintenance costs.

[0007] The diagonal bracing member can simultaneously connect the inner corner keel and the outer corner keel, forming a triangular reinforcement structure at the corner, which helps to improve the overall stability and reduce the risk of deformation. At the same time, the variable cross-section structure is used to reasonably connect the corner of the inner corner keel and support the straight keel, improving the connection and fixing method at the corner. The connection method of this structure can form a limiting and locking relationship from multiple directions, making the ceiling keel more structurally stable and more resistant to deformation.

[0008] Furthermore, the inner corner keel is also connected to a reinforcing layer that covers the outer corner keel, and the gypsum board is installed below the reinforcing layer.

[0009] Furthermore, the reinforcing layer is a 0.5–2 mm thick galvanized iron sheet. As an additional reinforcing layer, the galvanized iron sheet effectively disperses stress in these stress-concentrated areas, reducing cracking caused by stress concentration. The galvanized iron sheet also possesses high rigidity and strength, providing additional support for the gypsum board ceiling, especially in areas prone to cracking, such as corners and junctions with walls.

[0010] The galvanized iron sheet also has excellent anti-corrosion and anti-rust properties, resisting corrosive factors in humid environments and air, thereby extending the service life of the ceiling. The galvanized iron sheet can also further increase the overall rigidity and deformation resistance of the ceiling, making it more resistant to deformation caused by changes in temperature and humidity or external forces.

[0011] Furthermore, the cross-sections of the diagonal bracing member, the inner side corner keel, and the outer side corner keel are all C-shaped structures.

[0012] Furthermore, the variable cross-section structure includes a first corner located on the inner side wall of the middle part of the diagonal brace and a second corner located on the outer side wall of the middle part of the diagonal brace. The first corner is adapted to and connected to the corner of the inner side corner keel. At least two support platforms are provided at the second corner, and the support platforms are connected to the straight keel.

[0013] Furthermore, the corner connector includes a first connecting plate and a second connecting plate connected at an acute angle. The first connecting plate is connected to the side wall of the outer corner keel, and the end of the diagonal brace is inserted into and abuts against the acute angle structure formed by the first connecting plate and the second connecting plate.

[0014] Furthermore, a third connecting plate is provided on one side of the first connecting plate and the second connecting plate.

[0015] Furthermore, the corner angles of the inner and outer corner keels are both 90°, and the diagonal bracing members are arranged at an inclination of 45°.

[0016] Furthermore, the inner corner keel and the outer corner keel are multi-layered structures arranged vertically, with the reinforcing layer extending from the lower layer to the upper layer.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. Through the setting of the diagonal bracing member and the improvement of its connection and installation structure, this corner keel support structure can reduce the problem of gypsum board cracking when using this ceiling keel to install gypsum board, extend the service life of the ceiling, enhance the deformation resistance of the ceiling, and also reduce safety hazards during construction and reduce later maintenance costs; 2. Setting the diagonal bracing member at the inside corner can further reinforce the corner part of the ceiling. The design of the diagonal bracing member can resist the horizontal shear force, prevent the ceiling from deforming or displacing when subjected to external forces, thereby reducing the probability of gypsum board cracking; 3. The diagonal bracing member can connect the inner corner keel and the outer corner keel at the same time, forming a triangular reinforcement structure at the corner, which is conducive to improving the overall stability and reducing the risk of deformation; The variable cross-section structure is used to rationally connect the corners of the inner side corner keel and support the straight keel, improving the connection and fixing method at the corners. This connection method allows for limiting and locking relationships from multiple directions, resulting in higher structural stability and deformation resistance of the ceiling keel. 4. The galvanized iron sheet, as an additional reinforcing layer, effectively disperses stress in areas of stress concentration, reducing cracking caused by stress concentration. The galvanized iron sheet also has high rigidity and strength, providing additional support for the gypsum board ceiling, especially at corners and junctions with walls—areas prone to cracking—making it more resistant to deformation caused by temperature and humidity changes or external forces. 5. The galvanized iron sheet also has excellent anti-corrosion and rust-proof properties, resisting corrosion in humid environments and air, thereby extending the ceiling's service life. Attached Figure Description

[0018] Figure 1 This is a partial planar line diagram of a corner keel support structure for improving cracking of gypsum board ceiling according to the present invention (the dotted line in the figure is a schematic diagram of the gypsum board arrangement).

[0019] Figure 2 A schematic diagram showing the reinforcement layer and gypsum board installed below the inner and outer corner keels of this utility model;

[0020] Figure 3 for Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 for Figure 1 Enlarged structural diagram at point B;

[0022] Figure 5 This is a three-dimensional structural diagram of the corner connector of this utility model;

[0023] Figure 6 This is a schematic diagram of the multi-layer inner and outer corner keels of this utility model;

[0024] Figure 7 A schematic diagram showing the reinforcement layer installed at the corner keel of the multi-layer inner side of this utility model;

[0025] In the diagram: 1. Inner corner keel; 2. Outer corner keel; 3. Diagonal brace; 4. Variable cross-section structure; 401. First corner; 402. Second corner; 403. Support platform; 5. Corner connector; 501. First connecting plate; 502. Second connecting plate; 503. Third connecting plate; 6. Straight keel; 7. Reinforcing layer; 8. Gypsum board. Detailed Implementation

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Example 1

[0028] like Figures 1-4 As shown, a corner keel support structure for improving cracking of gypsum board ceilings includes an inner corner keel 1 and an outer corner keel 2 for connecting and installing gypsum board 8, and a diagonal brace 3 connected to the inner corner keel 1 and the outer corner keel 2. The two ends of the diagonal brace 3 are respectively connected to the two sides of the outer corner keel 2 through corner connectors 5. The middle part of the diagonal brace 3 is provided with a variable cross-section structure 4, which is connected to the corner of the inner corner keel 1. Several straight keels 6 are also provided between the inner corner keel 1 and the outer corner keel 2, and between the outer corner keel 2 and the diagonal brace 3.

[0029] This corner keel support structure, through the setting of the diagonal bracing member 3 and the improvement of its connection and installation structure, can reduce the problem of gypsum board cracking when using this ceiling keel to install gypsum board, extend the service life of the ceiling, enhance the ceiling's resistance to deformation, and at the same time reduce safety hazards during construction and reduce later maintenance costs.

[0030] The diagonal bracing member 3 (diagonal bracing secondary keel) is installed at the inside corner position, which can further strengthen the corner part of the ceiling; the design of the diagonal bracing member 3 can resist the horizontal shear force and prevent the ceiling from deforming or displacing when subjected to external force, thereby reducing the probability of gypsum board cracking.

[0031] By increasing the number of straight keels and installing diagonal bracing secondary keels, the risk of ceiling cracking during long-term use can be significantly reduced. These measures ensure the integrity and stability of the ceiling structure and extend its service life. Optimizing the keel layout and installing diagonal bracing components improves the ceiling's resistance to deformation under environmental factors such as temperature and humidity, maintaining its flatness and aesthetics.

[0032] When working at corners and junctions with walls, the dimensions and shapes of these keels and diagonal braces are precisely measured and controlled. This meticulous construction method ensures that the size and shape of the ceiling meet the design requirements, thus improving the overall construction quality.

[0033] The reinforced ceiling structure is more stable, which facilitates subsequent construction processes such as plasterboard installation, joint treatment, and surface decoration. At the same time, the stable ceiling structure also reduces safety hazards during construction.

[0034] The diagonal bracing member 3 can simultaneously connect the inner corner keel 1 and the outer corner keel 2, forming a triangular reinforcement structure at the corner, which helps to improve the overall stability and reduce the risk of deformation. At the same time, the variable cross-section structure 4 is used to reasonably connect the corner of the inner corner keel and support the straight keel, improving the connection and fixing method at the corner. The connection method of this structure can form a limiting and locking relationship from multiple directions, making the ceiling keel more structurally stable and more resistant to deformation.

[0035] Furthermore, the inner corner keel 1 is also connected to a reinforcing layer 7 that covers the outer corner keel 2, and the gypsum board 8 is disposed below the reinforcing layer 7.

[0036] The reinforcing layer 7 is a galvanized iron sheet with a thickness of 0.5 to 2 mm, preferably a galvanized iron sheet with a thickness of 1 mm.

[0037] By adding 1mm thick galvanized iron sheets to stress-concentrated areas such as corners of the ceiling joists and junctions with walls, stress can be dispersed. The galvanized iron sheets, acting as an additional reinforcement layer, can effectively disperse stress in these stress-concentrated areas, reducing cracking caused by stress concentration. The galvanized iron sheets also have high rigidity and strength, providing additional support for the gypsum board ceiling, especially in areas prone to cracking, such as corners and junctions with walls.

[0038] The galvanized iron sheet also has excellent anti-corrosion and anti-rust properties, resisting corrosive factors in humid environments and air, thereby extending the service life of the ceiling. The galvanized iron sheet can also further increase the overall rigidity and deformation resistance of the ceiling, making it more resistant to deformation caused by changes in temperature and humidity or external forces.

[0039] Furthermore, the cross-sections of the diagonal bracing member 3, the inner side corner keel 1, and the outer side corner keel 2 are all U-shaped structures (similar to channel steel structures), which facilitates the connection and fixation between the keels. They can also be angle steel, square steel, or other structural types.

[0040] Furthermore, the variable cross-section structure 4 includes a first corner 401 located on the inner side wall of the middle part of the diagonal brace 3, and a second corner 402 located on the outer side wall of the middle part of the diagonal brace 3. The first corner 401 is adapted to and connected to the corner of the inner side corner keel 1. At least two support platforms 403 are provided at the second corner 402, and the support platforms 403 are connected to the straight keel 6.

[0041] The diagonal bracing member with this structure can be longer and is not limited to the position between the inner and outer corners. On the other hand, the first corner 401 can be connected to the inner corner keel to form a limiting and reinforcing structure at the corner point. Alternatively, the second corner 402 can be used to connect to the straight keel 6 to form more internal support structures.

[0042] The first corner 401 is a right-angle structure with two connecting sides, which connect to the two sides of the sidewall at the inner corner keel 1; the second corner 402 can also be a right-angle structure, but in this embodiment it is a trapezoidal structure, with the two hypotenuses of the trapezoid forming the support platform 403, which can be used to connect the straight keel respectively.

[0043] Furthermore, the corner connector 5 includes a first connecting plate 501 and a second connecting plate 502 connected at an acute angle. The first connecting plate 501 is connected to the side wall of the outer corner keel 2, and the end of the diagonal brace 3 is inserted into and abuts against the acute angle structure formed by the first connecting plate 501 and the second connecting plate 502.

[0044] Since the end of the diagonal brace 3 has an acute angle and no end face, it is inconvenient to directly connect it to the outer corner keel. Therefore, the corner connector is provided. The first connecting plate 501 can be used to connect it to the outer corner keel 2 by bolts. The second connecting plate 502 supports and limits the end of the diagonal brace 3. This connection method can make the diagonal brace and the corner connector form a stable connection relationship without bolts.

[0045] Furthermore, such as Figure 5 As shown, a third connecting plate 503 is also provided on one side of the first connecting plate 501 and the second connecting plate 502. The third connecting plate 503 can provide support and limit on the side to prevent the diagonal bracing member from shifting.

[0046] Furthermore, the corner angles of the inner side corner keel 1 and the outer side corner keel 2 are both 90°, and the diagonal bracing member 3 is arranged at an inclination of 45°. Example 2

[0047] Combination Figure 6 and Figure 7 As shown, in this embodiment, the inner side corner keel 1 and the outer side corner keel 2 are a double-layer structure arranged vertically. The connection structure of the inner side corner keel 1 and the outer side corner keel 2 of the upper and lower layers is basically the same as that in Embodiment 1. The main difference is that the reinforcing layer 7, that is, the galvanized iron sheet, is arranged at the bottom and extends from the bottom layer to the top layer, forming a covering structure on the upper and lower sides. This can further improve the strength and stability between the upper and lower keels.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corner keel support structure for improving cracking in gypsum board ceilings, characterized in that, The device includes an inner corner joist and an outer corner joist for connecting and installing gypsum board, and a diagonal brace connected to the inner corner joist and the outer corner joist. The two ends of the diagonal brace are respectively connected to the two sides of the outer corner joist through corner connectors. The middle part of the diagonal brace has a variable cross-section structure, which connects to the corner of the inner corner joist. Several straight joists are also provided between the inner corner joist and the outer corner joist, and between the outer corner joist and the diagonal brace.

2. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 1, characterized in that, The inner corner keel is also connected to a reinforcing layer that covers the outer corner keel, and the gypsum board is installed below the reinforcing layer.

3. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 2, characterized in that, The reinforcing layer is a 0.5-2mm thick galvanized iron sheet.

4. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 1, characterized in that, The cross-sections of the diagonal bracing member, the inner side corner keel, and the outer side corner keel are all of the C-shape structure.

5. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 1, characterized in that, The variable cross-section structure includes a first corner located on the inner side wall of the middle part of the diagonal brace and a second corner located on the outer side wall of the middle part of the diagonal brace. The first corner is adapted to and connected to the corner of the inner side corner keel. At least two support platforms are provided at the second corner, and the support platforms are connected to the straight keel.

6. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 1, characterized in that, The corner connector includes a first connecting plate and a second connecting plate connected at an acute angle. The first connecting plate is connected to the side wall of the outer corner keel, and the end of the diagonal brace is inserted into and abuts against the acute angle structure formed by the first connecting plate and the second connecting plate.

7. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 6, characterized in that, A third connecting plate is also provided on one side of the first connecting plate and the second connecting plate.

8. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 1, characterized in that, The corner angles of the inner and outer corner keels are both 90°, and the diagonal bracing is arranged at an inclination of 45°.

9. The corner keel support structure for improving cracking of gypsum board ceilings according to claim 2, characterized in that, The inner corner keel and the outer corner keel are multi-layered structures arranged vertically, with the reinforcement layer extending from the lower layer to the upper layer.

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