A prefabricated ceiling structure with overlapping construction
The prefabricated ceiling structure with overlapping construction, utilizing a combination design of edge keel, main keel and deformable keel, solves the problem of cumbersome installation of existing prefabricated aluminum panel ceilings, and achieves screwless installation and efficient and precise fixing of decorative panels.
Patent Information
- Application Number
- CN202522689110.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-18
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-18
AI Technical Summary
The existing prefabricated aluminum panel ceiling installation is cumbersome, requires screw fixing, has insufficient installation accuracy, and the quality is difficult to guarantee.
The prefabricated ceiling structure with overlapping construction utilizes a combination design of edge keel, main keel, deformable keel and decorative panels. It achieves screwless installation through the overlapping of stepped surfaces and folds, and uses the C-shaped structure of deformable keel to provide bending and torsional stiffness to ensure the stability of the panels.
It achieves screwless fixing, simple and efficient installation, ensures the accuracy between panels, and improves project quality.
Smart Images

Figure CN224943349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building decoration technology, specifically to a prefabricated ceiling structure with an overlapping construction. Background Technology
[0002] With the development of the decoration industry, prefabricated decoration technology has been widely promoted and applied. However, most prefabricated aluminum panel ceilings are installed and fixed with screws. This not only requires the preparation of screws and a hand drill, which is cumbersome, but also makes the installation operation inconvenient, the installation accuracy insufficient, and the requirements for the workers' operating skills are high, making it difficult to guarantee the installation quality of the ceiling.
[0003] Therefore, in response to the above problems, a prefabricated ceiling structure with overlapping construction and its installation method are proposed. Utility Model Content
[0004] The purpose of this utility model is to overcome the existing defects and provide a prefabricated ceiling structure with an overlapping structure, which can solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a prefabricated ceiling structure with an overlapping structure, comprising edge keel, main keel, deformable keel and decorative panel; The edge keel is fixed to the wall and has a stepped design; It also includes hangers and hangers, wherein the main keel is fixed to the building roof by the hangers and the hangers are fixedly installed on the main keel; The deformable keel is connected to the main keel by a hanger, and its end overlaps the upper step surface of the side keel. The bottom plate of the deformable keel is provided with a bendable flap. The decorative panel has a main aluminum plate, as well as an integrally formed overlapping part and hanging piece.
[0006] Preferably, the step design of the edge keel includes an upper step surface and a lower step surface, wherein the lower step surface is used to directly support the overlapping part of the first decorative panel.
[0007] Preferably, the cross-section of the deformable keel is C-shaped, including a bottom plate, a side plate and a top plate. The bottom plate is provided with a pair of mirror-image hollow grooves, which enclose the folded piece. The connection between the folded piece and the bottom plate is a bent part.
[0008] Preferably, the flap can be bent around the bending portion under the action of external force until it forms a perpendicular angle with the base plate.
[0009] Preferably, the decorative panel further includes a side and a supporting portion, the side, the overlapping portion and the supporting portion are fixed around the main aluminum plate, the hanging piece is fixed on the supporting portion and forms a gap with the main aluminum plate.
[0010] Preferably, two adjacent decorative panels are connected by an overlapping method, wherein the overlapping part of the later-installed decorative panel is inserted into the groove formed between the support part of the earlier-installed decorative panel and the deformable keel.
[0011] Preferably, the hanging component has a T-shaped structure design, and the deformable keel is sleeved with the hanging component.
[0012] Preferably, the main aluminum plate of the decorative panel is installed facing downwards, and the part of its top surface near the edge keel is in contact with the bottom of the deformable keel.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This prefabricated ceiling structure with overlapping construction achieves the sequential installation of aluminum panels by overlapping the supporting parts and overlapping parts of two adjacent overlapping aluminum panels. When used with deformable keel, no screw fixing is required, and no other tools are needed. It can be installed by hand, which is simple and efficient. At the same time, the aluminum panels are all standardized and tightly overlapped, which can ensure the installation accuracy between the panels and effectively improve the project quality. Attached Figure Description
[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a side view of the keel structure of this utility model; Figure 2 This is a side view of the decorative panel structure of this utility model after assembly; Figure 3 This is a side view of the hanging structure of this utility model; Figure 4 for Figure 2 Enlarged view of the structure at point A in the middle; Figure 5 for Figure 3 Enlarged view of the structure at point B in the middle; Figure 6 This is a three-dimensional axonometric drawing of the decorative panel structure of this utility model.
[0015] In the diagram: 1. Main keel; 2. Side keel; 3. Deformed keel; 31. Folding piece; 32. Bending part; 4. Hanging piece; 5. Decorative panel; 51. Main aluminum plate; 52. Side; 53. Overlap part; 54. Supporting part; 55. Hanging piece; 6. Hanging piece. Detailed Implementation
[0016] 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.
[0017] like Figures 1 to 6 As shown, a prefabricated ceiling structure with an overlapping construction includes an edge keel 2, a main keel 1, a deformable keel 3, and a decorative panel 5. The edge keel 2 is fixed to the wall and has a stepped design. The stepped design of the edge keel 2 includes an upper stepped surface and a lower stepped surface. The lower stepped surface is used to directly support the overlapping part 53 of the first decorative panel 5. The upper stepped surface of the edge keel 2 provides an accurate overlapping position for the deformable keel 3, and the lower stepped surface provides direct bottom support for the overlapping part 53 of the first decorative panel 5.
[0018] It also includes hangers 4 and hangers 6. The main keel 1 is fixed to the building roof through hangers 4, and hangers 6 are fixedly installed on the main keel 1. Hangers 6 have a T-shaped structure design. Deformable keel 3 is sleeved with hangers 6. The hanger 4 consists of expansion bolts and multiple nuts. First, the expansion bolts are fixed to the building roof, and then the nuts and bolts are locked together. The deformable keel 3 can then be fixed to the building roof through hangers 4.
[0019] The deformable keel 3 is connected to the main keel 1 by the hanger 6, and its end overlaps the upper step surface of the side keel 2. The bottom plate of the deformable keel 3 is provided with a bendable flap 31.
[0020] The decorative panel 5 has a main aluminum plate 51, as well as an integrally formed overlapping part 53 and a hanging piece 55. The main aluminum plate 51 of the decorative panel 5 is installed facing downwards, and the part of its top surface near the edge keel 2 contacts the bottom of the deformed keel 3.
[0021] Detailed implementation process and principle explanation: According to the ceiling height, the edge keel 2 is installed on the surrounding walls using steel nails, and the edge keel 2 has a stepped design. Then, the main keel 1 is fixed above the edge keel 2 using the hanger 4. Then, the deformable keel 3 is fitted onto the T-shaped hanger 6 of the main keel 1, so that the deformable keel 3 overlaps on the upper stepped surface of the edge keel 2. At the same time, before overlapping the deformable keel 3, the folded pieces 31 of the deformable keel 3 are folded up to form the ceiling frame. The first decorative panel 5 is installed with the main aluminum plate 51 of the first decorative panel 5 facing down, and the top resting on the bottom of the deformable keel 3 near the edge keel 2. Then, the decorative panel 5 is moved horizontally towards the edge keel 2 so that the overlapping part 53 of the decorative panel 5 is inserted. The decorative panel 5 is inserted into the groove formed between the deformable keel 3 and the edge keel 2, while the hanging piece 55 of the decorative panel 5 is inserted into the gap formed between the folded piece 31 of the deformable keel 3 and the bottom plate of the deformable keel 3. The lower step of the edge keel 2 supports the overlapping part 53 of the decorative panel 5, and the folded piece 31 of the deformable keel 3 supports the hanging piece 55 of the decorative panel 5. The overlapping part 53 of the next decorative panel 5 is inserted into the groove formed between the supporting part 54 of the first decorative panel 5 and the deformable keel 3, while the hanging piece 55 of the decorative panel 5 is inserted into the gap formed between the folded piece 31 of the deformable keel 3 and the bottom plate of the deformable keel 3. Other decorative panels 5 are installed in this manner.
[0022] Example 1: The decorative panel 5 also includes a side 52 and a support 54. The side 52, the overlapping part 53 and the support 54 are fixed around the main aluminum plate 51. The hanging piece 55 is fixed on the support 54 and forms a gap with the main aluminum plate 51. Adjacent decorative panels 5 are connected by overlapping. The overlapping part 53 of the later-installed decorative panel 5 is inserted into the groove formed between the support 54 of the first-installed decorative panel 5 and the deformable keel 3.
[0023] The overlapping part 53 is inserted into the groove of the side keel 2 in the horizontal direction to obtain bottom support; the hanging piece 55 is inserted into the folded piece 31 of the deformable keel 3 in the vertical direction to obtain lateral hanging; this two-way constraint ensures that the board is extremely stable and will not sag or warp. Adjacent boards are connected by inserting the overlapping part 53 of the front decorative board 5 into the supporting part 54 of the rear decorative board 5; the whole process only requires horizontal movement and insertion, without any screws or glue, the installation speed is extremely fast, and there is no damage to the surface.
[0024] Example 2: The cross-section of the deformable keel 3 is C-shaped. This C-shaped structure provides the deformable keel 3 with excellent bending and torsional stiffness, enabling it to reliably bear the weight from multiple decorative panels 5 and maintain linear straightness, preventing sagging deformation. It includes a bottom plate, side plates, and a top plate. The bottom plate has a pair of mirror-image hollow grooves. The hollow grooves enclose to form a flap 31. The hollow grooves are not simple holes. Their shape is designed to be approximately U-shaped, so that the bottom plate material surrounded by them forms an independent tongue-shaped area, namely the flap 31. The connection between the flap 31 and the bottom plate is a bending part 32. The only part where the flap 31 is connected to the bottom plate body is a narrow strip of connecting material, namely the bending part 32, which serves as a precisely positioned, pre-weakened hinge. The flap 31 can bend around the bending part 32 under the action of external force until it forms a perpendicular angle with the bottom plate.
[0025] During installation, the worker applies downward pressure to the flap 31 from inside the C-shaped groove of the deformable keel 3. The flap 31 undergoes plastic deformation around the bending part 32 and rotates downward. When the rotation angle reaches ninety degrees, the flap 31 becomes perpendicular to the base plate. At this moment, the originally flat base plate area creates a sturdy metal "hook" perpendicular to the base plate. After the flap 31 is bent and erected, a continuous narrow gap is naturally formed between its boundary and the base plate. The hanging piece 55 of the decorative panel 5 can be inserted horizontally into this gap, and its weight acts directly on the top of the erected flap 31. The flaps 31 on multiple deformable keels 3 work together to support and hold the decorative panel 5 firmly.
[0026] Folding piece 31 is directly processed from the body material of deformable keel 3 without the need for any additional parts, which greatly simplifies the supply chain, reduces costs, and avoids failures caused by small parts falling off.
[0027] An installation method for a prefabricated suspended ceiling using an overlapping structure includes the following steps: S1: Install the edge keel 2 on the surrounding walls according to the ceiling height; S2: Use the hanger 4 to fix the main keel 1 above the side keel 2; S3: Use the hanging piece 6 of the main keel 1 to set the deformable keel 3, overlap the deformable keel 3 on the upper step surface of the side keel 2, and bend the fold piece 31 of the deformable keel 3 to form a hanging structure. S4: Install the first decorative panel 5, insert its overlapping part 53 into the groove between the deformed keel 3 and the side keel 2, and insert its hanging piece 55 under the folding piece 31 of the deformed keel 3; S5: Install the subsequent decorative panels 5 in sequence, and insert the overlapping part 53 of the subsequently installed decorative panel 5 into the groove between the supporting part 54 of the previous decorative panel 5 and the deformable keel 3.
[0028] In one specific embodiment, the operation of applying pressure to the folding piece to bend it in step S3 is completed before the deformable keel 3 is overlapped with the side keel 2 and before the first decorative panel 5 is installed.
[0029] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A prefabricated ceiling structure employing an overlapping construction, characterized in that, It includes edge keel (2), main keel (1), deformable keel (3) and decorative panel (5); The edge keel (2) is fixed to the wall and has a stepped design; It also includes a hanger (4) and a hanger (6), wherein the main keel (1) is fixed to the roof of the building by the hanger (4), and the hanger (6) is fixedly installed on the main keel (1); The deformable keel (3) is connected to the main keel (1) by a hanger (6) and its end overlaps the upper step surface of the side keel (2). The bottom plate of the deformable keel (3) is provided with a bendable flap (31). The decorative panel (5) has a main aluminum plate (51), as well as an integrally formed overlapping part (53) and a hanging piece (55).
2. The prefabricated ceiling structure with overlapping construction according to claim 1, characterized in that, The step design of the edge keel (2) includes an upper step surface and a lower step surface, wherein the lower step surface is used to directly support the overlapping part (53) of the first decorative panel (5).
3. The prefabricated ceiling structure with overlapping construction according to claim 1, characterized in that, The cross section of the deformable keel (3) is C-shaped, including a bottom plate, a side plate and a top plate. The bottom plate is provided with a pair of mirror-image hollow grooves, which enclose the folded piece (31). The connection between the folded piece (31) and the bottom plate is a bent part (32).
4. A prefabricated ceiling structure with an overlapping construction as described in claim 3, characterized in that, The flap (31) can be bent around the bending part (32) under the action of external force until it forms a perpendicular angle with the base plate.
5. A prefabricated ceiling structure with an overlapping construction as described in claim 1, characterized in that, The decorative panel (5) also includes a side (52) and a support (54). The side (52), the overlapping part (53) and the support (54) are fixed around the main aluminum plate (51). The hanging piece (55) is fixed on the support (54) and forms a gap with the main aluminum plate (51).
6. A prefabricated ceiling structure with an overlapping construction as described in claim 5, characterized in that, The two adjacent decorative panels (5) are connected by an overlapping method, wherein the overlapping part (53) of the later-installed decorative panel (5) is inserted into the groove formed between the support part (54) of the first-installed decorative panel (5) and the deformable keel (3).
7. A prefabricated ceiling structure with an overlapping construction as described in claim 1, characterized in that, The hanging piece (6) has a T-shaped structure design, and the deformable keel (3) is sleeved with the hanging piece (6).
8. A prefabricated ceiling structure with an overlapping construction as described in claim 1, characterized in that, The main aluminum plate (51) of the decorative panel (5) is installed facing downwards, and the part of its top surface near the side keel (2) is in contact with the bottom of the deformable keel (3).
