A concealed access hole structure for a ceiling

By using a double-layer gypsum board and aluminum profile frame structure, the problems of easy deformation and weak welding of traditional access panel structures are solved, thus improving the stability and aesthetics of the access panel.

CN224495550UActive Publication Date: 2026-07-14SHENZHEN HUAZHU TECH CONSTR GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN HUAZHU TECH CONSTR GRP CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional access panel structures are prone to moisture damage and deformation, and their welds are not strong enough, resulting in poor structural stability. Furthermore, the precision of on-site processing is difficult to control, affecting the aesthetics and functionality of the building.

Method used

The structure uses a double-layer gypsum board and aluminum profile frame, and reinforces the connection with aluminum profile edge finishing and L-shaped connectors to form a hidden access panel, thus solving the structural stability problem.

Benefits of technology

The access panel is seamlessly integrated with the ceiling, improving structural stability and aesthetics, and ensuring convenient opening and closing of the access panel.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a hidden access hole structure for ceiling, and the access hole of ceiling comprises a plasterboard, light steel keel, F aluminum profile, a hanging rib and a buckle piece, the hanging rib is arranged below the building floor, the hanging rib is connected with the light steel keel through the buckle piece, the light steel keel is fixed on the plasterboard, the plasterboard is provided with an access hole, the plasterboard of access hole is provided with an F profile closing edge, and the access cover plate comprises a plasterboard, aluminum profile and L type connecting piece, the access cover plate is placed in the access hole, the periphery of plasterboard is processed through the aluminum profile closing edge, the aluminum profile is provided with a cavity, and the both ends of L type connecting piece are embedded into adjacent aluminum profiles respectively. The utility model discloses access cover plate adopts double-layer plasterboard and aluminum profile, the periphery of double-layer plasterboard is processed through the aluminum profile closing edge, the aluminum profile is obliquely spliced, the oblique splicing position is reinforced and connected through L type connecting piece, constitutes the aluminum profile frame, solves the problems that wooden frame is easy to be deformed due to damp, T type keel is not firm in welding or splicing, and the stability of structure is poor.
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Description

Technical Field

[0001] This utility model specifically relates to a concealed access panel structure for ceilings, belonging to the field of ceiling engineering technology. Background Technology

[0002] In modern architectural decoration projects, in addition to completing the basic hard decoration construction, a series of building equipment systems must be installed, including but not limited to high-voltage and low-voltage systems, heating, ventilation, and air conditioning (HVAC) systems, and water supply and drainage systems. The various pipelines, equipment, and facilities in these systems are usually arranged inside the ceiling structure to achieve rational space utilization and overall aesthetics. To ensure the maintainability and repairability of these concealed facilities throughout the building's lifespan, the reasonable placement of access panels becomes an indispensable and crucial aspect of ceiling structural design.

[0003] Currently, traditional access panels are mostly fabricated on-site, assembled using wooden frames or T-shaped light steel keels, with openings pre-drilled in plasterboard and then covered with simple covers or edge sealing. This construction method has the following technical drawbacks: wooden frames are prone to moisture damage and warping; the welding or splicing of the T-shaped keels is not secure, resulting in poor structural stability. On-site fabrication precision is difficult to control, leading to uneven edges on the access panels, inconsistencies with the ceiling surface, and a tendency for cracks, bulges, and other quality defects. These problems not only reduce the overall quality of building decoration projects but also negatively impact the aesthetics and functionality of architectural spaces, especially in high-end commercial spaces, public buildings, and luxury residences.

[0004] Therefore, in order to address the shortcomings of existing technologies, a concealed access panel structure for ceilings is proposed. Utility Model Content

[0005] The purpose of this invention is to provide a concealed access panel structure for ceilings to solve the problems mentioned in the background art.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a concealed access panel structure for ceilings, comprising a ceiling access panel and an access cover plate disposed below the building floor slab, characterized in that:

[0007] The ceiling access panel includes gypsum board, light steel keel, F-shaped aluminum profile, suspension rods, and fasteners. The suspension rods are provided under the building floor slab. The suspension rods are fixedly connected to the light steel keel through the fasteners. The light steel keel is fixed to the gypsum board. An access panel is provided in the middle of the gypsum board. F-shaped aluminum profiles are installed around the gypsum board of the access panel for edge finishing.

[0008] The inspection cover plate includes two layers of gypsum board, an aluminum profile, and an L-shaped connector. The inspection cover plate is placed in the inspection opening. The four edges of the gypsum board are finished by the aluminum profile. The aluminum profile has a cavity. The L-shaped connector has screw holes. The two ends of the L-shaped connector are respectively embedded into the adjacent aluminum profile. Screws fix the L-shaped connector in the cavity through the screw holes.

[0009] Furthermore, the gypsum board is fixed to the light steel keel by screws.

[0010] Furthermore, the aluminum profile is provided with a groove, and the gypsum board of the inspection cover is inserted into the groove.

[0011] Furthermore, the aluminum profiles are joined diagonally using the L-shaped connectors to strengthen the connection and form the aluminum profile frame.

[0012] Furthermore, latex is applied between the upper and lower layers of gypsum board to enhance the adhesion of the gypsum board surfaces.

[0013] The beneficial effects of this utility model are:

[0014] The inspection cover of this utility model adopts double-layer gypsum board and aluminum profile frame. The four edges of the double-layer gypsum board are edged with aluminum profile. The four aluminum profiles are diagonally spliced, and the diagonally spliced ​​positions are reinforced by L-shaped connectors to form aluminum profile frame. This solves the problem that wooden frames are prone to moisture and deformation, and that the T-shaped keel is not firmly welded or spliced, resulting in poor structural stability. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the maintenance opening of this utility model;

[0018] Figure 4 This is an exploded view of the inspection cover plate of this utility model;

[0019] In the diagram: 1. Building floor slab; 2. Ceiling access panel; 2.1. F-shaped aluminum profile; 2.2. Screw; 2.3. Light steel keel; 2.4. Fastener; 2.5. Hanging rod; 2.6. Access opening; 3. Access cover plate; 3.1. Aluminum profile frame; 3.11. Aluminum profile; 3.101. Cavity; 3.102. Groove; 3.2. Latex; 3.3. L-shaped connector; 3.31. Screw hole; 3.4. Screw; 4. Gypsum board. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-4 As shown, Figures 1-4 The diagram schematically illustrates a concealed access panel structure for ceilings according to the present invention.

[0022] A concealed access panel structure for ceilings includes a ceiling access panel 2 and an access cover 3 disposed below a building floor slab 1, characterized in that:

[0023] The ceiling access panel 2 includes gypsum board 4, light steel keel 2.3, F aluminum profile 2.1, suspension rod 2.5 and fastener 2.4. The suspension rod 2.5 is provided under the building floor slab 1. The suspension rod 2.5 is fixedly connected to the light steel keel 2.3 through the fastener 2.4. The light steel keel 2.3 is fixed on the gypsum board 4. The gypsum board 4 has an access panel 2.6 in the middle. The gypsum board 4 around the access panel 2.6 is edged with F aluminum profile 2.1.

[0024] The inspection cover 3 includes two layers of gypsum board 4, an aluminum profile 3.11, and an L-shaped connector 3.3. The four edges of the gypsum board 4 are edged by the aluminum profile 3.11. The aluminum profile 3.11 has a cavity 3.101. The L-shaped connector 3.3 has a screw hole 3.31. The two ends of the L-shaped connector 3.3 are respectively embedded into the adjacent aluminum profile 3.11. The screw 3.4 fixes the L-shaped connector 3.3 in the cavity 3.101 through the screw hole 3.31.

[0025] Among them, the F aluminum profile 2.1 around the inspection opening 2.6 is used not only for edge finishing but also for caulking to achieve a smooth transition with the ceiling surface.

[0026] Among them, a light steel keel 2.3 is installed on the ceiling inspection port 2 to enhance the load-bearing capacity and stability of the overall structure.

[0027] Furthermore, the gypsum board 4 is fixed to the light steel keel 2.3 by screws 2.2.

[0028] Furthermore, the aluminum profile 3.11 is provided with a groove 3.102, and the gypsum board 4 of the inspection cover 3 is inserted into the groove 3.102.

[0029] Among them, the edge of the gypsum board 4 of the inspection cover plate 3 is inserted into the groove 3.102 to limit and fix the gypsum board 4 to the aluminum profile.

[0030] The upper end of the aluminum profile 3.11 is provided with a cavity 3.101, which is used to accommodate one end of the L-shaped connector 3.3. When both ends of the L-shaped connector 3.3 are respectively inserted into the cavities of the adjacent aluminum profile 3.11, the L-shaped connector 3.3 and the aluminum profile 3.11 are fixedly connected by screws 3.4 and screw holes 3.31 to achieve a locked state.

[0031] Furthermore, aluminum profile 3.11 is joined by L-shaped connectors 3.3 at an angle to strengthen the connection and form aluminum profile frame 3.1.

[0032] Furthermore, latex 3.2 is applied between the upper and lower layers of gypsum board 4 to enhance the adhesion of the gypsum board 4 surfaces.

[0033] The beneficial effects of this utility model are:

[0034] The inspection cover of this utility model adopts double-layer gypsum board and aluminum profile frame. The four edges of the double-layer gypsum board are edged with aluminum profile. The four aluminum profiles are diagonally spliced, and the diagonally spliced ​​positions are reinforced by L-shaped connectors to form aluminum profile frame. This solves the problem that wooden frames are prone to moisture and deformation, and that the T-shaped keel is not firmly welded or spliced, resulting in poor structural stability.

[0035] Installation steps of this utility model:

[0036] Step 1: Install light steel keel 2.3 around the inspection opening 2.6 and firmly connect it with the suspension rod 2.5 through fasteners 2.4. Lay gypsum board 4 on the ceiling inspection opening 2 and fix it to the light steel keel 2.3 with screws 2.2. The inspection opening 2.6 is installed on the gypsum board 4 according to the design dimensions, ensuring that the edges of the opening are neat and the position is accurate.

[0037] Step 2: F-type aluminum profile 2.1 edge finishing. Install F-type aluminum alloy profile 2.1 around the four sides of the inspection opening 2.6 and finish the edges. The inspection cover plate 3 includes double-layer gypsum board 4 and aluminum profile frame 3.1. Install the inspection cover plate 3. Place the completed inspection cover plate 3 into the inspection opening 2.6 and adjust its position to ensure that it is flush with the ceiling inspection opening 2.

[0038] Step 3: Surface decoration treatment. The surface of the inspection cover 3 is the same as that of the conventional gypsum board 4. It is decorated by plastering, sanding, and spraying to achieve seamless integration with the ceiling. Check whether the inspection cover 3 can be opened easily and whether it is completely flush with the ceiling inspection opening 2 after closing, without obvious gaps or protrusions.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention 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 invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A concealed access panel structure for ceilings, comprising a ceiling access panel and an access cover disposed below the building floor slab, characterized in that: The ceiling access panel includes gypsum board, light steel keel, F-shaped aluminum profile, suspension rods, and fasteners. The suspension rods are provided under the building floor slab. The suspension rods are fixedly connected to the light steel keel through the fasteners. The light steel keel is fixed to the gypsum board. An access panel is provided in the middle of the gypsum board. F-shaped aluminum profiles are installed around the gypsum board of the access panel for edge finishing. The inspection cover plate includes two layers of gypsum board, an aluminum profile, and an L-shaped connector. The inspection cover plate is placed in the inspection opening. The four edges of the gypsum board are finished by the aluminum profile. The aluminum profile has a cavity. The L-shaped connector has screw holes. The two ends of the L-shaped connector are respectively embedded into the adjacent aluminum profile. Screws fix the L-shaped connector in the cavity through the screw holes.

2. The concealed access panel structure for ceilings as described in claim 1, characterized in that, The gypsum board is fixed to the light steel keel by screws.

3. A concealed access panel structure for ceilings as described in claim 2, characterized in that, The aluminum profile has a groove, and the gypsum board of the inspection cover is inserted into the groove.

4. A concealed access panel structure for ceilings as described in claim 3, characterized in that, The aluminum profiles are joined diagonally by the L-shaped connectors to strengthen the connection and form the aluminum profile frame.

5. A concealed access panel structure for ceilings as described in claim 4, characterized in that, Latex is applied between the upper and lower layers of gypsum board to enhance the adhesion of the gypsum board surfaces.