Fabricated ceiling and installation method

Abstract

This invention belongs to the field of prefabricated building technology and discloses a prefabricated ceiling and its installation method. A supporting component is provided between the keel component and the panel. The supporting component includes a hanger connecting the keel component and a supporting rod for connecting the panel. The panel has a bearing groove formed by bending at least two opposite sides. The bearing groove extends along the edge of the panel and has an open structure design at the corner of the panel to facilitate the lateral sliding or insertion of the supporting rod. This invention provides an independent supporting component composed of hangers and supporting rods between the keel component and the panel, so that the support of the decorative panel no longer depends on the continuous passage of the secondary keel. When the secondary keel path encounters electromechanical pipelines such as fire sprinkler pipes, it can be directly bypassed without on-site cutting; while the panel obtains effective support through adjustable supporting rods.

Description

Technical Field

[0001] This invention belongs to the field of prefabricated building technology, specifically relating to a prefabricated ceiling and its installation method. Background Technology

[0002] A typical prefabricated ceiling system usually consists of hangers, main keel, secondary keel and prefabricated decorative panels. The secondary keel is arranged in a modular pattern to form a regular grid support structure, which is used to evenly bear and accurately fix the decorative panels, thereby ensuring the flatness, rigidity and assembly efficiency of the overall system.

[0003] However, in actual engineering implementation, this system faces a long-standing and difficult-to-coordinate contradiction: an irreconcilable spatial conflict exists between the layout requirements of building electromechanical pipelines (especially the branch pipes of automatic fire sprinkler systems) and the standardized arrangement of secondary joists. According to relevant regulations, sprinkler heads must be evenly distributed according to the maximum protection area, and their branch pipes must be vertically led out from the structural floor slab, with sufficient space reserved below the finished ceiling surface for installation and maintenance. Since the sprinkler head locations are determined by hydraulic calculations and fire compartmentation, they often cannot be perfectly aligned with the ceiling joist module beforehand. To meet fire safety acceptance requirements, the traditional construction practice is usually to cut the secondary joists on-site at the sprinkler head exit point, creating a local break. While this "cut first, then patch" approach can temporarily solve the pipeline crossing problem, it brings a series of serious consequences:

[0004] Firstly, as the main supporting component of the panel, the secondary keel is disrupted when it is cut, which leads to an increase in the cantilever length of the keel segments on both sides of the break and a significant decrease in local load-bearing capacity. This can easily cause the middle of adjacent decorative panels to sag, the joints to become misaligned, or even crack. Secondly, if effective connection or reinforcement measures are not taken at the broken ends of the keel (such as adding short-span connectors, corner brackets, or locally reinforced keels), the rigidity and integrity of the entire ceiling grid will be weakened. During long-term use, it is prone to problems such as abnormal noise and deformation due to temperature changes, floor micro-vibration, or personnel movement. Furthermore, on-site cutting, positioning, and reinforcement highly depend on the experience and sense of responsibility of workers. The lack of standardized process guidance makes it easy to have common quality defects such as uneven cuts, loose connections, and insufficient reinforcement, which not only increases the risk of rework but also prolongs the construction period and raises costs. More seriously, in the later operation and maintenance stage, if it is necessary to repair, modify, or adjust the position of the sprinkler system, the original keel system that has been cut off is difficult to restore to its initial stress state. Often, it is necessary to partially dismantle the ceiling and re-lay out the keel, causing secondary damage and waste of resources. Summary of the Invention

[0005] In view of this, the purpose of this invention is to provide a prefabricated ceiling and its installation method to solve the problems existing in the background art.

[0006] To solve the above-mentioned technical problems, the first technical solution of the present invention is a prefabricated ceiling, including a keel component and panels. A support component is provided between the keel component and the panels. The support component includes a hanger for connecting the keel component and a support rod for connecting the panels. The panels have bearing grooves formed by bending at least two opposite sides. The bearing grooves extend along the edges of the panels and have an open structure design at the corners of the panels to facilitate the side sliding or insertion of the support rods. The support rods pass through the openings of the bearing grooves and are embedded in the grooves to effectively support the panels. The panels are suspended below the keel component by the hanger, thereby realizing the prefabricated hoisting and support of the panels.

[0007] Preferably, the cross-sectional profile of the contact portion between the support rod and the bearing groove is adapted to the inner cavity profile of the bearing groove at the end opening.

[0008] Preferably, the keel component includes a secondary keel, which has a mounting groove along its length. The upper end of the hanger is slidably disposed in the mounting groove and locked by a first fastener to achieve position adjustment of the hanger along the length of the secondary keel. The support rod is connected to the lower end of the hanger by a second fastener, which, in conjunction with an elongated hole or a sliding groove structure, allows the support rod to be adjusted and fixed in position relative to the hanger in the horizontal direction. During the secondary keel installation phase, the building's electromechanical pipelines can be directly bypassed, avoiding on-site cutting of the secondary keel and the formation of local breaks. At the same time, by adjusting the horizontal position of the support rod, the support rod is offset to the effective support area of ​​the secondary keel that is not obstructed, thereby providing stable support for the corresponding panels.

[0009] Furthermore, the support rod adopts a telescopic structure, and the length of the support rod can be adjusted during installation; the support rod passes through the bearing grooves of two adjacent plates along its own length direction, providing common support for the adjacent plates.

[0010] Furthermore, the bearing groove is formed by bending the edge of the plate twice at 90° to form a right-angled groove structure with a U-shaped or rectangular cross-section.

[0011] Furthermore, the bearing groove is formed by bending the edge of the plate at a angle greater than 90°, thus forming an open groove structure with a V-shaped or triangular cross-section.

[0012] Furthermore, by adjusting the horizontal distance between the two support rods on the same plate, without changing the installation height of the hanger relative to the keel component, the installation height of the plate can be finely adjusted by utilizing the change in the contact point position between the V-shaped bearing groove and the support rod, thereby compensating for on-site construction errors or meeting local leveling requirements.

[0013] To solve the above-mentioned technical problems, the second technical solution of the present invention is a prefabricated ceiling installation method. It applies the prefabricated ceiling method described in the first technical solution, which uses the edge of the panel to form a bearing groove through two consecutive 90° bends. The installation method includes the following steps:

[0014] Step S1, Hanger and Secondary Keel Assembly: Before the secondary keel is laid, slide the upper end of the hanger into the mounting groove of the secondary keel; Regarding the connection between the hanger and the secondary keel via the first fastener, adopt any of the following strategies: directly tighten the first fastener to fix the position of the hanger; or temporarily leave the first fastener untightened so that the hanger can slide along the length of the secondary keel, so that the position can be adjusted later according to actual needs.

[0015] Step S2, Layout of secondary keel: Arrange the secondary keels at equal intervals according to the design module in the ceiling space; when the layout path of a secondary keel is obstructed by building electromechanical pipelines, adopt any of the following avoidance strategies: only shift the obstructed secondary keel as a whole to make way, and the remaining secondary keels still maintain the original equidistant layout; or take the shifted position of the obstructed secondary keel as the new reference, and the subsequent secondary keels continue to be laid out sequentially according to the original module spacing from this starting point.

[0016] Step S3, Assembly of Support Components: Connect the support rod to the lower end of the hanger using the second fastener. Adjust the horizontal position of the support rod using the elongated hole or sliding groove structure on the hanger. When the path of the support rod is blocked by building electromechanical pipelines, shift the support rod laterally to an unobstructed area. To ensure effective support for the target panel, other support rods corresponding to the same or adjacent panels should be adjusted in coordination according to the position of the shifted support rods to avoid uneven stress, twisting, or misalignment of the panels due to local single-point shift.

[0017] Step S4, Installation of the plate: Align the opening of the plate's bearing groove with the positioned support rod, so that the support rod passes through and is embedded in the bearing groove to form a stable support for the plate;

[0018] Step S5, Alternating Assembly and Leveling: During large-area installation, Step S3 and Step S4 are executed alternately, and the position of the support rods and the installation sequence of the plates are dynamically adjusted according to the actual site conditions to achieve whole-body assembly installation without cutting or interruption.

[0019] To solve the above-mentioned technical problems, the third technical solution of the present invention is a prefabricated ceiling installation method, which applies the prefabricated ceiling described in the first technical solution by forming a bearing groove by bending the edge of the panel once by more than 90°. The installation method includes the following steps:

[0020] Step S1, Hanger and Secondary Keel Assembly: Before the secondary keel is laid, slide the upper end of the hanger into the mounting groove of the secondary keel, and do not tighten the first fastener yet, so that the hanger can slide along the length of the secondary keel. This allows the horizontal height of the panel to be finely adjusted by adjusting the spacing between adjacent hangers, thereby achieving precise leveling of the ceiling system.

[0021] Step S2, Layout of secondary keel: Arrange the secondary keels at equal intervals according to the design module in the ceiling space; when the layout path of a secondary keel is obstructed by building electromechanical pipelines, adopt any of the following avoidance strategies: only shift the obstructed secondary keel as a whole to make way, and the remaining secondary keels still maintain the original equidistant layout; or take the shifted position of the obstructed secondary keel as the new reference, and the subsequent secondary keels continue to be laid out sequentially according to the original module spacing from this starting point.

[0022] Step S3, Assembly of Support Components: Connect the support rod to the lower end of the hanger using the second fastener. Adjust the horizontal position of the support rod using the elongated hole or sliding groove structure on the hanger. When the path of the support rod is blocked by building electromechanical pipelines, shift the support rod laterally to an unobstructed area. To ensure effective support for the target panel, other support rods corresponding to the same or adjacent panels should be adjusted in coordination according to the position of the shifted support rods to avoid uneven stress, twisting, or misalignment of the panels due to local single-point shift.

[0023] Step S4, Installation of the plate: Align the opening of the plate's bearing groove with the positioned support rod, so that the support rod passes through and is embedded in the bearing groove to form a stable support for the plate;

[0024] Step S5, Alternating Assembly and Leveling: During large-area installation, Step S3 and Step S4 are executed alternately, and the position of the support rods and the installation sequence of the plates are dynamically adjusted according to the actual site conditions to achieve whole-body assembly installation without cutting or interruption.

[0025] The main technical effects of this invention are reflected in the following aspects:

[0026] This invention incorporates an independent support component consisting of hangers and support rods between the keel components and the panels, eliminating the reliance on the continuous secondary keel for panel support. When the secondary keel path encounters electromechanical pipelines such as fire sprinkler pipes, it can be directly bypassed without on-site cutting; while the panels receive effective support through adjustable support rods. This "structural separation, functional synergy" design maintains the mechanical continuity and overall rigidity of the secondary keel while providing flexibility in panel installation height, eliminating common quality defects such as sagging, cracking, and abnormal noise caused by keel breaks at the source.

[0027] The panels are bent along opposite sides to form support grooves, with open structures at the corners, allowing support rods to slide in laterally or pass through the grooves for support. This design eliminates traditional screw or adhesive fixing methods; installation simply requires aligning the support rod and pushing it in, and disassembly involves sliding it out in the opposite direction, without any damage or tool dependence. The upper end of the hanger can slide longitudinally and lock within the secondary keel mounting groove, while the lower end connects to the support rod through an elongated hole or groove, enabling horizontal position adjustment. This "longitudinal + lateral" dual-degree-of-freedom adjustment mechanism allows the support point to bypass pipeline obstacles at any location and accurately land in the effective support area. Even if the secondary keel shifts due to obstacle avoidance, the lateral compensation of the support rod ensures uniform stress on the panels, effectively resolving the contradiction of "obstacle avoidance leading to instability" in traditional systems and significantly improving the adaptability of prefabricated ceilings to non-standard sites.

[0028] When a panel uses a V-shaped support groove formed by a single large-angle bend, the contact point between the support rod and the groove wall will move up and down along the inclined plane as the distance between the two support rods is adjusted. By fine-tuning the horizontal distance between the support rods at both ends of the same panel, continuous and stepless fine-tuning of the panel's installation height can be achieved without changing the height of the hanger. Utilizing the principle of geometric inclined planes, horizontal displacement is converted into vertical displacement, which can accurately compensate for uneven floor slabs, installation errors, or temperature and humidity deformation, ensuring that large-area suspended ceilings achieve high-precision flatness requirements, far superior to traditional shim-type stepped leveling. Attached Figure Description

[0029] Figure 1 This is a structural diagram of the present invention;

[0030] Figure 2 for Figure 1 Structural diagram of the middle keel component;

[0031] Figure 3 for Figure 2 Enlarged view of part A in the image;

[0032] In the diagram: 1. Keel components; 11. Hanger system; 12. Main keel; 13. Secondary keel; 14. Mounting groove; 2. Support components; 21. Hanger; 22. Support rod; 3. Plate; 31. Bearing groove. Detailed Implementation

[0033] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master. In the embodiments, it should be understood that the terms "middle," "upper," "lower," "top," "right side," "left end," "above," "back," "center," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, 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, and therefore should not be construed as a limitation of the present invention. In addition, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art, etc., and therefore will not be described in detail in this embodiment.

[0034] The prefabricated ceiling and installation method provided by this invention are mainly applied to interior ceiling projects in modern public buildings (such as office buildings, hospitals, shopping malls, airports, etc.), but are not limited thereto; without departing from the core concept of this invention, they can also be applied to other building scenarios or decoration projects with similar spatial conditions, assembly requirements and electromechanical integration requirements.

[0035] Furthermore, as common knowledge in this field, the basic structures and construction techniques mentioned above, such as the connection method of the hanger system 11, the main keel 12 and the secondary keel 13, the modular layout of the light steel keel, and the standardized dimensions of the decorative panels (such as 600 mm × 600 mm, 300 mm × 1200 mm, etc.), are all conventional technical methods in the field of building decoration and renovation. Therefore, this article will not elaborate on the specific principles, structural details, or installation procedures of these common knowledge contents.

[0036] Example 1

[0037] This embodiment discloses a prefabricated ceiling system, aiming to solve the problem of structural integrity damage caused by the need to cut secondary joists 13 when avoiding building electromechanical pipelines in traditional ceiling systems. See also Figure 1 The ceiling system includes a keel component 1, a panel 3, and a support component 2, as detailed below:

[0038] See Figure 2 , Figure 3 The keel component 1 includes a secondary keel 13, which has a mounting groove 14 along its length.

[0039] See Figure 3The plate 3 has at least two opposing sides with bent bearing grooves 31. The bearing grooves 31 extend along the edge of the plate 3 and have an open structure at the corner of the plate 3 to allow the support rod 22 to slide in or pass through from the side. The bearing grooves 31 are formed by bending the edge of the plate 3 twice at 90°, forming a right-angled groove structure with a U-shaped or rectangular cross-section. This structure provides good load-bearing capacity and stability.

[0040] The support component 2 is disposed between the keel component 1 and the plate 3. The support component 2 includes a hanger 21 for connecting the keel component 1 and a support rod 22 for connecting the plate 3.

[0041] The upper end of the hanger 21 is slidably mounted in the mounting groove 14 and locked by a first fastener, allowing the hanger 21 to be adjusted in position along the length of the secondary keel 13. The support rod 22 is connected to the lower end of the hanger 21 by a second fastener. The second fastener, in conjunction with an elongated hole or a sliding groove structure, allows the support rod 22 to be adjusted and fixed in position relative to the hanger 21 in the horizontal direction. During the installation of the secondary keel 13, the building's electromechanical pipelines can be directly bypassed, avoiding on-site cutting of the secondary keel 13 and the formation of local breaks. At the same time, by adjusting the horizontal position of the support rod 22, the support rod 22 is shifted to an effective support area of ​​the secondary keel 13 that is not obstructed, thereby providing stable support for the corresponding plate 3.

[0042] The support rod 22 passes through the opening of the bearing groove 31 and is embedded in the groove, forming an effective support for the plate 3; it is suspended below the keel component 1 by the hanger 21, thereby realizing the assembly hoisting and support of the plate 3. In addition, the support rod 22 passes through the bearing groove 31 of two adjacent plates 3 along its own length, providing shared support for adjacent plates 3, reducing the number of support components 2 and improving assembly efficiency; it ensures that the plate 3 can be evenly stressed, avoiding plate surface deformation or joint cracking caused by local stress concentration. The cross-sectional profile of the contact part between the support rod 22 and the bearing groove 31 is adapted to the inner cavity profile of the bearing groove 31 at the end opening, ensuring the stability of the support rod 22 in the bearing groove 31 and preventing displacement.

[0043] Regarding the length adjustment of the support rod 22, in addition to the traditional method of cutting to a fixed length after on-site measurement, an adjustable telescopic structure design can also be adopted. Specifically, the support rod 22 adopts an adjustable length telescopic structure, including a first rod and a second rod. One end of the first rod is sleeved inside one end of the second rod, and the two form an axial sliding fit. In the overlapping section, there is an elongated hole or multiple spaced positioning holes extending along the length direction. The relative position between the two rods is locked by fastening screws passing through the elongated hole or positioning holes. During installation, the overlap length of the first rod and the second rod can be slidably adjusted according to the spacing between adjacent plates 3 or the site avoidance requirements, and the fastening screws can be tightened to fix it, thereby achieving stepless or graded adjustment of the length of the support rod 22 without relying on on-site cutting.

[0044] The dual adjustment of the hanger 21 and the support rod 22 allows the building's electromechanical pipelines to be bypassed directly during the secondary keel 13 installation stage, avoiding on-site cutting of the secondary keel 13 and the formation of local breaks. At the same time, by adjusting the horizontal position of the support rod 22, the support rod 22 is shifted to the effective support area of ​​the secondary keel 13 that is not obstructed, thereby providing stable support for the corresponding plate 3.

[0045] Example 2

[0046] This embodiment further optimizes the design of the bearing groove 31 compared to Embodiment 1, and adopts a V-shaped or triangular opening groove structure to enhance the leveling capability of the system.

[0047] Specifically, the bearing groove 31 is formed by bending the edge of the plate 3 at an angle greater than 90°, creating an open groove structure with a V-shaped or triangular cross-section. This V-shaped groove structure not only provides good elastic clamping but also allows for fine-tuning of the height by adjusting the contact point between the support rod 22 and the groove wall. By adjusting the horizontal distance between the two support rods 22 on the same plate 3, without changing the installation height of the hanger 21 relative to the keel component 1, the installation height of the plate 3 can be fine-tuned by changing the contact point between the V-shaped bearing groove 31 and the support rod 22, thereby compensating for on-site construction errors or meeting local leveling requirements.

[0048] Example 3

[0049] This embodiment provides a specific method for installing prefabricated ceiling panels, applicable to prefabricated ceiling panels with U-shaped support grooves 31. The installation method includes the following steps:

[0050] Step S1: Assemble the hanging part 21 and the secondary keel 13.

[0051] Before the secondary keel 13 is installed, the upper end of the hanger 21 is slidably inserted into the mounting groove 14 of the secondary keel 13. Regarding the connection between the hanger 21 and the secondary keel 13 via the first fastener, either of the following strategies can be adopted: directly tighten the first fastener to fix the position of the hanger 21, enabling pre-assembly for high-altitude operations; or temporarily leave the first fastener untightened, allowing the hanger 21 to slide along the length of the secondary keel 13, facilitating subsequent position adjustments as needed. This design allows the hanger 21 to slide freely on the secondary keel 13, facilitating flexible avoidance of building electromechanical pipelines.

[0052] Step S2, Layout of secondary keel 13

[0053] The secondary keel 13 is arranged at equal intervals in the ceiling space according to the design module. When the laying path of a certain secondary keel 13 is obstructed by building electromechanical pipelines, any of the following avoidance strategies shall be adopted: Option 1: Only the obstructed secondary keel 13 is shifted as a whole to make way, and the remaining secondary keels 13 are still arranged at the original equal intervals; Option 2: The position of the obstructed secondary keel 13 after shifting is used as the new benchmark, and the subsequent secondary keels 13 continue to be laid out in sequence according to the original module spacing.

[0054] For Option 1, which involves partial offset and detour, the principle of "minimal intervention" is emphasized. Its core lies in adjusting only the position of the secondary keel 13 directly affected by the obstacle (e.g., lateral shift of 100-200mm to bypass the sprinkler branch pipe), while adjacent secondary keels 13 are still arranged strictly according to the original design module (e.g., 600mm). This method preserves the regularity and symmetry of the original grid system to the greatest extent, and is particularly suitable for areas with isolated and sparsely distributed obstacles (e.g., the location of a single sprinkler head penetrating a beam). Since the vast majority of keels remain unchanged, the layout of the decorative panels is almost unaffected, and the factory can prefabricate panels 3 in batches according to the standard module, resulting in high construction efficiency and clear positioning during later maintenance. However, its limitation is that if the offset is large or the obstacles are dense, it may cause local support points to deviate from the center of the panel joint, requiring compensation through the lateral adjustment capability of the support rod 22. In extreme cases, auxiliary secondary keels 13 can be added locally as supplementary support without disrupting the continuity of the main keel 12 system, thus balancing structural safety and functional realization under the premise of "minimal intervention".

[0055] Option two, which uses the offset keel as a new benchmark for re-layout, embodies the concept of "system adaptability." When obstacles are located on critical axes or are continuously distributed (such as multiple parallel ducts crossing the same area), forcibly maintaining the original module may require significant offsets for subsequent keels, thus disrupting overall coordination. In this case, the position of the first obstructed secondary keel after offset is used as the new starting benchmark. Subsequent keels are then laid out sequentially from this starting point, following the original module (e.g., 600mm). Although the overall grid is shifted relative to the original axis, the internal modular relationships remain intact, and the decorative panels can still be installed according to uniform specifications, requiring only minor edge finishing at the boundaries. This strategy sacrifices absolute alignment with the building axis but gains a high degree of consistency within the system and ease of construction, making it particularly suitable for open-plan office areas without a clear visual center.

[0056] Step S3: Assembly of support component 2

[0057] The support rod 22 is connected to the lower end of the hanger 21 via a second fastener. The horizontal position of the support rod 22 is adjusted using the elongated hole or groove structure on the hanger 21. When the path of the support rod 22 is obstructed by building electromechanical pipelines, the support rod 22 is laterally shifted to an unobstructed area. To ensure effective support for the target panel 3, other support rods 22 corresponding to the same panel 3 or adjacent panels 3 should be adjusted in coordination according to the position of the shifted support rods 22 to avoid uneven stress, twisting, or misalignment of the panel 3 due to local single-point shifting. This dual adjustment mechanism ensures that the support rod 22 can flexibly avoid obstacles while maintaining stable support for the panel 3.

[0058] Step S4, Installation of plate 3

[0059] Align the opening of the bearing groove 31 of plate 3 with the positioned support rod 22, so that the support rod 22 passes through and is embedded in the bearing groove 31, forming a stable support for plate 3. This design not only simplifies the installation process, but also ensures the stability of plate 3 after installation.

[0060] Step S5: Alternating assembly and leveling

[0061] During large-scale installation, steps S3 and S4 are executed alternately, and the position of the support rod 22 and the installation sequence of the plate 3 are dynamically adjusted according to the actual site conditions to achieve a seamless, prefabricated installation. This dynamic adjustment mechanism greatly improves the system's adaptability and installation efficiency.

[0062] Example 4

[0063] This embodiment provides a specific method for installing prefabricated ceiling panels, applicable to prefabricated ceiling panels with V-shaped support grooves 31. The installation method includes the following steps:

[0064] Step S1: Assemble the hanging part 21 and the secondary keel 13.

[0065] Before the secondary keel 13 is laid, the upper end of the hanger 21 is slid into the mounting groove 14 of the secondary keel 13, and the first fastener is not locked temporarily, so that the hanger 21 can slide along the length of the secondary keel 13, so that the horizontal height of the panel 3 can be finely adjusted by adjusting the spacing between adjacent hangers 21, thereby achieving precise leveling of the ceiling system.

[0066] Traditional leveling methods require working at height, repeatedly tightening the hanger nuts, or inserting wooden wedges or metal shims under the keel. This is not only time-consuming but can also lead to later settlement due to loose shims. This solution, however, only requires loosening the first fastener, sliding the hanger 21 to the new spacing position, and then re-locking it. The hanger 21 itself has the ability to slide along the secondary keel 13 to avoid pipelines. Furthermore, it utilizes the relative position change after sliding to achieve leveling, allowing "obstacle avoidance" and "leveling" to share the same degree of freedom, achieving two effects in one action and avoiding the need for additional structures for leveling. Simultaneously, this stepless leveling mechanism based on the geometric slope principle can achieve millimeter-level height adjustments, far superior to traditional shim-type "stepped" leveling. It effectively compensates for uneven floor slabs, keel installation errors, or micro-deformations caused by temperature and humidity, ensuring the ultimate flatness of large-area suspended ceilings.

[0067] Step S2, Layout of secondary keel 13

[0068] The secondary keel 13 is arranged at equal intervals according to the design module in the ceiling space. When the laying path of a secondary keel 13 is obstructed by building electromechanical pipelines, one of the following avoidance strategies is adopted: only the obstructed secondary keel 13 is partially offset and rerouted, while the remaining secondary keels 13 maintain their original equidistant arrangement; or the offset position of the obstructed secondary keel 13 is used as the new reference, and subsequent secondary keels 13 continue to be laid sequentially according to the original modular spacing. This flexible laying strategy avoids the need for on-site cutting of the secondary keel 13, maintaining the continuity and overall rigidity of the secondary keel 13.

[0069] Step S3: Assembly of support component 2

[0070] The support rod 22 is connected to the lower end of the hanger 21 via a second fastener. The horizontal position of the support rod 22 is adjusted using the elongated hole or groove structure on the hanger 21. When the path of the support rod 22 is obstructed by building electromechanical pipelines, the support rod 22 is laterally shifted to an unobstructed area. To ensure effective support for the target panel 3, other support rods 22 corresponding to the same panel 3 or adjacent panels 3 should be adjusted in coordination according to the position of the shifted support rods 22 to avoid uneven stress, twisting, or misalignment of the panel 3 due to local single-point shifting. This dual adjustment mechanism ensures that the support rod 22 can flexibly avoid obstacles while maintaining stable support for the panel 3.

[0071] Step S4, Installation of plate 3

[0072] Align the opening of the bearing groove 31 of the plate 3 with the positioned support rod 22, so that the support rod 22 passes through and is embedded in the bearing groove 31, forming a stable support for the plate 3; this not only simplifies the installation process, but also ensures the stability of the plate 3 after installation.

[0073] Step S5: Alternating assembly and leveling

[0074] During large-scale installation, steps S3 and S4 are executed alternately, and the position of the support rod 22 and the installation sequence of the plate 3 are dynamically adjusted according to the actual site conditions to achieve a seamless, prefabricated installation. This dynamic adjustment mechanism greatly improves the system's adaptability and installation efficiency.

[0075] Of course, the above are just typical examples of the present invention. In addition, the present invention may have many other specific embodiments. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by the present invention.

Claims

1. A prefabricated ceiling system, comprising a keel component and panels, characterized in that, A support component is provided between the keel component and the plate. The support component includes a hanger connecting the keel component and a support rod for connecting the plate. The plate has a bearing groove formed by bending at least two opposite sides. The bearing groove extends along the edge of the plate and has an open structure design at the end corners of the plate to facilitate the support rod to slide in or pass through from the side. The support rod passes through the opening of the bearing groove and is embedded in the groove to effectively support the plate. It is suspended below the keel component by the hanger, thereby realizing the assembled hoisting and support of the plate. The cross-sectional profile of the contact portion between the support rod and the bearing groove is adapted to the inner cavity profile of the bearing groove at the end opening; The keel component includes a secondary keel, which has a mounting groove along its length. The upper end of the hanger is slidably disposed in the mounting groove and locked by a first fastener to achieve position adjustment of the hanger along the length of the secondary keel. The support rod is connected to the lower end of the hanger by a second fastener, which, in conjunction with an elongated hole or a sliding groove structure, allows the support rod to be adjusted and fixed in position relative to the hanger in the horizontal direction. During the secondary keel installation phase, the building's electromechanical pipelines can be directly bypassed, avoiding on-site cutting of the secondary keel and the formation of local breaks. At the same time, by adjusting the horizontal position of the support rod, the support rod is offset to the effective support area of ​​the secondary keel that is not obstructed, thereby providing stable support for the corresponding panels.

2. The prefabricated ceiling as described in claim 1, characterized in that, The support rod adopts a telescopic structure, and the length of the support rod can be adjusted during installation; The support rod passes through the bearing grooves of two adjacent plates along its own length, providing common support for the adjacent plates.

3. The prefabricated ceiling as described in claim 1, characterized in that, The cross-section of the bearing groove is a U-shaped or rectangular right-angled groove structure.

4. The prefabricated ceiling as described in claim 1, characterized in that, The cross-section of the bearing groove is a V-shaped or triangular open groove structure.

5. The prefabricated ceiling as described in claim 4, characterized in that, By adjusting the horizontal distance between the two support rods on the same plate, without changing the installation height of the hanger relative to the keel component, the installation height of the plate can be finely adjusted by utilizing the change in the contact point position between the V-shaped bearing groove and the support rod, thereby compensating for on-site construction errors or meeting local leveling requirements.

6. A method for installing prefabricated ceiling panels, characterized in that, The installation method of the prefabricated ceiling system described in claim 3 includes the following steps: Step S1: Assemble the hanger and secondary keel. Before the secondary keel is laid, the upper end of the hanger is slidably inserted into the mounting slot of the secondary keel; regarding the connection between the hanger and the secondary keel via the first fastener, any of the following strategies can be adopted: Tighten the first fastener directly to fix the position of the hanger; Alternatively, the first fastener may not be tightened temporarily, allowing the hanger to slide along the length of the secondary keel, so that its position can be adjusted later as needed. Step S2, Layout of the secondary keel The secondary keel is arranged at equal intervals in the ceiling space according to the design module; when the laying path of a certain secondary keel is obstructed by building mechanical and electrical pipelines, any of the following avoidance strategies shall be adopted: Only the obstructed secondary keel is shifted to make way, while the other secondary keels remain equidistant from their original arrangement. Alternatively, the position of the obstructed secondary keel after its shift can be used as a new reference, and subsequent secondary keels can continue to be laid out sequentially according to the original modular spacing, starting from this position. Step S3: Assembly of support components Connect the support rod to the lower end of the hanger using a second fastener, and adjust the position of the support rod in the horizontal direction using the elongated hole or sliding groove structure on the hanger. When the path of the support rod is blocked by building electromechanical pipelines, the support rod is laterally offset to an unobstructed area. To ensure effective support for the target panel, other support rods corresponding to the same or adjacent panels should be adjusted in coordination according to the position of the offset support rods to avoid uneven stress, twisting or misalignment of the panel due to local single-point offset. Step S4, Installation of the panel Align the opening of the plate bearing groove with the positioned support rod, so that the support rod passes through and is embedded in the bearing groove to form a stable support for the plate. Step S5: Alternating assembly and leveling During large-scale installation, steps S3 and S4 are executed alternately, and the position of the support rods and the installation sequence of the plates are dynamically adjusted according to the actual site conditions to achieve a seamless, prefabricated installation.

7. A method for installing prefabricated ceiling panels, characterized in that, The installation method of the prefabricated ceiling system as described in claim 4 or 5 includes the following steps: Step S1: Assemble the hanger and secondary keel. Before the secondary keel is laid, the upper end of the hanger is slid into the hanging groove of the secondary keel, and the first fastener is not locked yet, so that the hanger can slide along the length of the secondary keel. This allows the horizontal height of the panel to be finely adjusted by adjusting the spacing between adjacent hangers, thereby achieving precise leveling of the ceiling system. Step S2, Layout of the secondary keel The secondary keel is arranged at equal intervals in the ceiling space according to the design module; when the laying path of a certain secondary keel is obstructed by building mechanical and electrical pipelines, any of the following avoidance strategies shall be adopted: Only the obstructed secondary keel is shifted to make way, while the other secondary keels remain equidistant from their original arrangement. Alternatively, the position of the obstructed secondary keel after its shift can be used as a new reference, and subsequent secondary keels can continue to be laid out sequentially according to the original modular spacing, starting from this position. Step S3: Assembly of support components Connect the support rod to the lower end of the hanger using a second fastener, and adjust the position of the support rod in the horizontal direction using the elongated hole or sliding groove structure on the hanger. When the path of the support rod is blocked by building electromechanical pipelines, the support rod is laterally offset to an unobstructed area. To ensure effective support for the target panel, other support rods corresponding to the same or adjacent panels should be adjusted in coordination according to the position of the offset support rods to avoid uneven stress, twisting or misalignment of the panel due to local single-point offset. Step S4, Installation of the panel Align the opening of the plate bearing groove with the positioned support rod, so that the support rod passes through and is embedded in the bearing groove to form a stable support for the plate. Step S5: Alternating assembly and leveling During large-scale installation, steps S3 and S4 are executed alternately, and the position of the support rods and the installation sequence of the plates are dynamically adjusted according to the actual site conditions to achieve a seamless, prefabricated installation.

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