Rapid and precise prefabricated construction system and methods for large, irregularly shaped suspended ceilings in high-ceilinged spaces

Abstract

This invention discloses a rapid and precise prefabricated construction system and method for large, irregularly shaped suspended ceilings in high-ceilinged spaces, relating to the field of ceiling assembly technology. The system includes a ceiling panel connected to fixing ribs via expansion bolts. A main keel and a secondary keel are located at the bottom of the fixing ribs, with locking blocks on the secondary keels. Fixing components are installed between the fixing ribs and the main keel, and limiting components are installed between the main keel and the secondary keel. The fixing components quickly lock onto the fixing ribs, ensuring the installation accuracy and stability of the main keel. The limiting components precisely position the main keel, preventing the secondary keel from shifting or misaligning during the construction of irregularly shaped suspended ceilings. Furthermore, all components are detachable, relying on the elasticity of telescopic springs for rapid assembly and disassembly, eliminating the need for complex welding and bolt tightening processes. This effectively solves the technical pain points of low construction efficiency, poor positioning accuracy, and inconvenient disassembly in large, irregularly shaped suspended ceilings, ensuring a fast, precise, and safe construction process.

Description

Technical Field

[0001] This invention relates to the field of ceiling assembly technology, specifically to a rapid and precise prefabricated construction system and method for large, irregularly shaped ceilings in high-ceilinged spaces. Background Technology

[0002] With the rapid development of the construction industry, the construction of various tall and large-space buildings (such as convention centers, airport terminals, and large theaters) is increasing. These buildings place higher demands on the decorative effects and construction quality of ceilings. Irregularly shaped large ceilings, due to their unique designs, can meet the aesthetic needs of building interiors and are widely used in the decoration of tall spaces. However, during the construction of irregularly shaped large ceilings in tall spaces, traditional construction methods have many drawbacks due to factors such as the high ceiling height, irregular ceiling shape, and complex structural stress, making it difficult to meet the dual requirements of rapid construction and precise positioning.

[0003] Chinese patent publication number CN119434523A discloses an indoor large-area aluminum panel ceiling prefabricated installation structure, including a main keel. The bottom end of the main keel has a first through hole, and a hanging clip is slidably installed in the first through hole. There are multiple hanging clips, and each hanging clip is snapped with a secondary keel. The secondary keel is used to support the aluminum panel. With the cooperation of the cylindrical hexagonal tube and the fixed ring hexagonal groove, the construction worker can use an electric drill to fix the expansion bolts to the ceiling, which is simple to operate.

[0004] Because ceiling construction often employs traditional on-site welding and bolting assembly methods, the connections between the main keel and the load-bearing structure, and between the secondary keel and the main keel, are mostly fixed connections. This assembly process is cumbersome, requiring significant manpower and time, resulting in low construction efficiency. Furthermore, disassembly is inconvenient, hindering later maintenance and modifications. Simultaneously, the positioning accuracy of the main and secondary keels is difficult to guarantee in traditional construction methods, especially in irregularly shaped areas, easily leading to keel misalignment and other problems. This results in insufficient ceiling flatness, affecting both decorative effect and structural stability.

[0005] Furthermore, in existing construction systems, the connecting components between the main keel and the load-bearing structure, and between the secondary keel and the main keel, are mostly independently installed. Each component needs to be operated separately during the process, further increasing the construction steps and operational difficulty, making rapid and precise assembly difficult. To address the problems of low construction efficiency, poor positioning accuracy, inconvenient disassembly, and cumbersome operation in the existing technologies, there is an urgent need for a construction system and method that enables rapid and precise assembly of large, irregularly shaped suspended ceilings in high spaces, while facilitating disassembly and maintenance. This would solve industry pain points and improve construction quality and efficiency. Summary of the Invention

[0006] This invention provides a rapid and precise prefabricated construction system and method for large, irregularly shaped suspended ceilings in high spaces, which can effectively solve the problems of low construction efficiency and inconvenient disassembly and maintenance caused by the use of bolts and fixing plates for ceiling installation mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high spaces, including a ceiling, wherein the ceiling is connected to a fixing rib by expansion screws, a main keel and a secondary keel are provided at the bottom of the fixing rib, a locking block is provided on the secondary keel, a fixing component is provided between the fixing rib and the main keel, and a limiting component is provided between the main keel and the secondary keel; The fixing component includes symmetrically arranged mounting notches on the fixing ribs, through holes symmetrically arranged through the mounting notches, fixing seats symmetrically arranged in a staggered manner on the main keel, and a plug rod slidably arranged on the fixing seat. When the plug rod is locked, it is inserted into the through hole. The limiting component includes symmetrical slots on the card block, and a card strip is provided in the slot. The card strip and the slot are adapted to each other. The limiting component is used to prevent the secondary keel from sliding horizontally in the mounting groove of the main keel.

[0008] According to the above technical solution, each of the installation notch sidewalls is provided with a fixing block, and each fixing block is slidably provided with a limit rod, and a sliding piece is fixedly provided on the outer surface of the limit rod.

[0009] According to the above technical solution, the middle part of the sliding piece is slidably connected to the installation notch of the fixing rib, and the outer surface of the limiting rod is fitted with a vertical telescopic spring, which is located between the sliding piece and the fixing block.

[0010] According to the above technical solution, each of the plug rods has a limiting hole through it, the diameter of the limiting hole is adapted to the limiting rod, a limiting ring is fixedly provided at the end of the plug rod away from the limiting hole, and a horizontal telescopic spring is sleeved on the outer surface of the plug rod, the horizontal telescopic spring being located between the limiting ring and the fixed seat.

[0011] According to the above technical solution, a number of mounting holes are provided through the main keel. The mounting holes are arranged in groups of two and symmetrically with the center of the fixing rib as a reference point. A guide block is fixedly installed in each group of mounting holes.

[0012] According to the above technical solution, a synchronizing rod is slidably arranged in the middle of the guide block, and the bottom of the synchronizing rod is fixedly connected to the locking strip.

[0013] According to the above technical solution, an upper limit plate and a lower limit plate are fixedly provided on the side of the synchronizing rod near the fixing rib. The bottom of the upper limit plate is in contact with the top of the sliding plate, and the top of the lower limit plate is in contact with the bottom of the sliding plate.

[0014] According to the above technical solution, the rapid and precise prefabricated construction method for large, irregularly shaped suspended ceilings in high-ceilinged spaces includes the following steps: S1: First, install the fixing bars on the ceiling at equal intervals according to the ceiling building standard requirements using expansion bolts. Then, align the fixing components of the main keel with the through holes at the installation notch. S2: Next, press the plug rod on the main keel fixing seat to insert it into the through hole. At this time, the limiting rod is inserted into the limiting hole of the plug rod, and the fixing rib is fixed to the main keel. S3: Then slide the secondary keel through the mounting slot of the main keel to the position of the fixed component, and lift the sliding piece upward. Observe the locking block of the secondary keel through the mounting hole. Release the sliding piece to make the locking strip lock into the locking block slot. When disassembling the secondary keel, lift the sliding piece again to make the locking strip disengage from the slot. Release the locking strip to limit the secondary keel through the slot. S4: When disassembling the main keel, press down on the sliding piece to make the limiting rod disengage from the limiting hole. At this time, the horizontal telescopic spring will reset the plug rod and release the limiting between the main keel and the fixing rib.

[0015] According to the above technical solution, the locking force of the fixing component is calculated by the following formula: in, For locking force, The elastic constant of the horizontal extension spring (3014) is determined by the material properties and spring design. This refers to the amount of displacement of the spring during assembly, which is compressed or stretched. The magnitude of the locking force is controlled by adjusting this displacement.

[0016] According to the above technical solution, the function of the limiting component is to prevent the secondary keel (4) from sliding horizontally in the mounting groove of the main keel (3); The engagement of the clip (3023) and the slot (402) achieves precise positioning of the secondary keel through friction, and the fitting force... This is the force required for the card strip and card slot to fit together. This force is determined by both the coefficient of friction and the normal force, where: in, For the fitting force between the card strip (3023) and the card slot (402), The coefficient of friction between the card strip and the card slot. This refers to the normal force between the card strip and the card slot.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: The main keel of the present invention is quickly locked by fixing components and fixing ribs, ensuring the installation accuracy and stability of the main keel; the secondary keel is precisely positioned with the main keel by limiting components, avoiding the problem of secondary keel offset and misalignment during the construction of irregular ceilings. At the same time, all components adopt a detachable design, relying on the elasticity of the telescopic spring to achieve quick assembly and disassembly, without the need for complicated welding and bolt tightening procedures, effectively solving the technical pain points of low construction efficiency, poor positioning accuracy and inconvenient disassembly of irregular ceilings in high spaces, ensuring that the construction process is fast, accurate and safe. This invention simplifies the connection between the main keel and the fixing ribs, and between the secondary keel and the main keel, by setting up linked fixing and limiting components, reducing construction steps and manpower input, thereby improving the construction efficiency of large, irregularly shaped suspended ceilings in high spaces. Through the precise insertion and limiting of the fixing components and the synchronous positioning of the limiting components, keel offset and misalignment are avoided, ensuring the installation positioning accuracy and overall flatness of the ceiling. The detachable connection structure driven by telescopic springs replaces traditional welding and bolt fastening methods, facilitating later maintenance, modification, and disassembly of the ceiling. The component design, adapted to irregular structures, balances construction convenience and structural stability, meeting both the decorative and structural safety requirements of large, irregularly shaped suspended ceilings in high spaces. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0019] In the attached diagram: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is the present invention. Figure 1 Enlarged structural diagram at point A; Figure 3 This is a three-dimensional structural diagram from another perspective of the present invention; Figure 4 This is a schematic diagram of the overall cross-section side view of the present invention; Figure 5 This is a schematic diagram of the overall cross-section and enlarged portion of the structure of the present invention; Figure 6 This is a schematic diagram of the structure of the fixing rib and main keel, and the main keel and secondary keel after disassembly of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged structural diagram at point B; Figure 8 This is a schematic diagram of the construction method steps of the present invention; The diagram is labeled as follows: 1. Ceiling; 2. Fixing rib; 201. Installation notch; 202. Through hole; 203. Fixing block; 204. Limiting rod; 205. Sliding piece; 206. Vertical telescopic spring. 3. Main keel; 301. Fixing base; 3011. Connecting rod; 3012. Limiting hole; 3013. Limiting ring; 3014. Horizontal telescopic spring; 302. Mounting hole; 3021. Guide block; 3022. Synchronizing rod; 3023. Locking strip; 3024. Upper limit plate; 3025. Lower limit plate; 4. Secondary keel; 401. Card block; 402. Card slot. Detailed Implementation

[0020] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0021] Example: Figures 1 to 7 As shown, the present invention provides a rapid and precise prefabricated construction system and method for large, irregularly shaped suspended ceilings in high spaces. The system includes a ceiling 1, which is connected to a fixing rib 2 by expansion bolts. The fixing rib 2 has a main keel 3 and a secondary keel 4 at its bottom, and a clip 401 on the secondary keel 4. The fixing rib 2 is fixed to the ceiling 1 by expansion bolts, providing a load-bearing foundation for the entire suspended ceiling system. Furthermore, a fixing component is provided between the fixing rib 2 and the main keel 3. The fixing component includes a mounting notch 201 symmetrically arranged on the fixing rib 2, a through hole 202 symmetrically arranged through the mounting notch 201, and a fixing seat 301 symmetrically arranged in a staggered manner on the main keel 3. A plug rod 3011 is slidably arranged on the fixing seat 301. When the plug rod 3011 is locked, it is inserted into the through hole 202. Among them, each side wall of the installation notch 201 is provided with a fixing block 203, and each fixing block 203 is slidably provided with a limit rod 204, and a sliding piece 205 is fixedly provided on the outer surface of the limit rod 204. The middle part of the sliding piece 205 is slidably connected to the installation notch 201 of the fixing rib 2. The outer surface of the limiting rod 204 is fitted with a vertical telescopic spring 206, which is located between the sliding piece 205 and the fixing block 203. Each plug rod 3011 has a limiting hole 3012 through it. The diameter of the limiting hole 3012 is compatible with the limiting rod 204. A limiting ring 3013 is fixedly installed at the end of the plug rod 3011 away from the limiting hole 3012. A horizontal telescopic spring 3014 is sleeved on the outer surface of the plug rod 3011. The horizontal telescopic spring 3014 is located between the limiting ring 3013 and the fixed seat 301. In the above embodiment, the fixing component provides a detachable locking structure for the connection between the fixing rib 2 and the main keel 3. Its components work together to achieve quick assembly and unlocking of the two. The fixing seat 301 is fixedly connected to the main keel 3 to ensure the installation stability of the plug rod 3011. The sliding fit design between the sliding piece 205 and the installation notch 201 can ensure the smoothness of the limit rod 204 when it moves up and down and avoid jamming. The horizontal telescopic spring 3014 and the vertical telescopic spring 206 cooperate with each other to provide elastic restoring force for the plug rod 3011 and the limit rod 204 respectively. This makes the locking and unlocking action of the fixing component free of additional tools, convenient to operate, and suitable for the efficient construction needs of high-ceilinged spaces. At the same time, it can ensure the firmness of the connection between the fixing rib 2 and the main keel 3 and prevent the ceiling structure from loosening under stress.

[0022] Furthermore, a limiting component is provided between the main keel 3 and the secondary keel 4. The limiting component includes a slot 402 symmetrically opened on the slot 401, and a slot strip 3023 is provided in the slot 402. The slot strip 3023 and the slot 402 are mutually adapted. The limiting component is used to prevent the secondary keel 4 from sliding horizontally in the mounting groove of the main keel 3. Among them, a number of mounting holes 302 are provided through the main keel 3. The mounting holes 302 are arranged in groups of two and symmetrically with the center of the fixed rib 2 as a reference point. A guide block 3021 is fixedly installed in each group of mounting holes 302. A synchronous rod 3022 is slidably installed in the middle of the guide block 3021. The bottom of the synchronous rod 3022 is fixedly connected to the clip 3023. The synchronizing rod 3022 is fixedly provided with an upper limit plate 3024 and a lower limit plate 3025 on the side near the fixing rib 2. The bottom of the upper limit plate 3024 is in contact with the top of the sliding plate 205, and the top of the lower limit plate 3025 is in contact with the bottom of the sliding plate 205. In the above embodiments, the limiting component and the fixing component form a linkage structure, simplifying the construction operation steps. The guide block 3021 provides sliding guidance for the synchronous rod 3022, ensuring that the synchronous rod 3022 does not deviate when moving up and down, thereby ensuring that the locking strip 3023 can be accurately aligned with the slot 402. The setting of the upper limiting piece 3024 and the lower limiting piece 3025 realizes the synchronous linkage between the sliding piece 205 and the synchronous rod 3022, so that the up and down movement of the sliding piece 205 can directly drive the synchronous rod 3022 and the locking strip 3023 to rise and fall, without the need to operate the limiting component separately, improving construction efficiency. For the structural characteristics of irregular ceilings, the limiting component can be synchronously adapted to the irregular curvature of the main keel 3 and the secondary keel 4, ensuring that the horizontal sliding of the secondary keel 4 can still be effectively restricted in irregular parts, ensuring the flatness and stability of the overall ceiling installation.

[0023] like Figure 8As shown: The rapid and precise prefabricated construction method for large, irregularly shaped suspended ceilings in high-ceilinged spaces, applied to the rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces in any of the above embodiments, includes the following steps: S1: First, install the fixing rib 2 on the ceiling 1 at equal intervals according to the ceiling building standard requirements using expansion screws. Then, align the fixing components of the main keel 3 with the through hole 202 at the installation notch 201. S2: Next, press the plug rod 3011 on the main keel 3 fixing seat 301 so that it is inserted into the through hole 202. At this time, the limiting rod 204 is inserted into the limiting hole 3012 of the plug rod 3011, and the fixing rib 2 is fixed to the main keel 3. S3: Then slide the secondary keel 4 through the mounting slot of the main keel 3 to the position of the fixed component, and lift the sliding piece 205 upward. Observe the locking block 401 of the secondary keel 4 through the mounting hole 302. Release the sliding piece 205 to make the locking strip 3023 lock into the locking slot 402 of the locking block 401. When disassembling the secondary keel 4, lift the sliding piece 205 again to make the locking strip 3023 disengage from the slot 402. Release the locking strip 3023 from limiting the secondary keel 4 through the slot 402. S4: When disassembling the main keel 3, press down on the sliding piece 205 to cause the limiting rod 204 to disengage from the limiting hole 3012. At this time, the horizontal telescopic spring 3014 resets the plug rod 3011 and releases the limitation between the main keel 3 and the fixing rib 2.

[0024] Furthermore, the locking force of the fixing component is calculated using the following formula: in, For locking force, The elastic constant of the 3014 horizontal extension spring is determined by the material properties and spring design. This refers to the amount of displacement of the spring during assembly, which is compressed or stretched. By adjusting this displacement, the magnitude of the locking force can be precisely controlled, thereby ensuring a precise connection between the main keel and the fixing rib.

[0025] Furthermore, the function of the limiting component is to prevent the secondary keel 4 from sliding horizontally within the mounting groove of the main keel 3; The engagement of the clip 3023 and the slot 402 achieves precise positioning of the secondary keel through friction, and the fitting force... This is the force required for the card strip and card slot to fit together. This force is determined by both the coefficient of friction and the normal force, where: in, For the fitting force between the card strip 3023 and the card slot 402, The coefficient of friction between the card strip and the card slot. This refers to the normal force between the card strip and the card slot.

[0026] Based on all the above embodiments and construction methods, the working principle and usage process of this invention are as follows: The core working principle of this construction system is to achieve rapid assembly and precise positioning of the fixed rib 2, main keel 3, and secondary keel 4 through the coordinated operation of the fixed components and limiting components, while ensuring connection strength. It is suitable for the construction needs of high-ceilinged irregular ceilings. Specifically, it is divided into two parts: the working principle of the fixed components and the working principle of the limiting components, which correspond one by one with the construction steps.

[0027] The fixing component is used to achieve detachable fixing of the fixing rib 2 and the main keel 3. Its core relies on the elastic reset effect of the telescopic spring to achieve locking and unlocking. In the initial state, the horizontal telescopic spring 3014 is in a naturally extended state, so that the distance between the plug rods 3011 is greater than the diameter of the bottom mounting notch 201 of the fixing rib 2; the vertical telescopic spring 206 is in a naturally extended state, which in turn drives the limit rod 204 to remain in the extended state.

[0028] When installing the main keel 3 to the fixing rib 2, first press the sliding piece 205 to compress the vertical telescopic spring 206, so that the top of the limiting rod 204 is lower than the limiting hole 3012. Then, align the plug-in rod 3011 of the main keel 3 with the through hole 202. Finally, press the plug-in rod 3011 to further compress the horizontal telescopic spring 3014. The plug-in rod 3011 moves towards the through hole 202 and is inserted into the through hole 202. When the limiting hole 3012 on the plug-in rod 3011 is aligned with the limiting rod 204, release the sliding piece 205. The elastic force of the vertical telescopic spring 206 pushes the limiting rod 204 into the limiting hole 3012, limiting the plug-in rod 3011 and preventing it from resetting under the action of the horizontal telescopic spring 3014. At this time, the fixing rib 2 and the main keel 3 are firmly locked, completing the assembly of the two.

[0029] When it is necessary to disassemble the main keel 3, press down on the sliding piece 205. The sliding piece 205 compresses the vertical telescopic spring 206 and moves downward, causing the limiting rod 204 to disengage from the limiting hole 3012, releasing the limitation on the plug-in rod 3011. At this time, the horizontal telescopic spring 3014 returns to its natural state, causing the plug-in rod 3011 to be pulled out from the through hole 202, releasing the connection between the fixing rib 2 and the main keel 3, and realizing quick disassembly.

[0030] The limiting component is used to achieve precise positioning of the main keel 3 and the secondary keel 4, preventing the secondary keel 4 from sliding horizontally within the mounting groove of the main keel 3. Its operation is linked with the sliding piece 205 of the fixing component to achieve synchronous operation. In the initial state, under the action of the vertical telescopic spring 206, the limiting rod 204 is located in the limiting hole 3012. The synchronous rod 3022 is in contact with the sliding piece 205 through the upper limiting piece 3024 and the lower limiting piece 3025. The sliding piece 205 is moved to the side of the ceiling 1 until the sliding piece 205 abuts against the plug rod 3011. At this time, the bottom of the retaining strip 3023 and the top of the retaining groove 402 are not on the same horizontal line, which does not affect the installation and sliding of the secondary keel 4. After the secondary keel 4 slides to the designated position, the position of the locking block 401 of the secondary keel 4 can be observed through the mounting hole 302. Adjust the secondary keel 4 so that the locking groove 402 is aligned with the locking strip 3023. After releasing the sliding piece 205, the vertical telescopic spring 206 pushes the sliding piece 205 to reset. The synchronous rod 3022 drives the locking strip 3023 to descend and lock into the locking groove 402. By utilizing the matching relationship between the locking strip 3023 and the locking groove 402, the horizontal movement of the secondary keel 4 is restricted, thus completing the limiting and fixing of the main keel 3 and the secondary keel 4.

[0031] When it is necessary to disassemble the secondary keel 4, lift the sliding plate 205 again, and the synchronous rod 3022 will drive the locking strip 3023 to rise and disengage from the locking groove 402, thereby releasing the restriction on the secondary keel 4. The secondary keel 4 can then be pulled out from the mounting groove of the main keel 3, achieving quick disassembly.

[0032] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention 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 the present invention should be included within the protection scope of the present invention.

Claims

1. A rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces, comprising a ceiling (1), wherein the ceiling (1) is connected to a fixing rib (2) by expansion bolts, and a main keel (3) and a secondary keel (4) are provided at the bottom of the fixing rib (2), and a locking block (401) is provided on the secondary keel (4), characterized in that: A fixing component is provided between the fixing rib (2) and the main keel (3), and a limiting component is provided between the main keel (3) and the secondary keel (4); The fixing component includes a mounting notch (201) symmetrically arranged on the fixing rib (2), a through hole (202) symmetrically arranged through the mounting notch (201), a fixing seat (301) symmetrically arranged on the main keel (3), and a plug rod (3011) slidably arranged on the fixing seat (301). When the plug rod (3011) is locked, it is inserted into the through hole (202). The limiting component includes a slot (402) symmetrically opened on the slot (401), and a slot strip (3023) is provided in the slot (402). The slot strip (3023) and the slot (402) are adapted to each other. The limiting component is used to prevent the secondary keel (4) from sliding horizontally in the mounting groove of the main keel (3).

2. The rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 1, characterized in that, Each of the installation notches (201) has a fixing block (203) on its sidewall. Each fixing block (203) has a limit rod (204) that slides through it. A sliding piece (205) is fixedly provided on the outer surface of the limit rod (204).

3. The rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 2, characterized in that, The middle part of the sliding piece (205) is slidably connected to the installation notch (201) of the fixing rib (2), and the outer surface of the limiting rod (204) is fitted with a vertical telescopic spring (206), which is located between the sliding piece (205) and the fixing block (203).

4. The rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 1, characterized in that, Each of the plug rods (3011) has a limiting hole (3012) through it. The diameter of the limiting hole (3012) is adapted to the limiting rod (204). A limiting ring (3013) is fixedly provided at the end of the plug rod (3011) away from the limiting hole (3012). A horizontal telescopic spring (3014) is sleeved on the outer surface of the plug rod (3011). The horizontal telescopic spring (3014) is located between the limiting ring (3013) and the fixed seat (301).

5. The rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 1, characterized in that, The main keel (3) is provided with several mounting holes (302). The mounting holes (302) are arranged in pairs and symmetrically with the center of the fixing rib (2) as a reference point. Each set of mounting holes (302) is provided with a guide block (3021).

6. The rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 5, characterized in that, A synchronizing rod (3022) is slidably disposed in the middle of the guide block (3021), and the bottom of the synchronizing rod (3022) is fixedly connected to the locking strip (3023).

7. The rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 6, characterized in that, The synchronizing rod (3022) is fixedly provided with an upper limit plate (3024) and a lower limit plate (3025) on the side near the fixing rib (2). The bottom of the upper limit plate (3024) is in contact with the top of the sliding plate (205), and the top of the lower limit plate (3025) is in contact with the bottom of the sliding plate (205).

8. A rapid and precise prefabricated construction method for large, irregularly shaped suspended ceilings in high-ceilinged spaces, characterized by: The rapid and precise prefabricated construction system for large, irregularly shaped suspended ceilings in high-ceilinged spaces, as described in any one of claims 1-7, includes the following steps: S1: First, install the fixing rod (2) on the ceiling (1) at equal intervals according to the ceiling building standard requirements using expansion screws. Then, align the fixing components of the main keel (3) with the through hole (202) at the installation notch (201). S2: Next, press the plug rod (3011) on the main keel (3) fixing seat (301) so that it is inserted into the through hole (202). At this time, the limiting rod (204) is inserted into the limiting hole (3012) of the plug rod (3011), and the fixing rib (2) is fixed to the main keel (3). S3: Then slide the secondary keel (4) through the mounting groove of the main keel (3) to the position of the fixed component, and lift the sliding piece (205) upward. Observe the locking block (401) of the secondary keel (4) through the mounting hole (302). Release the sliding piece (205) to make the locking strip (3023) lock into the locking slot (402) of the locking block (401). When disassembling the secondary keel (4), lift the sliding piece (205) again to make the locking strip (3023) disengage from the slot (402). Release the locking strip (3023) to limit the secondary keel (4) through the slot (402). S4: When disassembling the main keel (3), press down on the sliding piece (205) to cause the limiting rod (204) to disengage from the limiting hole (3012). At this time, the horizontal telescopic spring (3014) resets the plug rod (3011) and releases the limiting between the main keel (3) and the fixing rib (2).

9. The rapid and precise prefabricated construction method for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 8, characterized in that, The locking force of the fixing component is calculated by the following formula: in, For locking force, The elastic constant of the horizontal extension spring (3014) is determined by the material properties and spring design. This refers to the amount of displacement of the spring during assembly, which is compressed or stretched. The magnitude of the locking force is controlled by adjusting this displacement.

10. The rapid and precise prefabricated construction method for large, irregularly shaped suspended ceilings in high-ceilinged spaces according to claim 8, characterized in that, The function of the limiting component is to prevent the secondary keel (4) from sliding horizontally within the mounting groove of the main keel (3); The engagement of the clip (3023) and the slot (402) achieves precise positioning of the secondary keel through friction, and the fitting force... This is the force required for the card strip and card slot to fit together. This force is determined by both the coefficient of friction and the normal force, where: in, For the fitting force between the card strip (3023) and the card slot (402), The coefficient of friction between the card strip and the card slot. This refers to the normal force between the card strip and the card slot.

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