Large-span suspended ceiling reinforcing and mounting device

Abstract

The invention discloses a large-span suspended ceiling reinforcing and mounting device which comprises bearing keels, a plurality of supporting keels, a plurality of connecting pieces and a plurality of connecting pieces, the bearing keels are arranged at intervals in the width direction of a to-be-suspended ceiling area to form a bearing keel layer, and first hanging rods are arranged on the bearing keels; the framework layer comprises a plurality of main keels arranged at intervals in the length direction of the bearing keels and connected with the bearing keels and a plurality of auxiliary keels connected with the main keels; the two vertical base plates are located at the two ends of the bearing keel layer correspondingly and extend in the width direction of the bearing keel, and meanwhile the two sides of each vertical base plate abut against the corresponding side wall of the to-be-suspended ceiling area and the end of the bearing keel layer correspondingly; at least part of the second suspenders are arranged corresponding to the bearing keels, and inclined rods connected with the bearing keels are further arranged on the second suspenders; the upper portion of the arc-shaped supporting plate abuts against the main keel located on the side and is connected with the main keel and the bearing keel at the same time, and the lower portion of the arc-shaped supporting plate is connected with the vertical base plate. The bearing requirement of the large-span suspended ceiling can be met, and the durability of the large-span suspended ceiling is improved.

Description

Large-span ceiling reinforcement installation device Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a large-span suspended ceiling reinforcement and installation device. Background Technology

[0002] With the rapid development of the construction industry, suspended ceiling projects have become an indispensable part of building decoration. Their function is not limited to beautifying the interior space, but also plays a key role in sound insulation, heat insulation, and fire prevention. Large-span suspended ceilings are widely used in large public buildings, commercial complexes and industrial plants, and their structural stability is directly related to the overall safety performance of the building.

[0003] Traditional ceiling engineering has the following defects: First, conventional light steel keel ceiling systems lack targeted structural reinforcement design when dealing with large-span conditions (such as ceiling lengths of 15-25m), and the overall rigidity of the keel system is difficult to meet actual load-bearing requirements; Second, traditional vertical hanger systems adopt a unidirectional force-bearing mechanism, which is prone to preload decay due to vibration effects when subjected to long-term dynamic loads such as air conditioning unit operation and subway vibration, leading to loosening of the main and secondary keel connection nodes. At the same time, alternating stress will also accelerate the fatigue damage process of the hanger anchor nodes, seriously affecting the durability of the system.

[0004] In view of this, it is necessary to design a large-span ceiling reinforcement installation device to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a large-span ceiling reinforcement and installation device that can meet the load-bearing requirements of large spans and improve durability.

[0006] To achieve the above-mentioned objectives, this invention provides a large-span suspended ceiling reinforcement and installation device, comprising: a load-bearing keel, wherein a plurality of load-bearing keels are spaced apart along the width direction of the area to be suspended to form a load-bearing keel layer, and the load-bearing keels are provided with first hangers for fixing the load-bearing keels to the ceiling of the area to be suspended; a frame layer, comprising a plurality of main keels spaced apart along the length direction of the load-bearing keels and connected to the load-bearing keels, and a plurality of secondary keels perpendicularly connected to the main keels; and vertical base plates, two of the vertical base plates being located at both ends of the load-bearing keel layer and extending along the width direction of the load-bearing keels. The vertical base plate extends downwards to below the frame layer, with its two sides abutting against the side wall and the end of the supporting keel layer corresponding to the area to be suspended. A second hanger is used to fix the vertical base plate to the top plate, with at least a portion of the second hanger corresponding to the supporting keel. The second hanger also has a diagonal brace connected to the supporting keel, forming a triangular structure between the second hanger, the supporting keel, the diagonal brace, and the vertical base plate. An arc-shaped support plate abuts against the main keel located on the side and is connected to both the main keel and the supporting keel, while its lower part is connected to the vertical base plate.

[0007] As a further improvement of the present invention, a horizontal plate and a vertical plate connected to the lower part of the vertical substrate are provided, such that a snap-fit ​​area is formed between the horizontal plate and the vertical plate at the lower part of the vertical substrate.

[0008] As a further improvement of the present invention, the lower part of the arc-shaped support plate is securely connected to the vertical base plate by a snap-fit ​​plate snapped into the snap-fit ​​area.

[0009] As a further improvement of the present invention, the main keel includes an upper plate, a lower plate, and a vertical connecting plate connecting the upper plate and the lower plate; the top of the arc-shaped support plate is provided with a horizontal fixing plate that abuts against the vertical connecting plate on one side and whose top surface is in close contact with the bottom surface of the upper plate.

[0010] As a further improvement of the present invention, it also includes a first rod extending along the width direction of the bearing keel and a plurality of second rods perpendicular to the first rod and spaced apart along the width direction of the bearing keel. The first rod and the bearing keel, as well as the first rod and the second rods, are slidably connected. The second rods are provided with a third hanger for fixing the second rods to the top plate.

[0011] As a further improvement of the present invention, the bottom surface of the first rod is provided with a plurality of first sliding grooves that are adapted to at least part of the cross-sectional shape of the supporting keel, so that the first rod forms a sliding connection with the supporting keel through the first sliding grooves while also forming a vertical locking limit.

[0012] As a further improvement of the present invention, the cross-section of the load-bearing keel is I-shaped.

[0013] As a further improvement of the present invention, a plurality of limiting blocks are provided at intervals along the length direction on the top surface of the first rod, and a second sliding groove adapted to the limiting blocks is provided on the second rod, which is distributed along the length direction, so that the first rod and the second rod are slidably connected under the cooperation of the limiting blocks and the second sliding groove.

[0014] As a further improvement of the present invention, a plurality of third rods are provided, wherein each of the second rods is provided with a third rod at the position corresponding to the limiting block.

[0015] As a further improvement of the present invention, the first rod is located on the side of the triangular structure away from the side wall.

[0016] The beneficial effects of this invention are as follows: 1. Traditional ceiling systems typically employ a unidirectional tension-bearing suspension rod system. This invention upgrades the traditional system into a spatial force-bearing system by forming a triangular structure with diagonal rods. This upgrade enables the ceiling system to withstand multi-directional loads, reduces mid-span deflection, and improves the overall structural resistance to deformation. The diagonal tension of the diagonal rods in the triangular structure can be decomposed into horizontal and vertical components. The horizontal component effectively suppresses the lateral sway of the keel, enhancing the stability of the ceiling system under dynamic loads. Furthermore, in the triangular structure formed by the second suspension rod, diagonal rod, load-bearing keel, and vertical base plate, the presence of the vertical base plate expands the point connection at the end of the conventional triangular support structure into a point-to-surface connection. That is, the presence of the vertical base plate expands the point-to-line contact between the end of the load-bearing keel and the second suspension rod into a point-to-surface contact, effectively improving the stability of the triangular structure. Simultaneously, the vertical base plate connects multiple triangular structures into a whole. Combined with the support of the side walls for the vertical base plate, the multiple triangular structures formed by the second suspension rod, diagonal rod, load-bearing keel, and vertical base plate effectively improve the stability of the load-bearing keel layer.

[0017] 2. This invention, by setting an arc-shaped support plate whose upper part abuts against the main keel located on the side and is connected to both the main keel and the load-bearing keel, and whose lower part is connected to the vertical base plate, can significantly enhance the overall rigidity of the structure, reduce the deformation of the structure caused by its own weight or external loads, and significantly improve the stability of the load-bearing keel layer and the frame layer, thus giving the ceiling reinforcement installation device good stability. The upper part of the arc-shaped support plate abutting against the main keel also increases the contact area between the arc-shaped support plate and the main keel to a certain extent, thereby improving the supporting effect of the arc-shaped support plate on the main keel.

[0018] 3. Based on the effective improvement of the stability of the load-bearing keel layer and the main keel layer by utilizing multiple interrelated triangular structures formed by diagonal braces and vertical base plates, as well as arc-shaped support plates, this invention further fixes several secondary keels on the main keel layer, so that a grid structure is formed between the main keel and the secondary keels, thereby enhancing the overall load-bearing capacity of the ceiling reinforcement installation device.

[0019] 4. Traditional ceiling systems are prone to fatigue damage at anchor points and loosening of joist connections under long-term dynamic loads. This invention optimizes the stress system by using a vertical base plate closely attached to the side wall, which serves as both a component and connecting element of multiple triangular structures and a support for the arc-shaped support plate. This effectively reduces the occurrence of these problems and improves the durability of the system. The ceiling reinforcement installation device of this invention is suitable for vibration-sensitive areas such as air conditioning rooms and subway stations. Its unique structure and reinforcement method can resist the attenuation of preload and loosening of nodes caused by vibration, ensuring the safety and stability of the ceiling system during long-term use. Attached Figure Description

[0020] Figure 1 is a schematic diagram of the structure of the large-span ceiling reinforcement installation device.

[0021] Figure 2 is an enlarged view of point A.

[0022] Figure 3 is an enlarged view of point B.

[0023] Figure 4 is a side view of the installation device for reinforcing large-span suspended ceilings.

[0024] Figure 5 is an enlarged view of point C.

[0025] Figure 6 is a partial structural schematic diagram of the large-span ceiling reinforcement installation device.

[0026] Figure 7 is an enlarged view of point D.

[0027] Reference numerals in the attached drawings: 11. Load-bearing keel; 12. First hanger; 121. Rod section; 122. Expansion bolt; 123. Fixing buckle; 21. Main keel; 211. Upper plate; 212. Lower plate; 213. Vertical connecting plate; 22. Secondary keel; 31. Vertical base plate; 32. Horizontal plate; 33. Vertical plate; 34. Snap-fit ​​area; 35. Second hanger; 351. Fixing block; 36. Diagonal rod; 41. Arc-shaped support plate; 42. Snap-fit ​​plate; 43. Horizontal fixing plate; 50. First rod body; 51. First slide groove; 52. Through hole; 53. Limiting block; 61. Second rod body; 62. Third hanger; 63. Second slide groove; 70. Ceiling panel; 71. Side wall. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] It should also be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and / or processing steps closely related to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0030] Additionally, it should be noted that the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] As shown in Figures 1-7, the present invention provides a large-span suspended ceiling reinforcement installation device, comprising: a load-bearing keel 11, wherein a plurality of load-bearing keels 11 are spaced apart along the width direction of the area to be suspended to form a load-bearing keel layer, and the load-bearing keels 11 are provided with first hangers 12 for fixing the load-bearing keels 11 to the ceiling of the area to be suspended; a frame layer, comprising a plurality of main keels 21 spaced apart along the length direction of the load-bearing keels 11 and connected to the load-bearing keels 11, and a plurality of secondary keels 22 perpendicularly connected to the main keels 21; and vertical base plates 31, wherein two vertical base plates 31 are respectively located at both ends of the load-bearing keel layer and extend along the width direction of the load-bearing keels 11, and simultaneously vertically The vertical base plate 31 abuts against the side wall 71 and the end of the supporting keel 11 layer corresponding to the area to be suspended on both sides, and the vertical base plate 31 extends downward to below the frame layer; the second hanger 35 is used to fix the vertical base plate 31 to the top plate, at least part of the second hanger 35 is set corresponding to the supporting keel 11, and the second hanger 35 is also provided with a diagonal bar 36 connected to the supporting keel 11, so that a triangular structure is formed between the second hanger 35, the supporting keel 11, the diagonal bar 36 and the vertical base plate 31; the arc-shaped support plate 41 abuts against the main keel located on the side and is connected to the main keel 21 and the supporting keel 11 at the same time, and the lower part is connected to the vertical base plate 31.

[0032] For example, as shown in Figure 2, the first hanger 12 includes a rod portion 121, an expansion screw 122 disposed at the top of the rod portion 121, and a fixing buckle 123 disposed at the bottom of the rod portion 121. The first hanger 12 is fixed to the top plate by the expansion screw 122, and the first hanger 12 is connected to the supporting keel 11 by the fixing buckle 123.

[0033] The second hanger 35 has the same structure as the first hanger 12. Both are fixed to the top plate by expansion screws 122, and the second hanger 35 is connected to the vertical base plate 31 by fixing buckles 123. The first hanger 12 and the second hanger 35 are connected by fixing buckles of the same shape because the bottom connecting parts are different.

[0034] As exemplarily shown in Figures 2 and 3, a fixing block 351 is provided on the second hanger 35, and one end of the diagonal rod 36 is connected to the fixing block 351, while the other end extends along the length of the supporting keel 11 and connects to it. Corresponding connectors for connecting the diagonal rod 36 are provided on the supporting keel 11. The specific connection methods between the diagonal rod 36 and the second hanger 35, and between the diagonal rod 36 and the supporting keel 11, can be achieved using existing technologies, ensuring a stable triangular structure is formed between the diagonal rod 36, the second hanger 35, the supporting keel 11, and the vertical base plate 31.

[0035] For example, as shown in Figures 1 and 4, a horizontal plate 32 and a vertical plate 33 connected to the lower part of the vertical substrate 31 are connected, such that a snap-fit ​​area 34 is formed between the horizontal plate 32 and the vertical plate 33 at the lower part of the vertical substrate 31. The lower part of the arc-shaped support plate 41 is stably connected to the vertical substrate 31 by a snap-fit ​​plate 42 snapped into the snap-fit ​​area 34. The snap-fit ​​plate 42 is a horizontal plate whose bottom surface is in contact with the inner bottom surface of the snap-fit ​​area 34 and whose two sides abut against the sides of the snap-fit ​​area 34. The connection between the arc-shaped support plate 41 and the vertical substrate 31 through the snap-fit ​​area 34 and the snap-fit ​​plate 42 can increase the support contact area between the arc-shaped support plate 41 and the vertical substrate 31. Based on the support effect of the side wall on the vertical substrate 31, the arc-shaped support plate 41 provides support for the load-bearing keel 11 and the main keel 21, thereby improving the stability of the load-bearing keel layer and the skeleton layer.

[0036] Traditional ceiling systems typically employ a unidirectional tension rod system. This invention upgrades the traditional system into a spatial force-bearing system by forming a triangular structure with diagonal rods 36. This upgrade enables the ceiling system to withstand loads in multiple directions, reduces mid-span deflection, and improves the overall deformation resistance of the structure. The diagonal tension of the diagonal rods 36 in the triangular structure can be decomposed into horizontal and vertical components. The horizontal component can effectively suppress the lateral sway of the keel, enhancing the stability of the ceiling system under dynamic loads. Furthermore, in the triangular structure formed between the second hanger 35, the diagonal brace 36, the supporting keel 11, and the vertical base plate 31, the presence of the vertical base plate 31 expands the point connection at the end of the conventional triangular support structure into a point-to-surface connection. That is, the presence of the vertical base plate 31 expands the point-to-line contact between the end of the supporting keel 11 and the second hanger 35 into a point-to-surface contact, which can effectively improve the stability of the triangular structure. At the same time, the vertical base plate 31 also connects multiple triangular structures into a whole. Combined with the support of the side wall 71 for the vertical base plate 31, the multiple triangular structures formed by the second hanger 35, the diagonal brace 36, the supporting keel 11, and the vertical base plate 31 can effectively improve the stability of the supporting keel 11 layer.

[0037] For example, as shown in Figure 5, the main keel 21 includes an upper plate 211, a lower plate 212, and a vertical connecting plate 213 connecting the upper plate 211 and the lower plate 212. The top of the arc-shaped support plate 41 is also provided with a horizontal fixing plate 43 that is tightly attached to the bottom surface of the upper plate 211. The side of the horizontal fixing plate 43 away from the vertical base plate 31 abuts against the vertical connecting plate 213. The connection between the load-bearing keel 11, the main keel 21, and the arc-shaped support plate 41 is achieved by bolts passing sequentially through the fixing buckles 123 on the load-bearing keel 11, the upper plate 211, and the horizontal fixing plate 43. The arrangement of the top of the arc-shaped support plate 41 abutting against the vertical connecting plate 213 via the horizontal fixing plate 43 effectively increases the contact area between the arc-shaped connecting plate and the main keel 21, thereby improving the support effect of the arc-shaped support plate 41 on the main keel 21.

[0038] The present invention can significantly enhance the overall rigidity of the structure by using the arc-shaped support plate 41, reduce the deformation of the structure caused by its own weight or external load, significantly improve the stability of the load-bearing keel layer and the skeleton layer, and make the ceiling reinforcement installation device have good stability.

[0039] For example, the supporting keel 11 and the main keel 21 are fixedly connected by a snap-fit ​​structure.

[0040] The basic framework of the ceiling reinforcement installation device of the present invention includes a load-bearing keel layer and a skeleton layer. Under the action of multiple triangular structures connected by the vertical base plate 31, the load-bearing capacity and durability of the load-bearing keel layer 11 are effectively improved. Furthermore, the skeleton layer and the arc-shaped support plate 41 set on the basis of the load-bearing keel layer 11 and the skeleton layer are used to further improve the stability of the load-bearing keel layer 11 and the skeleton layer, so that the ceiling reinforcement installation device can fully meet the load-bearing effect and durability requirements of ceilings with a length of 15-25m, and is suitable for vibration-sensitive areas such as air conditioning rooms and subway stations.

[0041] In this invention, by optimizing the force-bearing system, the vertical base plate 31, which is closely attached to the side wall, serves as both a component and a connecting element of multiple triangular structures and a support element of the arc-shaped support plate 41, effectively improving the stability and durability of the system.

[0042] For example, the main keel 21 and the secondary keel 22 are arranged in a grid pattern. Based on the multiple associated triangular structures formed by the diagonal brace 36 and the vertical base plate 31, and the arc-shaped support plate 41, this invention effectively improves the stability of the load-bearing keel layer 11 and the main keel layer 21. Furthermore, several secondary keels 22 are fixed to the main keel layer 21, forming a grid structure between the main keel 21 and the secondary keels 22, thus enhancing the overall load-bearing capacity of the ceiling reinforcement installation device.

[0043] For example, to further improve the load-bearing capacity of the reinforcement installation device, the reinforcement installation device also includes a first rod 50 extending along the width direction of the load-bearing keel 11 and a plurality of second rods 61 perpendicular to the first rod 50 and spaced apart along the width direction of the load-bearing keel 11 (Figures 1 and 6). The first rod 50 and the load-bearing keel 11, as well as the first rod 50 and the second rods 61, are slidably connected. The second rods 61 are provided with a third hanger 62 for fixing the second rods 61 to the top plate.

[0044] As shown in Figures 6 and 7, the bottom surface of the first rod 50 is provided with a plurality of first grooves 51 that are adapted to at least a portion of the cross-sectional shape of the supporting keel 11, so that the first rod 50 forms a sliding connection with the supporting keel 11 through the first grooves 51 while also forming a vertical locking limit. For example, the cross-section of the supporting keel 11 is I-shaped, and the first grooves 51 are square grooves with through holes 52 formed on the side away from the first rod 50 for the vertical portion of the supporting keel 11 to pass through.

[0045] The top surface of the first rod 50 is provided with a plurality of limiting blocks 53 spaced apart along its length. The second rod 61 is provided with second sliding grooves 63 distributed along its length and adapted to the limiting blocks 53, so that the first rod 50 and the second rod 61 are slidably connected by the cooperation of the limiting blocks 53 and the second sliding grooves 63. For example, the limiting blocks 53 are blocks with a T-shaped cross-section, and the corresponding second sliding grooves 63 are also T-shaped.

[0046] The first groove 51 on the first rod 50 is offset from the limiting block 53 in the horizontal direction.

[0047] Each second rod 61 is provided with several third hangers 62 along its length, with each second rod 61 having a third hanger 62 at a position corresponding to a limiting block 53. By providing third hangers 62 at positions corresponding to limiting blocks 53 on the second rod 61, a large force can be generated between the limiting block 53 and the second rod 61. This ensures that in vibration-sensitive areas such as air conditioning rooms and subway stations, the first rod 50 will not move relative to the second rod 61, thus maintaining a relatively stable state between the first rod 50, the second rod 61, and the supporting keel 11.

[0048] For example, the first rod 50 is located on the side of the triangular structure away from the sidewall.

[0049] The arrangement of the first rod 50 and the second rod 61 can not only improve the load-bearing capacity of the reinforcement installation device, but also dynamically adjust the installation position of the first rod 50 relative to the load-bearing keel 11 according to the characteristics of the keel material, cross-sectional parameters and actual stress state during the installation process, thereby improving the mid-span deflection of the load-bearing keel 11.

[0050] For example, the third rod 62 has the same structure as the first rod 12. The third rod 62 is fixed to the top plate by expansion screws 122, and the connection between the third rod 62 and the second rod 61 is achieved by fixing buckles 123 that are adapted to the shape of the second rod 61.

[0051] The construction steps of the large-span suspended ceiling reinforcement installation device are as follows: S1. Use a total station or laser level to measure the building structure elevation, determine the finished ceiling line, and mark the horizontal control line on the wall. According to the design drawings, mark the direction of the keel and the position of the suspension points on the top surface of the floor slab, i.e., the area to be suspended. S2. Drill holes at the marked positions on the top slab and use the first hanger 12 to fix the load-bearing keel 11 to the top slab. After the load-bearing keel 11 layer is installed, use U-shaped fixing clips and bolts to connect and fix the main keel 21 to the load-bearing keel 11. Then, install the secondary keel 22 so that the main keel 21 and the secondary keel 22 form a grid, constituting the skeleton layer of the suspended ceiling installation. S3. Install two vertical base plates on the two ends of the skeleton layer respectively: Drill holes on the top slab and use the second hanger 35 to fix the vertical base plates 31 to the top slab respectively, and make the vertical base plates 31 abut against the side wall and the end of the load-bearing keel 11 layer respectively. Install the arc-shaped support plate 41, with the horizontal fixing plate 43 at the top of the arc-shaped support plate 41 abutting against the vertical connecting plate 213 of the main keel 21 located on the side and fitting it to the bottom surface of the upper plate 211. Screws are passed through the fixing buckles on the bearing keel 11, the upper plate 211 and the horizontal fixing plate 43 in sequence to connect the bearing keel 11, the main keel 21 and the arc-shaped support plate 41. Fix one end of the diagonal rod 36 to the fixing block 351 of the second hanger 35 and the other end to the bearing keel 11. S4, Install the first hanger 12 on the bearing keel 11 and adjust it to the predetermined position. Connect the second hanger 35 to the first hanger 12 through the limiting block 53 and the second slide groove 63. Drill holes at the marked position on the top plate. Use the third hanger 62 to fix the second hanger 35 to the top plate and make the connection point of the third hanger 62 and the second rod 61 located directly above the limiting block 53. S5, Install the ceiling panel 70 on the frame layer.

[0052] When fixing two objects using the fixing buckle 123 as described in this invention, bolts are used for fixing. The shape of the fixing buckle 123 is selected according to the fixing requirements.

[0053] In this example, the main keel 21 and the secondary keel 22 are arranged on the same plane. In other examples, the secondary keel 22 can also be fixed below the main keel 21.

[0054] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A large-span suspended ceiling reinforcement installation device, characterized in that, include: The structure comprises: a load-bearing keel layer, wherein several load-bearing keels are spaced apart along the width of the area to be ceiling-installed, and the load-bearing keels are provided with first hangers for fixing the load-bearing keels to the ceiling of the area to be ceiling-installed; a frame layer, comprising several main keels spaced apart along the length of the load-bearing keels and connected to the load-bearing keels, and several secondary keels perpendicularly connected to the main keels; and vertical base plates, wherein two vertical base plates are respectively located at both ends of the load-bearing keel layer and extend along the width of the load-bearing keels, and the two sides of the vertical base plates respectively abut against the side wall corresponding to the area to be ceiling-installed and the end of the load-bearing keel layer, and the vertical base plates extend downward to below the frame layer; The second hanger is used to fix the vertical base plate to the top plate. At least part of the second hanger is set corresponding to the supporting keel. The second hanger is also provided with a diagonal bar connected to the supporting keel, so that a triangular structure is formed between the second hanger, the supporting keel, the diagonal bar and the vertical base plate. The arc-shaped support plate abuts against the main keel located on the side and is connected to both the main keel and the supporting keel. The lower part is connected to the vertical base plate.

2. The large-span suspended ceiling reinforcement installation device according to claim 1, characterized in that: The lower part of the vertical substrate is connected to a horizontal plate and a vertical plate connected to the end of the horizontal plate away from the vertical substrate, so that a snap-fit ​​area is formed between the horizontal plate and the vertical plate at the lower part of the vertical substrate.

3. The large-span suspended ceiling reinforcement installation device according to claim 2, characterized in that: The lower part of the arc-shaped support plate is securely connected to the vertical base plate by a snap-fit ​​plate snapped into the snap-fit ​​area.

4. The large-span suspended ceiling reinforcement installation device according to claim 1, characterized in that: The main keel includes an upper plate, a lower plate, and a vertical connecting plate connecting the upper plate and the lower plate; the top of the arc-shaped support plate is provided with a horizontal fixing plate that abuts against the vertical connecting plate on one side and whose top surface is in close contact with the bottom surface of the upper plate.

5. The large-span suspended ceiling reinforcement installation device according to claim 1, characterized in that: It also includes a first rod extending along the width direction of the supporting keel and a plurality of second rods perpendicular to the first rod and spaced apart along the width direction of the supporting keel. The first rod and the supporting keel, as well as the first rod and the second rods, are slidably connected. The second rods are provided with a third hanger for fixing the second rods to the top plate.

6. The large-span suspended ceiling reinforcement and installation device according to claim 5, characterized in that: The bottom surface of the first rod is provided with a plurality of first sliding grooves that are adapted to at least part of the cross-sectional shape of the supporting keel, so that the first rod forms a sliding connection with the supporting keel through the first sliding grooves while also forming a vertical locking limit.

7. The large-span suspended ceiling reinforcement and installation device according to claim 6, characterized in that: The cross-section of the load-bearing keel is I-shaped.

8. The large-span suspended ceiling reinforcement installation device according to claim 6, characterized in that: The top surface of the first rod is provided with a plurality of limiting blocks spaced apart along its length, and the second rod is provided with a second sliding groove distributed along its length that is adapted to the limiting blocks, so that the first rod and the second rod are slidably connected under the cooperation of the limiting blocks and the second sliding groove.

9. The large-span suspended ceiling reinforcement and installation device according to claim 8, characterized in that: Several third lifting rods are provided, and each second rod body is provided with a third lifting rod corresponding to the position of the limiting block.

10. The large-span suspended ceiling reinforcement and installation device according to claim 9, characterized in that: The first rod is located on the side of the triangular structure away from the side wall.

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