Anti-cracking structure for gypsum board suspended ceiling in tall and large space

Abstract

The invention relates to the technical field of gypsum board ceiling construction, in particular to a high and large space gypsum board ceiling anti-cracking structure which comprises a plurality of hanging rods and further comprises connecting discs and connecting rods, the connecting discs are arranged on the hanging rods, and the connecting rods are arranged on the connecting discs. The two ends of each connecting rod are connected with the connecting discs which are located on the two adjacent hanging rods and located at different heights through connecting mechanisms and are in an inclined state, the two adjacent connecting rods are in a crossed state and are connected with each other through a rotating assembly, and the rotating assemblies achieve mutual rotation or locking of the two connecting rods. The multiple hanging rods can be fixedly connected through the multiple connecting rods and the multiple connecting discs, when the single hanging rod is uneven in stress, pulling force is dispersed to the multiple hanging rods, the supporting effect is further improved through scissor fork type supporting, meanwhile, every two adjacent connecting rods are connected through the corresponding rotating assembly, and therefore the supporting effect is improved. Therefore, the cracking risk of the gypsum board suspended ceiling is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of gypsum board ceiling construction, and in particular to a high-space gypsum board ceiling anti-cracking structure. Background Art

[0002] With the acceleration of urbanization, the demand for various large public buildings is increasing, and the interior decoration of large spaces has become one of the important construction links. Among them, gypsum board ceilings are widely used in the interior decoration of large spaces due to their light weight, beautiful appearance and easy installation.

[0003] Gypsum board ceilings are generally made by assembling multiple gypsum boards on a keel, on which are provided multiple hangers connected to the top of the building. Due to the large number of gypsum boards distributed in the tall space, the pressure on the keel is relatively large, but multiple hangers support the keel individually. Therefore, when the load on the keel is uneven, it is easy to cause local damage to the hangers. Over time, the gypsum board ceiling is prone to cracks, which not only affects the appearance but also may bring safety hazards. Therefore, how to effectively prevent the gypsum board ceiling from cracking has become an urgent problem to be solved. Summary of the invention

[0004] In order to effectively reduce the risk of cracking of gypsum board ceilings, the present application provides a high-space gypsum board ceiling anti-cracking structure.

[0005] In the first aspect, the present application provides a large space gypsum board ceiling anti-cracking structure, which adopts the following technical solution: A high-space gypsum board ceiling crack prevention structure includes multiple hangers for connecting to keels, and also includes connecting plates and connecting rods. The connecting plates are arranged on the hangers and multiple connecting plates are arranged vertically at intervals. The two ends of the connecting rods are connected to the connecting plates located on two adjacent hangers and at different heights through a connecting mechanism and are in an inclined state. The two adjacent connecting rods form a cross state and are connected to each other through a rotating component. The rotating component enables the two connecting rods to rotate or lock with each other.

[0006] By adopting the above technical solution, the hanger is fixedly installed on the top of the building, and then the connecting rod is fixedly installed on the connecting plates of two adjacent hangers and different heights through the connecting mechanism, so that the connecting rod is in an inclined state, and the two adjacent connecting rods are in a crossed state. At the same time, the two adjacent connecting rods are connected to each other through a rotating assembly, so that multiple connecting rods connect multiple hangers to each other, and the keel is fixedly connected to the multiple hangers. Finally, the gypsum board is installed on the keel, and the installation of the gypsum board ceiling is completed in this way.

[0007] Multiple hangers can be fixedly connected to each other through multiple connecting rods and multiple connecting plates. When a single hanger is subjected to uneven force, the pulling force is dispersed to multiple hangers, thereby improving the supporting effect on the keel. In this way, the supporting effect of multiple hangers is improved, and the scissor-fork support further improves the supporting effect. Moreover, two adjacent connecting rods are connected to each other through a rotating assembly, thereby further improving the supporting effect on the keel, thereby reducing the risk of cracking of the gypsum board ceiling; and in the process of connecting the connecting rod and the connecting plate, unlocking the rotating assembly can also allow the two connecting rods to rotate with each other, thereby greatly improving the convenience of the installation process, and thus also improving the installation efficiency.

[0008] Optionally, the connecting mechanism includes: A connecting seat is arranged on the connecting plate and is provided with a connecting groove which is engaged with the connecting rod; The locking assembly is arranged on the connecting seat and is used to lock the connecting rod.

[0009] By adopting the above technical solution, the connecting rod is plugged into the connecting groove, and then the locking assembly is used to lock the connecting rod, so that the two ends of the connecting rod are fixedly installed on the two connecting plates, so that two adjacent suspension rods can be connected to each other. At the same time, after the locking assembly is unlocked, the connecting rod can be removed for replacement, thereby effectively reducing the risk of cracking of the gypsum board ceiling.

[0010] Optionally, the locking assembly includes: The locking screw passes through the connecting seat and the connecting rod in sequence; The locking nut is threadedly connected to the locking screw and pressed against the connecting seat for positioning.

[0011] By adopting the above technical solution, the locking screw is passed through the connecting seat and the connecting rod in sequence, and then the locking nut is threadedly connected to the locking screw, so that the locking screw head and the locking nut are pressed against the opposite side walls of the connecting seat, thereby locking the connecting rod.

[0012] Optionally, a positioning sleeve that is plugged and matched with the connecting rod is installed on the connecting seat, and a positioning ring that rests on the connecting seat for positioning is provided on the positioning sleeve, and the locking screw passes through the positioning sleeve for positioning.

[0013] By adopting the above technical solution, the positioning sleeve is inserted and installed on the connecting seat and the connecting rod, the positioning sleeve is pushed so that the positioning ring is against the connecting seat for positioning, and then the locking screw is passed through the positioning sleeve for positioning, so that when the connecting rod is subjected to force, it will pull and act on the positioning sleeve, thereby reducing the probability of damage to the locking screw, thereby further improving the supporting effect on the keel, thereby effectively reducing the probability of cracking of the gypsum board ceiling.

[0014] Optionally, the positioning sleeve is provided with a guide angle for easy insertion and installation on the connecting seat.

[0015] Optionally, the rotating assembly includes a rotating tube, a rotating screw and a rotating nut. The rotating tube is plugged into and installed on the two connecting rods and is used to realize the rotation of the two connecting rods. The rotating screw passes through the rotating tube. The rotating nut is threadedly connected to the rotating screw and pressed against the connecting rod and is used to lock the positions of the two connecting rods.

[0016] When the two connecting rods are connected to the two connecting plates, the rotating nut is turned away from the connecting rod, and the two connecting rods are locked.

[0017] Optionally, a plurality of connection seats on each of the connection plates are arranged in a circular array around the axis of the boom and are provided for connection with a plurality of connection rods located on the circumferential side of the boom.

[0018] By adopting the above technical solution, multiple suspension rods can be connected to each other, which further improves the supporting effect of the keel and reduces the risk of cracking of the ceiling.

[0019] Optionally, the plurality of connection seats are rotatably disposed on the connection disk, and the suspension rod is provided with a maintaining component which pushes the plurality of connection seats to press against the connection disk under the action of elastic force and is used to position the connection rod.

[0020] By adopting the above technical solution, the connecting rod is subjected to a great pulling force in a sudden situation, and the pulling force drives the connecting seat to rotate to avoid the position through the connecting rod, and the connecting seat overcomes the elastic force of the maintaining component to achieve buffering. When the pulling force disappears, the maintaining component continues to push the multiple connecting seats to rotate in the opposite direction under the action of the elastic force, so that the connecting rod continues to move back to its original position. Therefore, buffering can be achieved when it is subjected to a great pulling force in a sudden state, reducing the probability of the connecting rod being damaged, and after the pulling force disappears, the return movement continues to support the keel, thereby further improving the supporting effect on the keel and reducing the risk of cracking of the gypsum board ceiling.

[0021] Moreover, when one or several connecting rods are subjected to increased tension, they will drive the maintaining assembly away from the connecting seat at the same time. Therefore, the connecting rod whose tension has not increased will also drive the connecting seat to rotate, thereby reducing the tension of the connecting rod on the connecting plate, so that the connecting rod with increased tension can more easily drive the connecting seat to rotate, thereby further reducing the probability of damage to the connecting rod and further reducing the risk of cracking of the gypsum board ceiling.

[0022] Optionally, the maintenance component includes: A maintenance sleeve is slidably arranged on the suspension rod in a direction close to or away from the connection seat, an end of the connection seat close to the maintenance sleeve is provided with an inclined maintenance surface 1, and the maintenance sleeve is provided with a maintenance surface 2 that fits with the plurality of maintenance surfaces 1; A fixing ring, arranged on the boom; The spring has two ends pressing against the fixing ring and the maintaining sleeve, and the spring pushes the maintaining sleeve to approach the multiple connecting seats and makes the maintaining surface 2 close to the maintaining surface 1 for positioning, while making the connecting seat keep rotating away from the connecting rod and pressing against the connecting disk for positioning.

[0023] By adopting the above technical solution, the connecting rod pulls the connecting seat to rotate, and the rotation of the connecting seat drives the maintaining sleeve away from the connecting seat through the maintaining surface two and the maintaining surface one, and the maintaining sleeve moves to squeeze the spring, thereby achieving buffering of the movement of the connecting rod. When the suddenly increased pulling force decreases, the spring pushes the maintaining sleeve close to the connecting seat, and pushes the connecting seat to rotate and then presses against the connecting plate for positioning, so that the connecting seat continues to position the connecting rod, thereby reducing the risk of cracking of the gypsum board ceiling.

[0024] At the same time, the buffering of the connecting rod is achieved by the rotation of the connecting seat. Therefore, relative to the movement of the connecting seat, the rotation of the connecting seat can decompose the pulling force of the connecting rod into forces in the horizontal and vertical directions, thereby reducing the force that directly pulls the connecting seat horizontally to move. Therefore, the spring can maintain a larger pulling force on the connecting rod to maintain stability, thereby further reducing the risk of cracking of the gypsum board ceiling.

[0025] Optionally, a guide rod is slidably penetrated on the fixing ring along the axis of the boom and is threadedly connected to the maintaining sleeve. A plurality of guide rods and springs are arranged in a circular array around the axis of the boom, and the springs are sleeved on the guide rods for positioning.

[0026] By adopting the above technical solution, the guide rod is twisted to disengage from the maintaining sleeve, and then the spring can be pulled out for replacement, and then the spring is placed and pressed against the opposite side walls of the fixing ring and the maintaining sleeve, and then the guide rod is passed through the fixing ring and the spring threaded connection to the maintaining sleeve for positioning, thereby further improving the positioning effect of the maintaining sleeve on the connecting seat and further reducing the risk of cracking of the gypsum board ceiling.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: 1. Multiple hangers can be fixedly connected to each other through multiple connecting rods and multiple connecting plates. When a single hanger is subjected to uneven force, the pulling force is dispersed to multiple hangers, thereby improving the supporting effect on the keel. In this way, the supporting effect of multiple hangers is improved, and the scissor-fork support further improves the supporting effect. Moreover, two adjacent connecting rods are connected to each other by a rotating assembly, thereby further improving the supporting effect on the keel, thereby reducing the risk of cracking of the gypsum board ceiling.

[0028] 2. By unlocking the rotating assembly during the process of connecting the connecting rod and the connecting plate, the two connecting rods can also rotate relative to each other, thereby greatly improving the convenience of the installation process and thus improving the installation efficiency at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a three-dimensional structural schematic diagram of the anti-crack structure; Figure 2 It is a schematic diagram of the local structure of the anti-crack structure; Figure 3 yes Figure 2 The enlarged schematic diagram of the middle A part; Figure 4 yes Figure 2 The enlarged schematic diagram of the middle B part; Figure 5 It is a schematic diagram of the structure of the maintenance component in the anti-cracking structure, in which the side wall of the maintenance sleeve is cut away.

[0030] Figure numerals: 11, keel; 12, suspension rod; 13, connecting plate; 14, connecting rod; 15, rotating shaft; 2, connecting mechanism; 21, connecting seat; 22, connecting groove; 23, plug-in hole; 24, positioning sleeve; 3, locking assembly; 31, locking screw; 32, locking nut; 4, rotating assembly; 41, rotating tube; 42, rotating screw; 43, rotating nut; 5, maintaining assembly; 51, maintaining sleeve; 52, fixing ring; 53, spring; 54, maintaining surface one; 55, maintaining surface two; 56, guide rod. DETAILED DESCRIPTION

[0031] The present application is described in further detail below.

[0032] The embodiment of the present application discloses a high-space gypsum board ceiling anti-cracking structure.

[0033] Reference Figure 1 and Figure 2The anti-cracking structure of the gypsum board ceiling in a large space includes a plurality of suspension rods 12 for connecting with the keel 11, the keel 11 is used to support the gypsum board, and also includes a connecting plate 13 and a connecting rod 14. The plurality of suspension rods 12 are in a vertical state and the top is fixedly installed on the top of the building. The bottom of the plurality of suspension rods 12 is fixedly installed on the keel 11 to support the keel 11. The gypsum board is arranged at intervals and assembled on the keel 11. The connecting plate 13 is coaxially fixedly installed on the suspension rod 12 and multiple connecting plates 13 are arranged at vertical intervals. The connecting rod 14 is in an inclined state and the two ends are connected to the connecting plates 13 located at two adjacent suspension rods 12 and at different heights through a connecting mechanism 2. The two adjacent connecting rods 14 form a cross state, and the middle positions of the two adjacent connecting rods 14 are connected by a rotating assembly 4. The rotating assembly 4 can realize the mutual rotation or locking of the two connecting rods 14.

[0034] Reference Figure 2 and Figure 3 A plurality of rotating shafts 15 are fixedly installed on the upper surface of the connecting plate 13 in a circular array around the axis of the hanger 12, and the rotating shafts 15 are in a horizontal state; a plurality of connecting rods 14 located on the plurality of hangers 12 on the peripheral side of the same hanger 12 and on the same horizontal plane are connected to the same connecting plate 13 through a connecting mechanism 2, thereby realizing the interconnection of the same hanger 12 with the plurality of hangers 12 located on the peripheral side, thereby realizing the overall force distribution of the pulling force of the keel 11, thereby improving the stability of the keel 11.

[0035] The connection mechanism 2 includes a connection seat 21 and a locking assembly 3. A plurality of connection seats 21 are arranged at intervals around the axis of the suspension rod 12 and are arranged one-to-one with the plurality of rotating shafts 15. The connection seat 21 can be located below or above the connection disk 13. The following explanation is given by taking the connection seat 21 being located below the connection disk 13 as an example. The bottom of the connection seat 21 is rotatably mounted on the rotating shaft 15 and the top is vertically arranged downward. The side wall of the connection seat 21 on the side away from the suspension rod 12 extends to the outside of the connection disk 13 and is provided with a connection groove 22 that vertically penetrates the connection seat 21. One end of the connection rod 14 is clamped and mounted on the connection groove 22 and is provided with a connection hole.

[0036] The connecting seat 21 is provided with two plug-in holes 23 located on both sides of the connecting groove 22, and the two plug-in holes 23 are plugged with positioning sleeves 24 passing through the connecting groove 22. The outer wall of the positioning sleeve 24 is coaxially provided with a positioning ring, and the positioning ring abuts against the side wall of the connecting seat 21 for positioning. The end of the positioning sleeve 24 away from the positioning ring extends to the other plug-in hole 23 and is provided with a guide angle for easy plug-in installation on the plug-in hole 23; one end of the connecting rod 14 is snap-fitted and installed in the connecting groove 22, and the positioning sleeve 24 is passed through one of the plug-in holes 23 and the connecting hole in turn and extends into the other plug-in hole 23, and the positioning ring abuts against the connecting seat 21 for positioning, thereby realizing the connection of the connecting rod 14 and the connecting seat 21 for positioning.

[0037] The locking assembly 3 is arranged on the connecting seat 21 and is used to lock the connecting rod 14. The locking assembly 3 includes a locking screw 31 and a locking nut 32. The locking screw 31 passes through the positioning sleeve 24 and the head thereof abuts against the positioning ring for positioning. The locking nut 32 is threadedly connected to the locking screw 31 and pressed against the connecting seat 21 for positioning. Alternatively, the head of the locking screw 31 abuts against the connecting seat 21 and the locking nut 32 abuts against the positioning ring for positioning, thereby achieving a fixed connection between the connecting rod 14 and the connecting seat 21. At the same time, the locking nut 32 can be removed from the locking screw 31 to separate the connecting rod 14 from the connecting seat 21.

[0038] Reference Figure 2 and Figure 4 The rotating assembly 4 includes a rotating tube 41, a rotating screw 42, and a rotating nut 43. A connecting hole is opened at the middle position of the connecting rod 14, and the rotating tube 41 is inserted and installed on the two connecting holes. One end of the rotating tube 41 is provided with a rotating ring that abuts against the connecting rod 14 for positioning, and the other end extends into the connecting hole; the rotating screw 42 passes through the rotating tube 41 and makes the head abut against the rotating ring for positioning, the rotating nut 43 is threadedly connected to the rotating screw 42, and the rotating nut 43 presses against the connecting rod 14 for positioning, or the head of the rotating screw 42 abuts against the connecting rod 14 and the rotating nut 43 presses against the rotating ring for positioning, so that the two connecting rods 14 press against each other and cannot rotate.

[0039] The two connecting rods 14 are transported as a whole, and the two connecting rods 14 support the suspension rod 12 after being connected to the connecting seat 21. The two connecting rods 14 need to be positioned in the above two working conditions. When the connecting rods 14 are connected to the connecting seat 21, the two connecting rods 14 need to be in a rotating state. Therefore, when rotation is required, just turn the rotating nut 43 away from the connecting rod 14, thereby improving the supporting effect of the suspension rod 12 and the convenience of ceiling installation, thereby reducing the risk of ceiling cracking and improving the installation efficiency of the ceiling.

[0040] Reference Figure 2 and Figure 5 A maintaining assembly 5 is provided on the suspension rod 12 and at the connecting disk 13. The maintaining assembly 5 pushes the multiple connecting seats 21 to maintain their original state under the action of elastic force and is used to position the connecting rod 14. The maintaining assembly 5 includes a maintaining sleeve 51, a fixing ring 52 and a spring 53. The maintaining sleeve 51 is coaxially slidably sleeved on the suspension rod 12, and the maintaining sleeve 51 moves in a direction close to or away from the connecting seat 21. The maintaining sleeve 51 is located below the connecting disk 13; an inclined maintaining surface 1 54 is provided on the side wall at the bottom end of the multiple connecting seats 21 and away from the suspension rod 12. The height of the maintaining surface 1 54 close to the suspension rod 12 is higher than the height of the side away from the suspension rod 12. A maintaining surface 2 55 is provided at one end of the maintaining sleeve 51 close to the connecting seat 21, which is in close contact with the multiple maintaining surfaces 1 54.

[0041] The fixing ring 52 is coaxially fixedly installed on the suspension rod 12 and is located below the maintaining sleeve 51. A plurality of guide rods 56 are arranged on the fixing ring 52 in a circular array around the axis of the suspension rod 12. The guide rods 56 are slidably penetrated through the fixing ring 52 along the axis direction of the suspension rod 12, and the guide rods 56 are threadedly connected to the maintaining sleeve 51; a plurality of springs 53 are provided and are arranged one-to-one with the plurality of guide rods 56. The spring 53 is pressed against the opposite side walls of the fixing ring 52 and the maintaining sleeve 51, and the guide rods 56 pass through the spring 53 and are used to position the spring 53. The guide rods 56 are twisted to separate them from the maintaining sleeve 51 and then the spring 53 can be replaced. After the spring 53 is replaced, the guide rods 56 are threadedly connected to the maintaining sleeve 51 through the spring 53, thereby realizing the replacement of the spring 53.

[0042] The spring 53 pushes the maintaining surface 2 55 on the maintaining sleeve 51 to be tightly against the maintaining surface 1 54 of the multiple connecting seats 21 for positioning. When the tension on the connecting rod 14 suddenly increases, the connecting seat 21 pulled by the connecting rod 14 rotates, and the rotation of the connecting seat 21 drives the maintaining sleeve 51 away from the connecting disk 13 through the maintaining surface 1 54 and the maintaining surface 2 55, so as to buffer when the connecting rod 14 is subjected to a large impact force. At the same time, the maintaining sleeve 51 moves away from all the connecting seats 21, and other connecting seats 21 rotate under the action of the tension of the connecting rod 14, so as to achieve buffering of the connecting rod 14 generating impact force in multiple directions at the same time; when the impact force on the connecting rod 14 disappears, that is, the tension on the connecting seat 21 is reduced, the multiple springs 53 can push the maintaining sleeve 51 to move back, thereby pushing the multiple connecting seats 21 to rotate and press against the connecting disk 13 for positioning, so as to continue to support the suspension rod 12, improve the supporting effect on the keel 11, and reduce the risk of cracking of the gypsum board ceiling.

[0043] The working principle of the embodiment of the present application is as follows: The top of the hanger 12 is fixedly installed on the top of the building for positioning, and the two ends of the connecting rod 14 are fixedly installed on the connecting seats 21 located at different heights, so that the connecting rod 14 is in an inclined state and two adjacent connecting rods 14 are connected by a rotating component 4, so that multiple hangers 12 are connected to each other to form an integral structure, and finally the keel 11 is fixedly installed on the bottom of multiple hangers 12. Multiple hangers 12 can support the keel 11 as a whole. Finally, multiple gypsum boards are assembled on the keel 11 for positioning, thereby reducing the risk of cracking of the gypsum board ceiling.

[0044] When one or more of the connecting rods 14 are suddenly subjected to an impact force, the connecting rod 14 drives the connecting seat 21 to rotate, and the connecting seat 21 rotates to drive the maintaining sleeve 51 to move away from multiple connecting seats 21 at the same time, thereby achieving buffering for the connecting rod 14. When the impact force disappears, that is, the tension of the connecting rod 14 is reduced, the multiple springs 53 push the maintaining sleeve 51 to move back, and push the multiple connecting seats 21 to continue to press against the connecting plate 13 for positioning, thereby continuing to support and position the multiple suspension rods 12, thereby further reducing the risk of cracking of the gypsum board ceiling.

[0045] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-space gypsum board ceiling anti-crack structure, comprising a plurality of suspension rods (12) for connecting to a keel (11), characterized in that: It also comprises a connecting plate (13) and a connecting rod (14), wherein the connecting plate (13) is arranged on the suspension rod (12) and a plurality of connecting plates (13) are arranged at intervals in a vertical direction, and the two ends of the connecting rod (14) are connected to connecting plates (13) located at different heights on two adjacent suspension rods (12) through a connecting mechanism (2) and are in an inclined state, and the two adjacent connecting rods (14) are in a crossed state and are connected to each other through a rotating assembly (4), and the rotating assembly (4) enables the two connecting rods (14) to rotate or lock with each other.

2. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 1 is characterized by: The connecting mechanism (2) comprises: A connecting seat (21) is arranged on the connecting plate (13) and is provided with a connecting groove (22) for engaging with the connecting rod (14); A locking assembly (3) is arranged on the connecting seat (21) and is used to lock the connecting rod (14).

3. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 2 is characterized by: The locking assembly (3) comprises: A locking screw (31) passes through the connecting seat (21) and the connecting rod (14) in sequence; The locking nut (32) is threadedly connected to the locking screw (31) and pressed against the connecting seat (21) for positioning.

4. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 3 is characterized by: A positioning sleeve (24) is plugged and mounted on the connection seat (21) and is plugged and matched with the connection rod (14). The positioning sleeve (24) is provided with a positioning ring that abuts against the connection seat (21) for positioning. The locking screw (31) passes through the positioning sleeve (24) for positioning.

5. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 4 is characterized by: The positioning sleeve (24) is provided with a guide angle for facilitating plugging and installation on the connecting seat (21).

6. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 2, characterized in that: The rotating assembly (4) comprises a rotating tube (41), a rotating screw (42) and a rotating nut (43); the rotating tube (41) is plugged and installed on the two connecting rods (14) and is used to realize the rotation of the two connecting rods (14); the rotating screw (42) passes through the rotating tube (41); the rotating nut (43) is threadedly connected to the rotating screw (42) and pressed against the connecting rod (14) and is used to lock the position of the two connecting rods (14).

7. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 2 is characterized by: A plurality of connection seats (21) are arranged in a circular array around the axis of the suspension rod (12) on each connection plate (13) and are provided for connection with a plurality of connection rods (14) located on the circumferential side of the suspension rod (12).

8. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 7, characterized in that: The plurality of connection seats (21) are all rotatably arranged on the connection disk (13), and the suspension rod (12) is provided with a maintenance component (5) which, under the action of elastic force, pushes the plurality of connection seats (21) to press against the connection disk (13) and is used to position the connection rod (14).

9. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 8, characterized in that: The maintenance component (5) comprises: A maintaining sleeve (51) is slidably disposed on the suspension rod (12) in a direction approaching or moving away from the connecting seat (21); an end of the connecting seat (21) close to the maintaining sleeve (51) is provided with an inclined maintaining surface 1 (54); and the maintaining sleeve (51) is provided with a maintaining surface 2 (55) that is in contact with the plurality of maintaining surfaces 1 (54); A fixing ring (52) is arranged on the suspension rod (12); The spring (53) has two ends pressed against the fixing ring (52) and the maintaining sleeve (51), and the spring (53) pushes the maintaining sleeve (51) close to the plurality of connecting seats (21) and causes the second maintaining surface (55) to be tightly attached to the first maintaining surface (54) for positioning, while causing the connecting seat (21) to rotate away from the connecting rod (14) and press against the connecting disk (13) for positioning.

10. The anti-cracking structure of a gypsum board ceiling in a large space according to claim 9, characterized in that: A guide rod (56) threadably connected to the maintaining sleeve (51) is provided on the fixing ring (52) along the axis of the suspension rod (12). A plurality of the guide rods (56) and the spring (53) are arranged in a circular array around the axis of the suspension rod (12), and the spring (53) is sleeved on the guide rod (56) for positioning.

Images