Prefabricated modular building structure and construction method thereof

Abstract

The invention relates to the technical field of building structures, and discloses a prefabricated modular structure assembly and a construction method thereof.The prefabricated modular structure assembly comprises a frame body, wall blocks and pre-fixing assemblies, the pre-fixing assemblies comprise oblique grooves formed in the inner wall of the frame body, and the pre-fixing assemblies are used for preliminarily fixing prefabricated modules. Through cooperation of the inflation frame and the air bags, after the air bags are fully expanded, it is guaranteed that gaps between the frame body and the wall blocks are filled with the air bags, the overall sealing performance of the structural assembly can be improved through filling of the gaps, the stability between the connecting wall blocks is enhanced, and looseness or deformation caused by external force in the using process is reduced; the air bags can effectively prevent air, moisture and noise from permeating, heat exchange and noise transmission inside and outside the building are prevented, the heat preservation and energy saving effects are obvious, the advantages of sound insulation and noise reduction are achieved, the construction period is short, safety and reliability are achieved, and popularization is easy.

Description

Technical Field

[0001] The invention relates to the technical field of building structures, in particular to a prefabricated modular building structure and a construction method thereof. Background Art

[0002] Modular construction is an emerging building structure system. Each independent space in the system is a modular unit. All are prefabricated in the factory. After completion, they are transported to the site and assembled into a building through reliable connection methods. During the construction period, modular houses are often used near the construction site for workers to stay nearby and work conveniently.

[0003] The Chinese patent application number CN20231546019.1 discloses a prefabricated modular building seismic resistant structure and its construction method, which is used to suspend and fix the prefabricated module building on the foundation. The prefabricated module building is fixed at the corner by an assembly part, and the assembly part located at the bottom of the building forms a fixed assembly with the seismic resistant structure; it has the following advantages: it can avoid direct impact on the interior of the building during an earthquake, provide stable fixing measures, and at the same time, it can move in the first direction or the third direction when an earthquake occurs, and can also rotate at the corner to adapt to different degrees of displacement of the foundation during an earthquake, reducing the structural force on the interior of the building; by setting different numbers of springs on the corresponding top columns of the assembly parts, and adjusting the springs according to the actual weight distribution inside the building, changing the damping during rotation to adapt to different usage scenarios inside the building, the airbags in the top corners of the building can provide additional protection during an earthquake to prevent the building from disintegrating. In factory production, the dimensional accuracy of the prefabricated modules can be guaranteed, and the overall structural stability can be guaranteed.

[0004] However, during the construction process of this patent, the connection between prefabricated modules usually requires various sealing, reinforcement and fixing work, which is complicated and requires high standards from the construction workers. If you are not careful, problems such as water leakage and air leakage may occur. Under the influence of a large earthquake or strong wind, the connection nodes may be damaged before the components themselves, causing some modules of the prefabricated building to shift or collapse. In addition, factors such as the on-site environment may affect the accuracy and efficiency of module assembly, while increasing the difficulty of installation. Summary of the invention

[0005] Technical issues solved In view of the deficiencies in the prior art, the present invention provides a prefabricated modular building structure and a construction method thereof, which solves the relatively troublesome problem of on-site installation of prefabricated modules.

[0006] Technical Solution To achieve the above object, the present invention provides the following technical solution: a prefabricated modular building structure, comprising a frame body, on which wall blocks are arranged, and further comprising: A sealing assembly, which is arranged on the frame body and includes components such as an air pipe and an air bag, and is used to tightly seal and connect the prefabricated module and the frame body; A pre-fixing component, the pre-fixing component is arranged on the frame body, the pre-fixing component comprises an oblique groove, the oblique groove is opened on the inner wall of the frame body, and the pre-fixing component is used for preliminary fixing of the prefabricated module; A fastening assembly is arranged on the frame body, the fastening assembly comprises a telescopic tube, and the fastening assembly is used for performing secondary tight and precise fixation of the prefabricated module.

[0007] Preferably, the wall block is inserted into the inner wall of the frame body, and the wall block is in a stepped shape.

[0008] Preferably, a fixed block is fixedly connected to the inner wall of the wall block, the inner wall of the fixed block is fixedly connected to one end of the second elastic member, the other end of the second elastic member is fixedly connected to the limit block, the outer wall of the wall block is fixedly connected to a flexible pad, the outer wall of the limit block is slidably connected to the inner wall of the wall block, and the limit blocks are arranged on both sides of the wall block.

[0009] Preferably, one end of the telescopic tube is fixedly connected to the outer wall of the limit block, the other end of the telescopic tube is fixedly connected to the outer wall of the fixed block, a ventilation groove is provided on the outer wall of the fixed block, the fixed block is fixedly connected to one end of the fixed block away from the end of the telescopic tube with the ventilation pipe, the other end of the ventilation pipe is fixedly connected to the inflation frame, and the inner wall of the inflation frame is fixedly connected to the first one-way block.

[0010] Preferably, the bottom of the first one-way block is fixedly connected to one end of the third elastic member, the other end of the third elastic member is fixedly connected to the second one-way block, the bottom of the second one-way block is fixedly connected to the guide block, and a cam block is provided on the inner wall of the wall block for rotational connection.

[0011] Preferably, an access port is provided on the front side of the cam block, the inner wall of the inflation frame is fixedly connected to the exhaust frame, the side of the exhaust frame close to the inflation frame is fixedly connected to the limit frame, the side of the exhaust frame away from the limit frame is rotatably connected to the blocking block, the limit frame is connected to the exhaust block, and a fourth elastic member is connected between the exhaust block and the blocking block.

[0012] Preferably, the outer wall of the second one-way block is piston-connected to the inner wall of the inflation frame, the access port extends out of the surface of the wall block, and the outer wall of the blocking block is slidably connected to the inner wall of the exhaust frame.

[0013] Preferably, one end of the gas pipe is fixedly connected to the inner wall of the inflation frame, the other end of the gas pipe is fixedly connected to an air bag, the air bag is fixedly connected to the outer wall of the wall block, and the inner wall of the gas pipe is fixedly connected to a ventilation block.

[0014] Preferably, a support block is fixedly connected to the inner wall of the gas pipe, the outer wall of the support block is fixedly connected to one end of the fifth elastic member, the other end of the fifth elastic member is fixedly connected to the sealing cylindrical block, the outer wall of the support block is also fixedly connected to the guide rod, and the outer wall of the guide rod is slidably connected to the inner wall of the support block.

[0015] A prefabricated modular building structure construction method also includes the following steps: Step 1: Press the wall block into the frame body slot; Step 2: Rotate the access port to drive the second one-way block and the guide block to move up and down under the action of the third elastic member, so that the frame body and the flexible pad on the wall block fit more closely; Step 3: The air pressure at the top of the inflatable frame continues to increase. After entering the air pipe and contacting the sealing cylindrical block, the airbag gradually expands, so that the gap between the frame body and the wall block is tightly filled with the airbag.

[0016] Beneficial Effects Compared with the prior art, the present invention provides a prefabricated modular building structure and a construction method thereof, which has the following beneficial effects: 1. The present invention cooperates with the second elastic member and the telescopic tube, utilizes the elasticity of the second elastic member and the high-pressure buffering characteristics inside the telescopic tube, and can provide double protection for the limit block to more closely resist the oblique groove, thereby ensuring the stability of the connection between the wall block and the frame body, providing a more stable structural form, improving the sealing of the structure, simplifying multiple complex steps into a system, effectively protecting the module, improving the installation efficiency, and reducing the installation difficulty.

[0017] 2. The present invention cooperates with the inflatable frame and the airbag. After the airbag is fully expanded, the gap between the frame body and the wall block is filled with the airbag, which can effectively prevent the penetration of air, moisture and noise, improve the sealing and energy-saving performance of the overall structure, enhance the effect of noise reduction and sound insulation, and ensure that the connection between the wall block and the frame body is completely sealed. At the same time, the expansion of the airbag provides additional support, enhances the connection stability between the wall blocks, and reduces looseness or deformation caused by external force. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the framework structure of the present invention; Figure 3 It is a schematic diagram of the structure of the oblique groove of the present invention; Figure 4 It is a schematic diagram of the cross-sectional structure of the wall block of the present invention; Figure 5 It is a schematic diagram of the cross-sectional structure of the telescopic tube of the present invention; Figure 6 is a schematic structural diagram of the flexible pad of the present invention; Figure 7 It is a schematic diagram of the cross-sectional structure of the inflation frame of the present invention; Figure 8 It is a schematic diagram of the cross-sectional structure of the exhaust frame of the present invention; Fig. 9 is a schematic diagram of the cross-sectional structure of the gas transmission pipe of the present invention; Fig.10 It is a schematic diagram of the structure of the airbag of the present invention.

[0019] In the figure: 1. frame body; 2. sealing assembly; 21. air delivery pipe; 22. ventilation block; 23. support block; 24. fifth elastic member; 25. sealing cylindrical block; 26. guide rod; 27. air bag; 3. wall block; 4. pre-fixing assembly; 41. oblique groove; 42. fixing block; 43. second elastic member; 44. limiting block; 45. flexible pad; 5. fastening assembly; 51. telescopic tube; 52. ventilation groove; 53. ventilation pipe; 54. inflatable frame; 55. first one-way block; 56. third elastic member; 57. second one-way block; 58. guide block; 59. cam block; 510. access port; 511. exhaust frame; 512. limiting frame; 513. blocking block; 514. exhaust block; 515. fourth elastic member. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only part of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Embodiment 1 When existing prefabricated modular building structures are assembled on site, the connection method is the key to ensuring the stability of the overall structure. Under the action of strong earthquakes or strong winds, the connection nodes may be damaged before the components themselves, causing some modules of the prefabricated building to shift or collapse.

[0022] like Figures 1 to 7As shown, a prefabricated modular building structure includes a frame body 1, on which a wall block 3 is arranged, and also includes: a sealing component 2, which is arranged on the frame body 1, and the sealing component 2 includes an air pipe 21, and the sealing component 2 is used to tightly seal the prefabricated module and the frame body 1; a pre-fixing component 4, which is arranged on the frame body 1, and the pre-fixing component 4 includes an oblique groove 41, and the oblique groove 41 is opened on the inner wall of the frame body 1, and the pre-fixing component 4 is used to perform preliminary fixation of the prefabricated module; a fastening component 5, which is arranged on the frame body 1, and the fastening component 5 includes a telescopic tube 51, and the fastening component 5 is used to perform secondary tight fixation of the prefabricated module.

[0023] like Figures 1 to 6 As shown, the wall block 3 is inserted into the inner wall of the frame body 1, the wall block 3 is stepped, a fixed block 42 is fixedly connected to the inner wall of the wall block 3, the inner wall of the fixed block 42 is fixedly connected to one end of the second elastic member 43, the other end of the second elastic member 43 is fixedly connected to the limit block 44, the outer wall of the wall block 3 is fixedly connected to the flexible pad 45, the outer wall of the limit block 44 is slidably connected to the inner wall of the wall block 3, and the limit blocks 44 are arranged on both sides of the wall block 3.

[0024] The wall block 3 is installed according to the pre-designed drawing, and the wall block 3 is pressed into the slot of the frame body 1, so that the limit block 44 is retracted by contacting the frame of the frame body 1, and the limit block 44 is then contacted to the oblique groove 41 under the action of the second elastic member 43. Under the action of the oblique groove 41 and the limit block 44, the corresponding wall block 3 is initially clamped and fixed, so that the wall block 3 remains stable in the slot of the frame body 1, thereby preventing displacement or loosening during subsequent construction or use, and ensuring the safety and stability of the overall structure.

[0025] like Figures 4 to 8As shown, one end of the telescopic tube 51 is fixedly connected to the outer wall of the limit block 44, and the other end of the telescopic tube 51 is fixedly connected to the outer wall of the fixed block 42. The outer wall of the fixed block 42 is provided with a ventilation groove 52, so that the air in the fixed block 42 enters the telescopic tube 51 through the ventilation groove 52. The end of the fixed block 42 away from the telescopic tube 51 is fixedly connected to one end of the ventilation pipe 53, and the other end of the ventilation pipe 53 is fixedly connected to the inflation frame 54. The outer wall of the inflation frame 54 is fixedly connected to the inside of the wall block 3. The inner wall of the inflation frame 54 is fixedly connected with a first one-way block 55, and the first one-way block 55 is a one-way valve. The airflow flows from the second one-way block 57 to the first one-way block 55. The bottom of the first one-way block 55 is fixedly connected to one end of the third elastic member 56. The third elastic member 56 is in an extended state in a normal state. The other end of the third elastic member 56 is fixedly connected to the second one-way block 57. The bottom of the second one-way block 57 is fixedly connected to a guide block 58. The inner wall of the wall block 3 The cam block 59 is rotatably connected to the upper portion of the inflatable frame 54, and the cam block 59 is located directly below the guide block 58. An access port 510 is provided on the front of the cam block 59. An exhaust frame 511 is fixedly connected to the inner wall of the inflatable frame 54. A limiting frame 512 is fixedly connected to the inner side of the exhaust frame 511 close to the inflatable frame 54. A blocking block 513 is rotatably connected to the side of the exhaust frame 511 away from the limiting frame 512. An exhaust block 514 is connected to the limiting frame 512. The exhaust block 514 and the blocking block 513 are connected to each other. A fourth elastic member 515 is connected between 13, and the fourth elastic member 515 is initially in an extended state. The fourth elastic member 515 elastically squeezes the exhaust block 514, so that the exhaust block 514 is tightly fitted with the limiting frame 512 to prevent the internal gas of the inflation frame 54 from being discharged from the exhaust frame 511. The outer wall of the second one-way block 57 is piston-connected with the inner wall of the inflation frame 54, the access port 510 extends out of the surface of the wall block 3, and the outer wall of the blocking block 513 is slidably connected with the inner wall of the exhaust frame 511.

[0026] Then, the access port 510 is rotated using a tool, and the access port 510 resists and drives the second one-way block 57 and the guide block 58 to move up and down under the action of the third elastic member 56. When the second one-way block 57 moves upward, the air between the second one-way block 57 and the first one-way block 55 is pushed upward through the first one-way block 55 and enters the vent pipe 53. When the second one-way block 57 moves downward, the air between the second one-way block 57 and the first one-way block 55 forms a negative pressure, so that the outside air passes through the second one-way block 57 and enters between the second one-way block 57 and the first one-way block 55. The air flow direction of the second one-way block 57 and the first one-way block 55 moves according to the arrow mark, and such a reciprocating cycle allows the outside air to continuously enter the vent pipe 53, then enter the inner wall of the fixed block 42 through the vent pipe 53, and then enter the telescopic tube 51 through the vent groove 52, so that pressure is formed in the telescopic tube 51 to push the limit block 44, so that the limit block 44 is more closely against the oblique groove 41, so that the frame body 1 and the flexible pad 45 on the wall block 3 are more closely fitted, and the wall block 3 is tightened by the operation of the electric hexagonal wrench, which reduces the complexity of manual adjustment. The continuous air flow can quickly adjust and fix the position of the wall block 3, avoiding the errors that may occur in the traditional installation. By forming a gas differential pressure, the limit block 44 can more closely contact the oblique groove 41, thereby effectively enhancing the fit between the frame body 1 and each wall block 3, providing a more stable structure, and improving the sealing of the structure. This design simplifies multiple complex steps into one process, improves the efficiency of installation, and makes the installation faster and more convenient. The wall block 3 elastically squeezes the limit block 44 to contact the oblique groove 41 through the second elastic member 43, and the second elastic member 43 performs preliminary positioning, and the gas enters One step passes through the vent groove 52 to enter the telescopic tube 51, so that air pressure is formed in the telescopic tube 51 to push the limit block 44, so that the limit block 44 is more tightly and forcefully against the oblique groove 41, thereby increasing the stability of the connection between the wall block 3 and the frame body 1, and preventing the frame body 1 from vibrating when encountering an earthquake, and the single second elastic member 43 from being easily loosened. Through the dual protection of the elasticity of the second elastic member 43 and the high-pressure buffering characteristics inside the telescopic tube 51, the limit block 44 can be more tightly against the oblique groove 41, ensuring the stability of the connection between the wall block 3 and the frame body 1, improving the sealing of the structure, and effectively protecting the module.

[0027] Through the cooperation of the second elastic member 43 and the telescopic tube 51, the elasticity of the second elastic member 43 and the high-pressure buffering characteristics inside the telescopic tube 51 can provide double protection for the limit block 44 to more tightly resist the oblique groove 41, ensure the stability of the connection between the wall block 3 and the frame body 1, effectively protect the module, provide a more stable structure, and improve the sealing of the structure. This design simplifies multiple complex steps into one process, improves the efficiency of installation, and makes installation faster and more convenient.

[0028] Embodiment 2 Based on the above embodiments, the connection between prefabricated modules usually requires various sealing, reinforcement and fixing work. These processes are complicated and time-consuming, and have high technical requirements for construction workers. If you are not careful, problems such as water leakage and air leakage may occur, which increases the difficulty of installation.

[0029] like Figures 6 to 10 As shown, one end of the gas pipe 21 is fixedly connected to the inner wall of the inflation frame 54, the other end of the gas pipe 21 is fixedly connected to the air bag 27, the air bag 27 is fixedly connected to the outer wall of the wall block 3, the inner wall of the gas pipe 21 is fixedly connected to the ventilation block 22, the inner wall of the gas pipe 21 is fixedly connected to the support block 23, the outer wall of the support block 23 is fixedly connected to one end of the fifth elastic member 24, the other end of the fifth elastic member 24 is fixedly connected to the sealing cylindrical block 25, the outer wall of the support block 23 is fixedly connected to the guide rod 26, and the outer wall of the guide rod 26 is slidably connected to the inner wall of the support block 23.

[0030] The air pressure at the top of the inflatable frame 54 is continuously increasing, and the air enters the air delivery pipe 21 and contacts the sealing cylindrical block 25, so that the sealing cylindrical block 25 squeezes the fifth elastic member 24. The fifth elastic member 24 is in a compressed state, so that the high-pressure air enters the airbag 27 through the ventilation block 22, so that the airbag 27 expands, and the gap between the frame body 1 and the wall block 3 is filled with the airbag 27. By filling the gap, the airbag 27 can effectively prevent the penetration of air, moisture and noise, improve the sealing performance of the overall structure, and ensure that the connection between the wall block 3 and the frame body 1 is completely in a sealed state. At the same time, the airbag The expansion of 27 provides additional support, enhances the connection stability between the wall blocks 3, and reduces loosening or deformation caused by external forces during use. The flexible characteristics of the airbag 27 can effectively disperse the pressure applied to the frame body 1, reducing the risk of structural damage due to excessive local force. The airbag 27 can be adjusted according to the actual situation of the frame body 1 and the wall block 3, adapting to different shape and size changes, enhancing the adaptability of the system, realizing the dual functions of air sealing and structural fixation, reducing the steps required in the installation, and making the overall process simpler.

[0031] The airbag 27 expands by cooperating with the inflatable frame 54 and the airbag 27, so that the gap between the frame body 1 and the wall block 3 is filled with the airbag 27. By filling the gap, the airbag 27 can effectively prevent the penetration of air, moisture and noise, improve the sealing performance of the overall structure, and ensure that the connection between the wall block 3 and the frame body 1 is completely in a sealed state. At the same time, the expansion of the airbag 27 provides additional support, enhances the connection stability between the wall blocks 3, and reduces loosening or deformation caused by external forces during use.

[0032] Embodiment 3 Step 1: Press the wall block 3 into the slot of the frame body 1; Step 2: Rotate the access port 510, and the access port 510 drives the second one-way block 57 and the guide block 58 to move up and down under the action of the third elastic member 56, so that the frame body 1 and the flexible pad 45 on the wall block 3 fit more closely; Step 3: The air pressure at the top of the inflation frame 54 increases continuously, enters the air delivery pipe 21 and hits the sealing cylindrical block 25 , and the airbag 27 expands rapidly, so that the gap between the frame body 1 and the wall block 3 is filled with the airbag 27 .

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A prefabricated modular building structure, comprising a frame (1), wherein wall blocks (3) are arranged on the frame (1), characterized in that: Also includes: A sealing component (2), the sealing component (2) being arranged on the frame body (1), the sealing component (2) comprising an air delivery pipe (21), and the sealing component (2) being used to tightly seal between the prefabricated module and the frame body (1); A pre-fixing component (4), the pre-fixing component (4) being arranged on the frame body (1), the pre-fixing component (4) comprising an oblique groove (41), the oblique groove (41) being arranged on the inner wall of the frame body (1), the pre-fixing component (4) being used for preliminarily fixing the prefabricated module; A fastening assembly (5), the fastening assembly (5) being arranged on the frame body (1), the fastening assembly (5) comprising a telescopic tube (51), and the fastening assembly (5) being used for performing secondary tight fixation on the prefabricated module.

2. A prefabricated modular building structure according to claim 1, characterized in that: The wall block (3) is plugged into the inner wall of the frame body (1), and the wall block (3) is in a stepped shape.

3. A prefabricated modular building structure according to claim 2, characterized in that: A fixing block (42) is fixedly connected to the inner wall of the wall block (3); a second elastic member (43) is fixedly connected to the inner wall of the fixing block (42); the other end of the second elastic member (43) is fixedly connected to a limiting block (44); a flexible pad (45) is fixedly connected to the outer wall of the wall block (3); the outer wall of the limiting block (44) is slidably connected to the inner wall of the wall block (3); and the limiting blocks (44) are arranged on both sides of the wall block (3).

4. A prefabricated modular building structure according to claim 3, characterized in that: The telescopic tube (51) is fixedly connected to the outer wall of the limit block (44); the other end of the telescopic tube (51) is fixedly connected to the outer wall of the fixed block (42); a ventilation groove (52) is provided on the outer wall of the fixed block (42); one end of the fixed block (42) away from the telescopic tube (51) is fixedly connected to a ventilation pipe (53); the other end of the ventilation pipe (53) is fixedly connected to an inflation frame (54); and a first one-way block (55) is fixedly connected to the inner wall of the inflation frame (54).

5. A prefabricated modular building structure according to claim 4, characterized in that: The bottom of the first one-way block (55) is fixedly connected to a third elastic member (56), the other end of the third elastic member (56) is fixedly connected to a second one-way block (57), the bottom of the second one-way block (57) is fixedly connected to a guide block (58), and a cam block (59) is rotatably connected to the inner wall of the wall block (3).

6. A prefabricated modular building structure according to claim 5, characterized in that: The front side of the cam block (59) is provided with an access port (510); an exhaust frame (511) is fixedly connected to the inner wall of the inflation frame (54); a limiting frame (512) is fixedly connected to the inner side of the exhaust frame (511) close to the inflation frame (54); a blocking block (513) is rotatably connected to the inner side of the exhaust frame (511) away from the limiting frame (512); an exhaust block (514) is connected to the inner side of the limiting frame (512); and a fourth elastic member (515) is connected between the exhaust block (514) and the blocking block (513).

7. A prefabricated modular building structure according to claim 6, characterized in that: The outer wall of the second one-way block (57) is piston-connected to the inner wall of the inflation frame (54); the access port (510) extends out of the surface of the wall block (3); and the outer wall of the blocking block (513) is slidably connected to the inner wall of the exhaust frame (511).

8. A prefabricated modular building structure according to claim 7, characterized in that: One end of the gas delivery pipe (21) is fixedly connected to the inner wall of the inflation frame (54), the other end of the gas delivery pipe (21) is fixedly connected to an air bag (27), the air bag (27) is fixedly connected to the outer wall of the wall block (3), and the inner wall of the gas delivery pipe (21) is fixedly connected to a ventilation block (22).

9. A prefabricated modular building structure according to claim 8, characterized in that: A support block (23) is fixedly connected to the inner wall of the gas delivery pipe (21), a fifth elastic member (24) is fixedly connected to the outer wall of the support block (23), a sealing cylindrical block (25) is fixedly connected to the other end of the fifth elastic member (24), a guide rod (26) is fixedly connected to the outer wall of the support block (23), and the outer wall of the guide rod (26) is slidably connected to the inner wall of the support block (23).

10. A method for constructing a prefabricated modular building structure, using a prefabricated modular building structure according to any one of claims 1 to 9, characterized in that: The following usage steps are also included: Step 1: Press the required wall block (3) into the slot of the frame body (1); Step 2: rotating the access port (510), the access port (510) abutting against and driving the second one-way block (57) and the guide block (58) to move up and down reciprocatingly under the action of the third elastic member (56), so that the frame body (1) and the flexible pad (45) on the wall block (3) fit more closely; Step 3: The air pressure at the top of the inflatable frame (54) continues to increase, enters the air delivery pipe (21) and contacts the sealing cylindrical block (25), and the airbag (27) gradually expands, so that the gap between the frame body (1) and the wall block (3) is completely filled with the airbag (27).

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