A prefabricated house

Abstract

This invention relates to the field of prefabricated building technology and discloses a prefabricated house, including a base frame. A vertical buffer assembly is fixedly installed on the top of the base frame. A middle partition frame is fixedly installed on the top of the vertical buffer assembly. A seismic isolation device is fixedly installed on the top of the middle partition frame. An assembly base plate is fixedly installed on the top of the seismic isolation device. Several columns are fixedly installed on the top of the assembly base plate. An upper friction plate is fixedly installed in the middle of the bottom of the assembly base plate. Assembly plates are fixedly installed between adjacent columns. A top frame is fixedly installed on the top of each column. In this prefabricated house, the upper and lower friction plates are separated by the continuous compression of an inflatable airbag by a top piston plate. The seismic isolation device reduces the seismic energy transmitted to the prefabricated house, thus reducing the possibility of the prefabricated house breaking apart due to rigid impact and improving safety.

Description

Technical Field

[0001] This invention relates to the field of prefabricated building technology, specifically to a prefabricated house. Background Technology

[0002] Prefabricated construction refers to the transfer of a large amount of on-site work from traditional construction methods to factories. Building components and accessories are prefabricated in factories, transported to the construction site, and assembled on-site using reliable connection methods. Prefabricated buildings mainly include precast concrete structures, steel structures, and modern wood structures.

[0003] When a major earthquake occurs, people usually feel an up-and-down jolt first, and then feel a strong horizontal sway after a few seconds to a dozen seconds. The transverse waves that cause the horizontal sway are the main cause of damage. In related technologies, prefabricated houses rely solely on rigid connections, which makes it difficult to improve the houses' ability to withstand natural disasters such as earthquakes.

[0004] Therefore, we propose a prefabricated housing method. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, the present invention provides the following technical solution: a prefabricated house, comprising a base frame, a vertical buffer assembly fixedly installed on the top of the base frame, a middle partition frame fixedly installed on the top of the vertical buffer assembly, a vibration isolation device fixedly installed on the top of the middle partition frame, an assembly base plate fixedly installed on the top of the vibration isolation device, a plurality of columns fixedly installed on the top of the assembly base plate, an upper friction plate fixedly installed in the middle of the bottom of the assembly base plate, assembly plates fixedly installed between adjacent columns, a top frame fixedly installed on the top of the columns, a fixing rod integrally connected to the inner side of the base frame, one end of the fixing rod integrally connected to the inner side of the base frame, and the other end of the fixing rod integrally connected to a fixing assembly located in the middle of the base frame.

[0006] Preferably, the fixing rod includes a connecting long rod integrally connected to the base frame and the fixing assembly. An air guide pipe is provided through the interior of the connecting long rod. One end of the air guide pipe is connected to the bottom of the vertical buffer assembly, and the other end of the air guide pipe is connected to the interior of the fixing assembly. The vibration isolation device includes a top plate fixedly installed to the bottom of the mounting base plate and a bottom plate fixedly installed to the top of the intermediate partition frame. Universal joints are provided on the opposite surfaces of the bottom plate and the top plate. A buffer rod is fixedly installed at the other end of the universal joint. The two ends of the buffer rod are respectively fixedly connected to the opposite surfaces of the bottom plate and the top plate by universal joints.

[0007] The buffer rod includes a buffer sleeve, inside which is a middle buffer spring. A first piston plate and a second piston plate are slidably connected inside the buffer sleeve, located at both ends of the middle buffer spring. A first connecting rod is integrally connected to the other side of the first piston plate, penetrating the top of the buffer sleeve. An upper buffer spring is sleeved on the outside of the first connecting rod, located above the first piston plate. The other end of the first connecting rod is fixedly installed with a universal joint mounted on the top plate. A second connecting rod is integrally connected to the other side of the second piston plate, penetrating the bottom of the buffer sleeve. A lower buffer spring is sleeved on the outside of the second connecting rod, located below the second piston plate. The other end of the second connecting rod is fixedly installed with a universal joint mounted on the bottom plate.

[0008] Preferably, the vertical buffer assembly includes a fixed vertical rod fixedly installed to the top of the base frame, and a movable sleeve fixedly installed to the bottom of the middle partition frame. An inflatable airbag is fixedly installed at the top inside the movable sleeve, and a fixed partition is integrally connected to the middle part inside the movable sleeve. An air inlet one-way valve is provided at the top of the inflatable airbag, extending to the outside of the top of the movable sleeve. The bottom of the movable sleeve is slidably connected to the fixed vertical rod.

[0009] Preferably, a central piston plate is integrally connected to the top of the fixed vertical rod, and a connecting round rod is integrally connected to the center of the top of the central piston plate. The connecting round rod is slidably connected to the center of the fixed partition. A top piston plate is integrally connected to the top of the connecting round rod. The top of the top piston plate is used for fixed connection to the bottom of the inflatable airbag. A damping spring is provided on the outer circumference of the connecting round rod. The top of the damping spring is in close contact with the bottom of the fixed partition, and the bottom of the damping spring is in close contact with the top of the central piston plate. A central tube is provided inside the fixed vertical rod and the connecting round rod. The top of the central tube is connected to the bottom of the inflatable airbag, and the bottom of the central tube is fixedly installed to one end of the air guide tube.

[0010] Preferably, the other end of the air guide tube extends into the interior of the fixing assembly. The fixing assembly includes a movable groove integrally connected to the connecting rod. A fixing plate is integrally connected to the center of the movable groove. A telescopic airbag is provided at the bottom of the fixing plate. A telescopic piston plate is fixedly installed at the bottom of the telescopic airbag. The outer peripheral surface of the telescopic piston plate slides in contact with the inner wall of the movable groove.

[0011] Preferably, a lifting spring is fixedly installed at the bottom inside the movable groove, the top of the lifting spring is in close contact with the bottom of the telescopic piston plate, the bottom of the lifting spring is fixedly installed at the bottom inside the movable groove, a transmission cylinder is integrally connected to the top of the telescopic piston plate, the transmission cylinder passes through the middle of the telescopic airbag and the fixed plate, and a lower friction plate is fixedly installed at the top of the transmission cylinder.

[0012] Preferably, the other end of the air guide tube passes through the telescopic piston plate to the interior of the telescopic airbag, the air guide tube is slidably connected to the bottom of the telescopic airbag, the air guide tube is connected to the interior of the telescopic airbag, and the top of the lower friction plate and the bottom of the upper friction plate are provided with grooves to increase friction.

[0013] Preferably, the air duct includes a connecting pipe, one end of which is fixedly installed to the bottom of the central pipe, and the other end of which is fixedly installed with an exhaust one-way valve located inside the telescopic airbag.

[0014] Preferably, the number of connecting rods is the same as the number of vertical buffer components, and several vertical buffer components are evenly arranged on the top of the base frame. One side of the air guide pipe passes through the base frame, the connecting rods, and the bottom of the fixing components.

[0015] Preferably, the transmission cylinder and the movable groove are concentric, the diameter of the lower friction plate is the same as the diameter of the movable groove, and the height of the lower friction plate is less than the distance from the top of the fixed plate to the top of the movable groove.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention provides a prefabricated house with the following advantages:

[0018] 1. This type of prefabricated house, by setting up a vertical buffer component, when the longitudinal wave of an earthquake is transmitted to the base frame, the fixed vertical rod moves up and down inside the movable sleeve, thereby causing the damping spring to expand and contract to cancel the energy of the seismic wave. This prevents the longitudinal wave from damaging the middle partition frame above the vertical buffer component, as well as the prefabricated house composed of the prefabricated base plate, prefabricated plate, columns, and top frame, thus effectively reducing the damaging force of the longitudinal wave on the house and protecting the safety of the prefabricated house.

[0019] 2. This type of prefabricated house, by setting up inflatable airbags and air ducts, when the first arriving longitudinal seismic wave causes the fixed vertical rod to move up and down inside the movable sleeve, the top piston plate continuously squeezes the inflatable airbag, allowing air to continuously enter the telescopic airbag through the central tube and air duct, causing the telescopic airbag to inflate and stretch, pushing the telescopic piston plate downward, which in turn pulls the lower friction plate downward through the transmission rod, separating the lower friction plate from the upper friction plate. When the transverse seismic wave is transmitted to the prefabricated house composed of the prefabricated base plate, prefabricated plate, columns, and top frame, the seismic isolation device installed between the prefabricated base plate and the middle partition plate reduces the energy of the transverse seismic wave transmitted to the prefabricated house, reducing the possibility of the prefabricated house being damaged and disintegrated due to rigid impact, thereby improving safety.

[0020] 3. This type of prefabricated house, by setting up upper and lower friction plates, separates under the action of vertical buffer components and fixing components when an earthquake occurs, allowing the prefabricated base plate to move freely. This reduces the seismic energy transmitted to the prefabricated house through the seismic isolation device. After the earthquake, the prefabricated base plate returns to its original position, and the telescopic piston plate rises under the action of the lifting spring, squeezing the telescopic airbag. This causes the gas in the telescopic airbag to be discharged through the connection between the air duct and the telescopic airbag, thereby causing the lower friction plate to rise and press against the upper friction plate, preventing the prefabricated base plate from shaking. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the upper friction plate of the present invention;

[0023] Figure 3 This is a schematic diagram of the base frame of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the fixing component of the present invention;

[0025] Figure 5 This is a schematic diagram of the transmission cylinder of the present invention;

[0026] Figure 6 This is a schematic diagram of the vertical buffer assembly of the present invention;

[0027] Figure 7 This is a schematic diagram of the telescopic airbag and telescopic piston plate of the present invention;

[0028] Figure 8 This is a schematic diagram of the air duct and telescopic airbag of the present invention;

[0029] Figure 9 This is a schematic diagram of the vibration isolation device of the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the buffer rod of the present invention.

[0031] In the diagram: 1. Base frame; 2. Vertical buffer assembly; 21. Fixed vertical rod; 22. Movable sleeve; 23. Middle piston plate; 24. Damping spring; 25. Connecting round rod; 26. Top piston plate; 27. Central tube; 28. Fixed partition plate; 29. ​​Inflatable airbag; 210. Inlet one-way valve; 3. Middle partition frame; 4. Vibration isolation device; 41. Top plate; 42. Bottom plate; 43. Buffer rod; 431. Buffer sleeve; 432. First connecting rod; 433. First piston plate; 434. Upper buffer spring; 435. 436. Second connecting rod; 437. Lower buffer spring; 438. Middle buffer spring; 44. Universal joint; 5. Assembly base plate; 6. Fixed rod; 61. Connecting long rod; 62. Air guide pipe; 621. Connecting pipe; 622. Air outlet check valve; 7. Fixed assembly; 71. Movable groove; 72. Fixed plate; 73. Telescopic airbag; 74. Transmission cylinder; 75. Telescopic piston plate; 76. Lifting spring; 77. Lower friction plate; 8. Assembly plate; 9. Column; 10. Top frame; 11. Upper friction plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figures 1 to 8 A prefabricated house includes a base frame 1, a vertical buffer assembly 2 fixedly installed on the top of the base frame 1, a middle partition frame 3 fixedly installed on the top of the vertical buffer assembly 2, a vibration isolation device 4 fixedly installed on the top of the middle partition frame 3, an assembly base plate 5 fixedly installed on the top of the vibration isolation device 4, a plurality of columns 9 fixedly installed on the top of the assembly base plate 5, an upper friction plate 11 fixedly installed in the middle of the bottom of the assembly base plate 5, an assembly plate 8 fixedly installed between adjacent columns 9, a top frame 10 fixedly installed on the top of the columns 9, a fixing rod 6 integrally connected to the inner side of the base frame 1, one end of the fixing rod 6 integrally connected to the inner side of the base frame 1, and the other end of the fixing rod 6 integrally connected to a fixing assembly 7 located in the middle of the base frame 1.

[0034] In one embodiment of the present invention, the fixing rod 6 includes a connecting long rod 61 integrally connected to the base frame 1 and the fixing component 7. An air guide pipe 62 is provided through the interior of the connecting long rod 61. One end of the air guide pipe 62 is connected to the bottom of the vertical buffer component 2, and the other end of the air guide pipe 62 is connected to the interior of the fixing component 7. The vibration isolation device 4 includes a top plate 41 fixedly installed to the bottom of the mounting base plate 5 and a bottom plate 42 fixedly installed to the top of the intermediate partition frame 3. A universal joint 44 is provided on the opposite surface of the bottom plate 42 and the top plate 41. A buffer rod 43 is fixedly installed on the other end of the universal joint 44. The two ends of the buffer rod 43 are fixedly connected to the universal joint 44 on the opposite surface of the bottom plate 42 and the top plate 41, respectively.

[0035] The buffer rod 43 includes a buffer sleeve 431. An intermediate buffer spring 438 is provided inside the buffer sleeve 431. A first piston plate 433 and a second piston plate 436 located at both ends of the intermediate buffer spring 438 are slidably connected inside the buffer sleeve 431. A first connecting rod 432 penetrating the top of the buffer sleeve 431 is integrally connected to the other side of the first piston plate 433. An upper buffer spring 434 located above the first piston plate 433 is sleeved on the outside of the first connecting rod 432. The other end of the first connecting rod 432 is fixedly installed with a universal joint 44 installed on the top plate 41. A second connecting rod 435 penetrating the bottom of the buffer sleeve 431 is integrally connected to the other side of the second piston plate 436. A lower buffer spring 437 located below the second piston plate 436 is sleeved on the outside of the second connecting rod 435. The other end of the second connecting rod 435 is fixedly installed with a universal joint 44 installed on the bottom plate 42.

[0036] In one embodiment of the present invention, the vertical buffer assembly 2 includes a fixed vertical rod 21 fixedly installed on the top of the base frame 1, and a movable sleeve 22 fixedly installed on the bottom of the middle partition frame 3. An inflatable airbag 29 is fixedly installed on the top of the movable sleeve 22, and a fixed partition 28 is integrally connected to the middle part of the movable sleeve 22. An air inlet one-way valve 210 is provided on the top of the inflatable airbag 29 and extends through to the outside of the top of the movable sleeve 22. The bottom of the movable sleeve 22 is slidably connected to the fixed vertical rod 21.

[0037] In one embodiment of the present invention, a central piston plate 23 is integrally connected to the top of the fixed vertical rod 21, and a connecting round rod 25 is integrally connected to the center of the top of the central piston plate 23. The connecting round rod 25 is slidably connected to the center of the fixed partition plate 28. A top piston plate 26 is integrally connected to the top of the connecting round rod 25. The top of the top piston plate 26 is used for fixed connection to the bottom of the inflatable airbag 29. A damping spring 24 is provided on the outer circumferential surface of the connecting round rod 25. The top of the damping spring 24 is in tight contact with the bottom of the fixed partition plate 28, and the bottom of the damping spring 24 is in tight contact with the top of the central piston plate 23. A central piston plate 23 is provided inside the fixed vertical rod 21 and the connecting round rod 25. The top of the central tube 27 is connected to the bottom of the inflatable airbag 29, and the bottom of the central tube 27 is fixedly installed at one end of the air duct 62. By setting up the vertical buffer component 2, when the longitudinal wave of the earthquake is transmitted to the base frame 1, the fixed vertical rod 21 moves up and down inside the movable sleeve 22, thereby causing the damping spring 24 to extend and retract to cancel the energy of the seismic wave. This prevents the longitudinal wave from damaging the middle partition frame 3 above the vertical buffer component 2, as well as the prefabricated house composed of the assembly base plate 5, assembly plate 8, column 9, and top frame 10. This effectively reduces the damage force of the longitudinal wave to the house and protects the safety of the prefabricated house.

[0038] In one embodiment of the present invention, the other end of the air guide tube 62 extends into the interior of the fixing component 7. The fixing component 7 includes a movable groove 71 integrally connected to the connecting rod 61. A fixing plate 72 is integrally connected to the middle of the movable groove 71. A telescopic airbag 73 is provided at the bottom of the fixing plate 72. A telescopic piston plate 75 is fixedly installed at the bottom of the telescopic airbag 73. The outer peripheral surface of the telescopic piston plate 75 slides in contact with the inner wall of the movable groove 71.

[0039] In one embodiment of the present invention, a lifting spring 76 is fixedly installed at the bottom inside the movable groove 71. The top of the lifting spring 76 is in close contact with the bottom of the telescopic piston plate 75, and the bottom of the lifting spring 76 is fixedly installed at the bottom inside the movable groove 71. A transmission cylinder 74 is integrally connected to the top of the telescopic piston plate 75. The transmission cylinder 74 passes through the middle of the telescopic airbag 73 and the fixed plate 72. A lower friction plate 77 is fixedly installed on the top of the transmission cylinder 74. By setting the inflatable airbag 29 and the air guide pipe 62, when the first arriving seismic longitudinal wave causes the fixed vertical rod 21 to move up and down inside the movable sleeve 22, the top piston plate... 26 continuously compresses the inflatable airbag 29, causing air to continuously enter the telescopic airbag 73 through the central tube 27 and the air guide tube 62, causing the telescopic airbag 73 to inflate and stretch, pushing the telescopic piston plate 75 to move downwards. This, in turn, pulls the lower friction plate 77 downwards via the transmission rod, separating the lower friction plate 77 from the upper friction plate 11. When the seismic shear wave is transmitted to the prefabricated house composed of the prefabricated base plate 5, prefabricated plate 8, column 9, and top frame 10, the seismic isolation device 4 installed between the prefabricated base plate 5 and the middle partition plate reduces the energy of the seismic shear wave transmitted to the prefabricated house, reducing the possibility of the prefabricated house being damaged and disintegrated due to rigid impact, thereby improving safety.

[0040] In one embodiment of the present invention, the other end of the air guide tube 62 passes through the telescopic piston plate 75 to the interior of the telescopic airbag 73. The air guide tube 62 and the bottom of the telescopic airbag 73 are slidably connected through each other. The air guide tube 62 and the interior of the telescopic airbag 73 are connected. The top of the lower friction plate 77 and the bottom of the upper friction plate 11 are provided with grooves to increase friction.

[0041] In one embodiment of the present invention, the air duct 62 includes a connecting pipe 621, one end of which is fixedly installed to the bottom of the central pipe 27, and the other end of which is fixedly installed with an air outlet one-way valve 622 located inside the telescopic airbag 73.

[0042] In one embodiment of the present invention, the number of connecting rods 61 is the same as the number of vertical buffer components 2, and several vertical buffer components 2 are evenly arranged on the top of the base frame 1. The air duct 62 passes through the base frame 1, the connecting rods 61, and the bottom of the fixing component 7 on one side.

[0043] In one embodiment of the present invention, the transmission cylinder 74 and the movable groove 71 are arranged concentrically. The diameter of the lower friction plate 77 is the same as the diameter of the movable groove 71. The height of the lower friction plate 77 is less than the distance from the top of the fixed plate 72 to the top of the movable groove 71. When an earthquake occurs, the vertical buffer assembly 2 and the fixed assembly 7 separate, allowing the assembly base plate 5 to move freely. This reduces the seismic energy transmitted to the prefabricated house through the seismic isolation device 4. After the earthquake ends, the assembly base plate 5 resets. Under the action of the lifting spring 76, the telescopic piston plate 75 rises and compresses the telescopic airbag 73, causing the gas in the telescopic airbag 73 to be discharged through the connection between the air pipe 62 and the telescopic airbag 73. This causes the lower friction plate 77 to rise and press against the upper friction plate 11, preventing the assembly base plate 5 from shaking.

[0044] It should be noted that during use, when the longitudinal wave of an earthquake reaches the base frame 1, the fixed vertical rod 21 moves up and down inside the movable sleeve 22, causing the damping spring 24 to extend and retract, thus canceling the energy of the seismic wave. This prevents the longitudinal wave from damaging the intermediate partition frame 3 above the vertical buffer assembly 2, as well as the prefabricated house composed of the assembly base plate 5, assembly plate 8, column 9, and top frame 10. When the first longitudinal wave of an earthquake causes the fixed vertical rod 21 to move up and down inside the movable sleeve 22, the top piston plate 26 continuously compresses the inflatable airbag 29, causing air to continuously enter the telescopic airbag 73 through the central tube 27 and the air guide tube 62. This causes the telescopic airbag 73 to inflate and extend, pushing the telescopic piston plate 75 downward. This, through the transmission rod, pulls the lower friction plate 77 downward, separating the lower friction plate 77 from the upper friction plate 11. When the transverse wave of an earthquake reaches the prefabricated house composed of the assembly base plate 5, assembly plate 8, column 9, and top frame 10... When the prefabricated house is in use, the seismic isolation device 4 installed between the prefabricated base plate 5 and the middle partition reduces the energy of the seismic shear wave transmitted to the prefabricated house, reducing the possibility of the prefabricated house being damaged and disintegrated due to rigid impact, thereby improving safety. When an earthquake occurs, the upper friction plate 11 and the lower friction plate 77 separate under the action of the vertical buffer component 2 and the fixing component 7, allowing the prefabricated base plate 5 to move freely. Then, the upper buffer spring 434, the lower buffer spring 437 and the middle buffer spring 438 inside the buffer sleeve 431 of the seismic isolation device 4 buffer the vibration transmitted by the middle partition frame 3, reducing the seismic energy transmitted to the prefabricated house. After the earthquake, the prefabricated base plate 5 returns to its original position. Under the action of the lifting spring 76, the telescopic piston plate 75 rises and squeezes the telescopic airbag 73, so that the gas in the telescopic airbag 73 is discharged through the connection between the air duct 62 and the telescopic airbag 73, thereby causing the lower friction plate 77 to rise and press against the upper friction plate 11 to prevent the prefabricated base plate 5 from shaking.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A prefabricated house, comprising a base frame (1), characterized in that: A vertical buffer assembly (2) is fixedly installed on the top of the base frame (1). A middle partition frame (3) is fixedly installed on the top of the vertical buffer assembly (2). A vibration isolation device (4) is fixedly installed on the top of the middle partition frame (3). An assembly base plate (5) is fixedly installed on the top of the vibration isolation device (4). Several columns (9) are fixedly installed on the top of the assembly base plate (5). An upper friction plate (11) is fixedly installed in the middle of the bottom of the assembly base plate (5). An assembly plate (8) is fixedly installed between adjacent columns (9). A top frame (10) is fixedly installed on the top of the columns (9). A fixing rod (6) is integrally connected to the inner side of the base frame (1). One end of the fixing rod (6) is integrally connected to the inner side of the base frame (1). The other end of the fixing rod (6) is integrally connected to a fixing assembly (7) located in the middle of the base frame (1). The fixing rod (6) includes a connecting long rod (61) integrally connected to the base frame (1) and the fixing component (7). An air guide pipe (62) is provided through the interior of the connecting long rod (61). One end of the air guide pipe (62) is connected to the bottom of the vertical buffer component (2), and the other end of the air guide pipe (62) is connected to the interior of the fixing component (7). The vertical buffer assembly (2) includes a fixed vertical rod (21) fixedly installed on the top of the base frame (1) and a movable sleeve (22) fixedly installed on the bottom of the middle partition frame (3). An inflatable airbag (29) is fixedly installed on the top of the movable sleeve (22). A fixed partition plate (28) is integrally connected to the middle of the movable sleeve (22). An air inlet one-way valve (210) is provided on the top of the inflatable airbag (29) and extends through to the outside of the top of the movable sleeve (22). The bottom of the movable sleeve (22) is slidably connected to the fixed vertical rod (21). The top of the fixed vertical rod (21) is integrally connected to a middle piston plate (23), and the middle of the top of the middle piston plate (23) is integrally connected to a connecting round rod (25). The connecting round rod (25) is slidably connected to the middle of the fixed partition plate (28). The top of the connecting round rod (25) is integrally connected to a top piston plate (26). The top of the top piston plate (26) is used for fixed connection to the bottom of the inflatable airbag (29). The outer circumferential surface of the connecting round rod (25) is provided with A damping spring (24) is provided, the top of the damping spring (24) is in close contact with the bottom of the fixed partition (28), the bottom of the damping spring (24) is in close contact with the top of the middle piston plate (23), a central tube (27) is provided inside the fixed vertical rod (21) and the connecting round rod (25), the top of the central tube (27) is connected to the bottom of the inflatable airbag (29), and the bottom of the central tube (27) is fixedly installed to one end of the air guide tube (62); The other end of the air guide tube (62) extends into the interior of the fixing component (7). The fixing component (7) includes a movable groove (71) integrally connected to the connecting rod (61). A fixing plate (72) is integrally connected to the middle of the movable groove (71). A telescopic airbag (73) is provided at the bottom of the fixing plate (72). A telescopic piston plate (75) is fixedly installed at the bottom of the telescopic airbag (73). The outer peripheral surface of the telescopic piston plate (75) slides in contact with the inner wall of the movable groove (71). A lifting spring (76) is fixedly installed at the bottom inside the movable groove (71). The top of the lifting spring (76) is in close contact with the bottom of the telescopic piston plate (75). The bottom of the lifting spring (76) is fixedly installed at the bottom inside the movable groove (71). A transmission cylinder (74) is integrally connected to the top of the telescopic piston plate (75). The transmission cylinder (74) passes through the middle of the telescopic airbag (73) and the fixed plate (72). A lower friction plate (77) is fixedly installed at the top of the transmission cylinder (74).

2. A prefabricated house according to claim 1, characterized in that: The vibration isolation device (4) includes a top plate (41) fixedly installed at the bottom of the mounting base plate (5) and a bottom plate (42) fixedly installed at the top of the intermediate partition frame (3). A universal joint (44) is provided on the opposite side of the bottom plate (42) and the top plate (41). A buffer rod (43) is fixedly installed at the other end of the universal joint (44). The two ends of the buffer rod (43) are respectively fixedly connected to the universal joint (44) provided on the opposite side of the bottom plate (42) and the top plate (41). The buffer rod (43) includes a buffer sleeve (431), inside which is a middle buffer spring (438). A first piston plate (433) and a second piston plate (436) are slidably connected inside the buffer sleeve (431) at both ends of the middle buffer spring (438). A first connecting rod (432) penetrating the top of the buffer sleeve (431) is integrally connected to the other side of the first piston plate (433). The first connecting rod (432) is sleeved on the outside of the first piston plate (433). The upper buffer spring (434) is located above the first connecting rod (432). The other end of the first connecting rod (432) is fixedly installed with the universal joint (44) installed on the top plate (41). The other side of the second piston plate (436) is integrally connected with the second connecting rod (435) that passes through the bottom of the buffer sleeve (431). The lower buffer spring (437) located below the second piston plate (436) is sleeved on the outside of the second connecting rod (435). The other end of the second connecting rod (435) is fixedly installed with the universal joint (44) installed on the bottom plate (42).

3. A prefabricated house according to claim 1, characterized in that: The other end of the air guide tube (62) passes through the telescopic piston plate (75) to the interior of the telescopic airbag (73). The air guide tube (62) and the bottom of the telescopic airbag (73) are slidably connected. The air guide tube (62) and the interior of the telescopic airbag (73) are connected. The top of the lower friction plate (77) and the bottom of the upper friction plate (11) are provided with grooves to increase friction.

4. A prefabricated house according to claim 3, characterized in that: The air duct (62) includes a connecting pipe (621), one end of which is fixedly installed to the bottom of the central tube (27), and the other end of which is fixedly installed with an exhaust one-way valve (622) located inside the telescopic airbag (73).

5. A prefabricated house according to claim 1, characterized in that: The number of connecting rods (61) is the same as the number of vertical buffer components (2). Several vertical buffer components (2) are evenly arranged on the top of the base frame (1). The air duct (62) extends through the base frame (1), the connecting rods (61), and the bottom of the fixing component (7) on one side.

6. A prefabricated house according to claim 3, characterized in that: The transmission cylinder (74) and the movable groove (71) are arranged with the same center. The diameter of the lower friction plate (77) is the same as the diameter of the movable groove (71). The height of the lower friction plate (77) is less than the distance from the top of the fixed plate (72) to the top of the movable groove (71).

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