A fabricated frame seismic isolation structure

Abstract

The application provides an assembled frame seismic isolation structure, which comprises a base layer and assembled frames for respectively isolating each group of the assembled frames; and a second buffering mechanism, which is arranged below the assembled frames and extends through to below the base layer to isolate the assembled frames and the base layer. According to the application, the movable rod is affected by the ground, the movable block is driven to move away from the first expansion hole, the arc surface of the movable block and the special-shaped movable part is rubbed and decomposed into the sliding of the expansion cylinder in the through hole and the sliding friction of the rollers between the second connecting plates, the vertical force is decomposed to two sides and reverse force is provided, the vibration force is weakened, the first spring, the second spring and the third spring are cooperated to weaken the vibration force, and the vibration is reduced by decomposing the force to two sides and providing reverse force after the movable block changes the moving direction.

Description

Technical Field

[0001] This invention relates to the field of earthquake-resistant building technology, specifically to a prefabricated frame seismic isolation structure. Background Technology

[0002] Prefabricated frame seismic-resistant structures are a type of building structure designed to provide seismic performance and damping effects. They combine prefabricated construction and seismic isolation technology, using prefabricated frame components and seismic isolation devices to reduce the impact of earthquakes on buildings. These components are processed and assembled in a factory and then transported to the construction site for installation. This prefabricated approach not only improves construction efficiency but also ensures the consistency and controllability of structural quality.

[0003] As prefabricated construction has developed to this point, compared with traditional construction techniques, it not only reduces costs and improves construction efficiency, but also plays a crucial role in post-disaster reconstruction. When temporary shelters are built after an earthquake, a number of earthquake-resistant buildings need to be constructed temporarily, and prefabricated frame earthquake-resistant structures play an important role. However, while prefabricated frame earthquake-resistant structures improve assembly efficiency, their seismic isolation effect is tested, and they cannot provide a good seismic isolation effect for buildings. Therefore, this invention studies and designs a prefabricated frame seismic isolation structure. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the shortcomings of the existing prefabricated frame seismic structure in providing good seismic isolation protection, thereby providing a prefabricated frame seismic isolation structure.

[0005] To address the above problems, the present invention provides a prefabricated frame seismic isolation structure, comprising:

[0006] grassroots level;

[0007] The prefabricated frame is provided with at least two sets above the base layer, and a first buffer mechanism is provided between each set of prefabricated frames to isolate the vibration inside each set of prefabricated frames.

[0008] The second buffer mechanism is provided with at least two sets located below the prefabricated frame and extending through to the base layer to isolate vibration between the prefabricated frame and the base layer;

[0009] The prefabricated frame includes: a single panel, four single panels are provided, one end of the single panel is provided with a first connecting part, the other end of the single panel is provided with a second connecting part, and the four single panels are connected in sequence through the first connecting part and the second connecting part to form a square frame;

[0010] The first connecting portion and the second connecting portion of two adjacent single boards are snapped together;

[0011] The first buffer mechanism includes: an arc-shaped plate and a limiting strip. The arc-shaped plate is disposed on the side of the single plate near the center of the square frame. An arc-shaped sliding hole is provided on the arc-shaped plate, and the center of the arc-shaped sliding hole is located at the center of the square frame.

[0012] At least two limiting strips are provided, and the two ends of the limiting strips are detachably connected to the arc-shaped sliding holes of two adjacent or opposite single plates respectively;

[0013] The second buffer mechanism includes: a housing, the housing being hollow, a first telescopic hole being provided at the bottom of the housing, a movable rod being provided in the first telescopic hole, one end of the movable rod extending and penetrating below the base layer, the other end of the movable rod extending into the housing and connected to a first baffle, the first baffle also being connected to a movable block, irregularly shaped movable parts being provided on both sides of the movable block, a rotating rod being rotatably connected to the end of the irregularly shaped movable part near the first telescopic hole, both ends of the rotating rod being connected to the inner wall of the housing, and an arc-shaped surface being provided on the side of the irregularly shaped movable part near the movable block, the movable block abutting against the two arc-shaped surfaces respectively;

[0014] The movable rod is provided with a second stop near the first telescopic hole. The movable rod and the second stop are slidably connected. The second stop is connected to the housing. A first spring is provided between the first stop and the second stop.

[0015] Preferably, the two ends of the limiting strip are respectively provided with a first screw hole and a limiting screw, a first nut is provided on the limiting screw, the limiting screw is screwed to the first nut, one end of the limiting screw abuts against the arc plate, and the other end of the limiting screw passes through the first screw hole and the arc sliding hole so that the first nut abuts against the arc plate.

[0016] Preferably, a telescopic cylinder is provided on the side of the irregularly shaped movable component away from the movable block. One end of the telescopic cylinder is rotatably connected to the middle of the irregularly shaped movable component. Through holes adapted to the telescopic cylinder are provided on both sides of the housing. The telescopic cylinder is slidably connected to the through holes. A third stop is provided on the end of the telescopic cylinder near the irregularly shaped movable component. A second spring is sleeved on the telescopic cylinder. The two ends of the second spring abut against the side wall of the housing and the third stop, respectively.

[0017] Preferably, a pair of first connecting plates are provided on the side of the movable block away from the movable rod. One end of the first connecting plate is connected to the movable block, and the other end of the first connecting plate is rotatably connected to a roller. The top of the housing is provided with second connecting plates on both sides of the roller. The roller and the pair of second connecting plates are interference-fitted. The second connecting plates are provided with multiple protrusions near the roller, and the roller is slidably connected to the protrusions.

[0018] The second connecting plate is also provided with an arc-shaped limiting member at one end near the movable block. The shortest gap between the two arc-shaped limiting members is less than the radial dimension of the roller. A third spring is also sleeved on the outside of the pair of second connecting plates. The two ends of the third spring abut against the movable block and the arc-shaped limiting member, respectively.

[0019] Preferably, a pair of third connecting plates are provided inside the housing near the first telescopic hole. The pair of third connecting plates are provided with second screw holes. The second stop is provided with a through hole corresponding to the second screw hole. An adjusting screw is provided between the third connecting plate and the second stop. The adjusting screw passes through the through hole and is screwed to the second screw hole. The stop of the adjusting screw abuts against the second stop. A second nut is also screwed onto the adjusting screw. The second nut abuts against the third connecting plate.

[0020] Preferably, a protective shell is also provided outside the housing. The protective shell is hollow and is fitted over the housing. A gap is provided between the two side walls of the housing where the telescopic cylinder is located and the corresponding two side walls of the protective shell. A second telescopic hole is provided at the bottom of the protective shell. The end of the movable rod away from the movable block extends through the second telescopic hole. The edge of the second telescopic hole abuts against the side of the second stop near the movable block.

[0021] The front and rear outer walls of the housing are provided with sliding grooves along the height direction of the housing, and the two inner walls of the protective housing are provided with sliding strips adapted to the sliding grooves, and the sliding strips are slidably connected to the sliding grooves.

[0022] Preferably, the base layer is filled with vibration isolation material, the base layer is provided with assembly holes, the outer wall of the protective shell is connected to the assembly holes, the top of the protective shell is connected to the single plate, and the single plate is separated from the top of the base layer by a gap.

[0023] The prefabricated frame seismic isolation structure provided by this invention has the following beneficial effects:

[0024] 1. This invention uses a base layer set on the surface to be constructed to form an isolation from the ground, thereby isolating some of the vibrations directly from the ground and reducing the impact of vibrations on the building, thus forming a foundation for seismic isolation protection. The base layer is filled with seismic isolation material, which absorbs energy and has a damping effect such as vibration reduction and noise reduction.

[0025] 2. The present invention also adjusts the limiting strip to slide in the arc-shaped sliding holes of different single plates, and then fixes its position so that it fixes the corresponding two single plates. The two limiting strips are respectively set on both sides of the arc-shaped plate, so they will not affect the intersection. After the positions of the limiting strip and the single plate are fixed, the square frame formed by the four single plates can be further fixed by the limiting strip on the base layer where the first connecting part and the second connecting part are snapped together. At the same time, the limiting strip supports it and can provide support when vibration occurs.

[0026] 3. The present invention also utilizes the principle that when subjected to vibration, the movable rod, influenced by the ground, causes the movable block to move away from the first telescopic hole. This causes the movable block and the arc-shaped movable part to rub against each other, decomposing the vertical force into sliding friction between the telescopic cylinder in the through hole and the roller between the second connecting plate. This decomposes the vertical force to both sides and provides a reverse force, thus weakening the vibration force. In conjunction with the action of the first, second, and third springs, the vibration is further weakened. After the movable block changes its direction of movement, it continues to reduce the vibration by decomposing the force to both sides and providing a reverse force. At the same time, the amplitude of the oscillation is weakened, thus protecting the vibration isolation of the prefabricated frame. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the assembly of the present invention;

[0028] Figure 2 This is a schematic diagram of the sectional structure of the base layer of the present invention;

[0029] Figure 3 This is a schematic diagram of the single-plate three-dimensional structure of the present invention;

[0030] Figure 4 This is a schematic diagram of the installation of the protective shell structure of the present invention;

[0031] Figure 5 This is a schematic diagram of the installation of the sliding bar structure of the present invention;

[0032] Figure 6 This is a cross-sectional view of the protective shell structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the internal structure of the housing of the present invention.

[0034] The reference numerals in the attached figures are as follows:

[0035] 1. Base layer; 2. Single board; 3. First connecting part; 4. Second connecting part; 5. Arc-shaped plate; 6. Limiting strip; 7. Arc-shaped sliding hole; 9. Limiting screw; 10. Housing; 11. First telescopic hole; 12. Movable rod; 13. First stop; 14. Movable block; 15. Irregularly shaped moving part; 16. Rotating rod; 17. Arc-shaped surface; 18. Second stop; 19. First spring; 20. Telescopic cylinder; 21. Through hole; 22. Third stop; 23. Second spring; 24. First connecting plate; 25. Roller; 26. Second connecting plate; 27. Protrusion; 28. Arc-shaped limiting part; 29. ​​Third spring; 30. Third connecting plate; 31. Adjusting screw; 32. Protective shell; 33. Second telescopic hole; 34. Sliding groove; 35. Sliding strip; 36. Assembly hole. Detailed Implementation

[0036] like Figure 1-7 As shown, the present invention provides a prefabricated frame seismic isolation structure, which includes:

[0037] Base layer 1; prefabricated frame, with at least two sets disposed above the base layer 1, a first buffer mechanism disposed between each set of prefabricated frames to isolate vibration within each set of prefabricated frames; a second buffer mechanism, with at least two sets disposed below the prefabricated frames and extending through to the base layer 1 to isolate vibration between the prefabricated frames and the base layer 1. Figure 1-7 As shown, a prefabricated frame seismic isolation structure is installed on the construction surface via a base layer 1, forming an isolation with the ground. This isolates some of the vibrations directly from the ground and reduces the impact of vibrations on the building, thus forming a foundation seismic isolation protection. At least two sets of prefabricated frames are installed on the base layer 1, providing support for the building's construction. A first buffer mechanism is installed between each set of prefabricated frames to maintain the stability of the prefabricated frames when they are subjected to vibration, thus providing seismic isolation within each set of prefabricated frames. A second buffer mechanism is installed between the prefabricated frames and the base layer 1. At least two sets of second buffer mechanisms are installed at the bottom of each set of prefabricated frames, with the second buffer mechanisms passing through the base layer 1 and directly contacting the ground to provide seismic isolation between the prefabricated frames and the base layer 1. Through the cooperation of the base layer 1, the first buffer mechanism, and the second buffer mechanism, the building is seismically isolated after being subjected to vibration, reducing the impact of vibrations on the building and improving the seismic isolation effect.

[0038] In some embodiments, the prefabricated frame includes: four single panels 2, one end of each single panel 2 having a first connecting portion 3, and the other end of each single panel 2 having a second connecting portion 4. The four single panels 2 are sequentially connected by the first connecting portion 3 and the second connecting portion 4 to form a square frame; the first connecting portion 3 and the second connecting portion 4 of adjacent single panels 2 are interlocked. Figure 1-7As shown, the prefabricated frame is formed by splicing four single plates 2 in sequence. Adjacent single plates 2 are connected by the first connecting part 3 and the second connecting part 4 to form an assembly. The four single plates 2 form a square frame, which is convenient for assembly. In the early processing, the first connecting part 3 and the second connecting part 4 of each single plate 2 are processed according to the same size, so that the first connecting part 3 and the second connecting part 4 of adjacent single plates 2 can be easily connected. The first connecting part 3 and the second connecting part 4 can be one of the T-shape, L-shape and isosceles trapezoid that cooperate with each other.

[0039] In some embodiments, the first buffer mechanism includes: an arc-shaped plate 5 and a limiting strip 6. The arc-shaped plate 5 is disposed on the side of the single plate 2 near the center of the square frame. The arc-shaped plate 5 is provided with an arc-shaped sliding hole 7, the center of which is located at the center of the square frame. At least two limiting strips 6 are provided, and the two ends of the limiting strip 6 are detachably connected to the arc-shaped sliding holes 7 of two adjacent or opposite single plates 2, respectively. Figure 1-7 As shown, the arc-shaped plate 5 of the first buffer mechanism is set inside the square frame. The center of the arc-shaped sliding hole 7 on the arc-shaped plate 5 is the center of the square frame. The two ends of the limiting strip 6 are detachably connected in the arc-shaped sliding hole 7 of two adjacent or opposite single plates 2. By adjusting the limiting strip 6 to slide in the arc-shaped sliding hole of different single plates 2, and then fixing its position, it fixes the corresponding two single plates 2. The two limiting strips 6 are respectively set on both sides of the arc-shaped plate 5, so they will not affect the intersection. After the positions of the limiting strip 6 and the single plate 2 are fixed, the square frame formed by the four single plates 2 is further fixed by the limiting strip 6 on the base layer 1 where the first connecting part 3 and the second connecting part 4 are engaged. At the same time, the limiting strip 6 supports it and can provide support when vibration occurs. The setting of the arc-shaped sliding hole 7 makes it easy to adjust the position of the limiting strip 6 and the arc-shaped hole detachably connected between the two single plates 2 when the length of the limiting strip 6 is fixed.

[0040] In some embodiments, the limiting strip 6 has a first screw hole and a limiting screw 9 at both ends, respectively. A first nut is provided on the limiting screw 9, and the limiting screw 9 is screwed to the first nut. One end of the limiting screw 9 abuts against the arc-shaped plate 5, and the other end of the limiting screw 9 passes through the first screw hole and the arc-shaped sliding hole 7, causing the first nut to abut against the arc-shaped plate 5. For example... Figure 1-7 As shown, the two ends of the limiting strip 6 and the arc-shaped sliding hole 7 are connected by the limiting screw 9, and then fixed by the limiting screw 9 and the first nut. When adjustment is needed, it can be adjusted. During assembly, the first nut and the limiting screw 9 are connected to each other.

[0041] In some embodiments, the second buffer mechanism includes: a housing 10, the housing 10 being hollow, a first telescopic hole 11 being provided at the bottom of the housing 10, a movable rod 12 being provided within the first telescopic hole 11, one end of the movable rod 12 extending through to below the base layer 1, the other end of the movable rod 12 extending into the housing 10 and connected to a first baffle 13, the first baffle 13 also being connected to a movable block 14, and irregularly shaped movable parts 15 being provided on both sides of the movable block 14, the irregularly shaped movable parts 15 being close to the first telescopic hole 11. One end of hole 11 is rotatably connected to a rotating rod 16, and both ends of the rotating rod 16 are connected to the inner wall of the housing 10. The irregularly shaped movable part 15 has an arc-shaped surface 17 on the side near the movable block 14, and the movable block 14 abuts against the two arc-shaped surfaces 17 respectively. The movable rod 12 has a second stop 18 near the first telescopic hole 11, and the movable rod 12 and the second stop 18 are slidably connected. The second stop 18 is connected to the housing 10, and a first spring 19 is provided between the first stop 13 and the second stop 18. Figure 1-7 As shown, in the second buffer mechanism, when the movable rod 12 is subjected to ground vibration, it slides between the movable rod 12 and the second stop 18, causing the movable rod 12 to slide upward relative to the second stop 18. This drives the movable block 14 to transmit the force to the arc surface 17 of the irregularly shaped movable part 15. Since the irregularly shaped movable part 15 is rotatably connected to the housing 10 through the rotating rod 16, the movable block 14 pushes the irregularly shaped movable part 15 to rotate around the rotating rod 16 in a direction away from the movable rod 12 as it continues to move upward against the arc surface 17. This partially decomposes the force transmitted from the movable block 14 to the irregularly shaped movable part 15, and cancels it out through the action of the irregularly shaped movable part 15. When the movable block 14 stops moving away from the first telescopic hole 11, the first spring 19 is stretched, and this process requires the restoration of deformation. At this time, the friction between the movable block 14 and the irregularly shaped movable part 15 again cancels out part of the influence of the up-and-down vibration of the movable block 14.

[0042] In some embodiments, a telescopic cylinder 20 is provided on the side of the irregularly shaped movable component 15 away from the movable block 14. One end of the telescopic cylinder 20 is rotatably connected to the middle of the irregularly shaped movable component 15. Through holes 21 adapted to the telescopic cylinder 20 are provided on both sides of the housing 10. The telescopic cylinder 20 is slidably connected to the through holes 21. A third stop 22 is provided on the end of the telescopic cylinder 20 near the irregularly shaped movable component 15. A second spring 23 is sleeved on the telescopic cylinder 20, and the two ends of the second spring 23 abut against the side wall of the housing 10 and the third stop 22, respectively. Figure 1-7As shown, telescopic cylinders 20 are respectively provided on the side of the irregularly shaped movable part 15 away from the movable block 14. The telescopic cylinders 20 slide within the through hole 21 of the housing 10. When the movable block 14 is vibrated, during the process of moving away from the first telescopic hole 11, it drives the irregularly shaped movable part 15 to rotate about the rotating rod 16 in a direction away from the movable rod 12. At this time, since the telescopic cylinders 20 and the irregularly shaped movable part 15 are rotatably connected at the middle, the telescopic cylinders 20 are pushed to move in the through hole 21 towards the side away from the movable block 14. At this time, the second spring 23 is compressed. The force exerted by the movable rod 12 on the movable block 14 is decomposed to both sides and transmitted to the second spring 23, which buffers it. When the movable block 14 stops moving and moves toward the first telescopic hole 11, the second spring 23 restores its deformation, and the telescopic cylinder 20 moves toward the movable block 14 in the through hole 21. The irregularly shaped movable part 15 and the movable block 14 come into contact again, forming friction. Through the back-and-forth friction between the movable block 14 and the irregularly shaped movable part 15, in conjunction with the first spring 19 and the second springs 23 on both sides, the vibration is weakened or even eliminated.

[0043] In some embodiments, a pair of first connecting plates 24 are provided on the side of the movable block 14 away from the movable rod 12. One end of the first connecting plate 24 is connected to the movable block 14, and the other end of the first connecting plate 24 is rotatably connected to a roller 25. Second connecting plates 26 are respectively provided on the top of the housing 10 on both sides of the roller 25. The roller 25 and the pair of second connecting plates 26 are interference-fitted. Multiple protrusions 27 are provided on the second connecting plates 26 near the roller 25, and the roller 25 is slidably connected to the protrusions 27. An arc-shaped limiting member 28 is also provided on the end of the second connecting plate 26 near the movable block 14. The shortest gap between the two arc-shaped limiting members 28 is smaller than the radial dimension of the roller 25. A third spring 29 is also sleeved on the pair of second connecting plates 26, and the two ends of the third spring 29 abut against the movable block 14 and the arc-shaped limiting member 28, respectively. Figure 1-7As shown, when the movable block 14 moves away from the first telescopic hole 11, the roller 25 connected to the first connecting plate 24 slides between the second connecting plate 26, eliminating part of the force through sliding friction. At the same time, the protrusion 27 on the second connecting plate 26 further restricts the roller 25. After the movable block 14 is subjected to force, the roller 25 rubs against the protrusion 27 to eliminate part of the force. When the movable block 14 stops and begins to move towards the first telescopic hole 11, the second connecting plate 26 and the protrusion 27 continue to slide against the roller 25, further weakening the influence of the force and preventing oscillation throughout the process. Meanwhile, the arc-shaped limiting member 28 restricts the roller 25 to prevent it from escaping the restraint of the second connecting plate 26. The third spring 29, which is set on the arc-shaped limiting member 28 and the movable block 14, buffers the movable block 14 during its reciprocating motion and helps the movable block 14 to reset.

[0044] Specifically, when subjected to vibration, the movable rod 12 is affected by the ground, causing the movable block 14 to move away from the first telescopic hole 11. This causes the movable block 14 to rub against the arc-shaped surface 17 of the irregular movable part 15 and decompose it into the sliding friction of the telescopic cylinder 20 in the through hole 21 and the sliding friction of the roller 25 between the second connecting plate 26. This decomposes the vertical force to both sides and provides a reverse force, thus weakening the vibration force it receives. In conjunction with the action of the first spring 19, the second spring 23 and the third spring 29, the vibration is weakened. After the movable block 14 changes its direction of movement, it continues to reduce the vibration by decomposing the force to both sides and providing a reverse force. At the same time, the amplitude of the oscillation is weakened, thus protecting the vibration of the prefabricated frame.

[0045] In some embodiments, a pair of third connecting plates 30 are disposed inside the housing 10 near the first telescopic hole 11. The pair of third connecting plates 30 are provided with second screw holes. The second flange 18 is provided with a through hole corresponding to the second screw hole. An adjusting screw 31 is disposed between the third connecting plate and the second flange 18. The adjusting screw 31 passes through the through hole and is screwed into the second screw hole. The flange of the adjusting screw 31 abuts against the second flange 18. A second nut is also screwed onto the adjusting screw 31, and the second nut abuts against the third connecting plate 30. For example... Figure 1-7 As shown, the distance between the second stop 18 and the first stop 13 is adjusted by adjusting the screw 31 and the second nut, so as to adjust the amount of compression of the first spring 19 and adjust the initial elastic force of the first spring 19.

[0046] In some embodiments, a protective shell 32 is further provided outside the housing 10. The protective shell 32 is hollow and is fitted over the housing 10. A gap is provided between the two side walls of the housing 10 where the telescopic cylinder 20 is located and the corresponding two side walls of the protective shell 32. A second telescopic hole 33 is provided at the bottom of the protective shell 32. The end of the movable rod 12 away from the movable block 14 extends through the second telescopic hole 33. The edge of the second telescopic hole 33 abuts against the side of the second stop 18 near the movable block 14. Sliding grooves 34 are provided on the front and rear outer walls of the housing 10 along the height direction of the housing 10. Sliding strips 35 adapted to the sliding grooves 34 are provided on the two inner walls of the protective shell 32. The sliding strips 35 are slidably connected to the sliding grooves 34. Figure 1-7 As shown, when adjusting the relative distance between the second stop 18 and the first stop 13 by adjusting the screw 31, the sliding bar 35 and the sliding groove 34 cooperate to ensure that the edge of the adjusted second telescopic hole 33 can continue to rest on the second stop 18, thus protecting the interior of the protective shell 32. Only the movable rod 12 extends out of the second telescopic hole 33 and makes contact with the base layer 1. At the same time, a gap is provided between the two side walls of the shell 10 where the telescopic cylinder 20 is located and the corresponding two side walls of the protective shell 32 to allow sufficient room for the movement of the telescopic cylinder 20. A gap is also provided between the top of the shell 10 and the top of the protective shell 32 to facilitate the adjustment of the relative distance between the second stop 18 and the first stop 13 by adjusting the screw 31. The protective shell 32 protects the interior shell 10.

[0047] In some embodiments, the base layer 1 is filled with vibration-damping material, the base layer 1 is provided with mounting holes 36, the outer wall of the protective shell 32 is connected to the mounting holes 36, the top of the protective shell 32 is connected to the single plate 2, and a gap is provided between the single plate 2 and the top of the base layer 1. Figure 1-7 As shown, the base layer 1 is filled with vibration isolation material, which can be aluminum foam, magnesium foam, or damping copper alloy, etc., to absorb energy and have damping effects such as vibration reduction and noise reduction. The base layer 1 has pre-reserved mounting holes 36 for the protective shell 32 to connect the protective shell 32 and the base layer 1. The connection can be in the form of snap-fit, screw-fit, or adhesive. The single plate 2 is connected to the top of the protective shell 32. The connection can also be in the form of snap-fit, screw-fit, or adhesive. The single plate 2 is separated from the top of the base layer 1 to allow for adjustment between the prefabricated frame and the base layer 1, so that it can be adjusted after vibration.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention. The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the protection scope of the present invention.

Claims

1. A prefabricated frame seismic isolation structure, characterized in that, include: grassroots level; The prefabricated frame is provided with at least two sets above the base layer, and a first buffer mechanism is provided between each set of prefabricated frames to isolate the vibration inside each set of prefabricated frames. The second buffer mechanism is provided with at least two sets located below the prefabricated frame and extending through to the base layer to isolate vibration between the prefabricated frame and the base layer; The prefabricated frame includes: a single panel, four single panels are provided, one end of the single panel is provided with a first connecting part, the other end of the single panel is provided with a second connecting part, and the four single panels are connected to each other in sequence through the first connecting part and the second connecting part to form a square frame; The first connecting portion and the second connecting portion of two adjacent single boards are snapped together; The first buffer mechanism includes: an arc-shaped plate and a limiting strip. The arc-shaped plate is disposed on the side of the single plate near the center of the square frame. An arc-shaped sliding hole is provided on the arc-shaped plate, and the center of the arc-shaped sliding hole is located at the center of the square frame. At least two limiting strips are provided, and the two ends of the limiting strips are detachably connected to the arc-shaped sliding holes of two adjacent or opposite single plates respectively; The second buffer mechanism includes: a housing, the housing being hollow, a first telescopic hole being provided at the bottom of the housing, a movable rod being provided in the first telescopic hole, one end of the movable rod extending and penetrating below the base layer, the other end of the movable rod extending into the housing and connected to a first baffle, the first baffle also being connected to a movable block, irregularly shaped movable parts being provided on both sides of the movable block, a rotating rod being rotatably connected to the end of the irregularly shaped movable part near the first telescopic hole, both ends of the rotating rod being connected to the inner wall of the housing, and an arc-shaped surface being provided on the side of the irregularly shaped movable part near the movable block, the movable block abutting against the two arc-shaped surfaces respectively; The movable rod is provided with a second stop near the first telescopic hole. The movable rod and the second stop are slidably connected. The second stop is connected to the housing. A first spring is provided between the first stop and the second stop.

2. The prefabricated frame seismic isolation structure according to claim 1, characterized in that: The limiting strip has a first screw hole and a limiting screw at each end. A first nut is provided on the limiting screw. The limiting screw is screwed to the first nut. One end of the limiting screw abuts against the arc-shaped plate. The other end of the limiting screw passes through the first screw hole and the arc-shaped sliding hole so that the first nut abuts against the arc-shaped plate.

3. The prefabricated frame seismic isolation structure according to claim 1, characterized in that: The irregularly shaped movable component is provided with a telescopic cylinder on the side away from the movable block. One end of the telescopic cylinder is rotatably connected to the middle of the irregularly shaped movable component. The two sides of the housing are respectively provided with through holes adapted to the telescopic cylinder. The telescopic cylinder is slidably connected to the through holes. The end of the telescopic cylinder near the irregularly shaped movable component is provided with a third stop. A second spring is respectively sleeved on the telescopic cylinder. The two ends of the second spring abut against the side wall of the housing and the third stop, respectively.

4. The prefabricated frame seismic isolation structure according to claim 3, characterized in that: A pair of first connecting plates are provided on the side of the movable block away from the movable rod. One end of the first connecting plate is connected to the movable block, and the other end of the first connecting plate is rotatably connected to a roller. The top of the housing is provided with second connecting plates on both sides of the roller. The roller and the pair of second connecting plates are interference-fitted. The second connecting plates are provided with multiple protrusions near the roller, and the roller is slidably connected to the protrusions. The second connecting plate is also provided with an arc-shaped limiting member at one end near the movable block. The shortest gap between the two arc-shaped limiting members is less than the radial dimension of the roller. A third spring is also sleeved on the outside of the pair of second connecting plates. The two ends of the third spring abut against the movable block and the arc-shaped limiting member, respectively.

5. The prefabricated frame seismic isolation structure according to claim 1, characterized in that: A pair of third connecting plates are provided inside the housing near the first telescopic hole. The pair of third connecting plates are provided with second screw holes. The second stop is provided with a through hole corresponding to the second screw hole. An adjusting screw is provided between the third connecting plate and the second stop. The adjusting screw passes through the through hole and is screwed to the second screw hole. The stop of the adjusting screw abuts against the second stop. A second nut is also screwed onto the adjusting screw. The second nut abuts against the third connecting plate.

6. The prefabricated frame seismic isolation structure according to claim 3, characterized in that: A protective shell is also provided outside the housing. The protective shell is hollow and is fitted over the housing. There is a gap between the two side walls of the housing where the telescopic cylinder is located and the corresponding two side walls of the protective shell. A second telescopic hole is provided at the bottom of the protective shell. The end of the movable rod away from the movable block extends through the second telescopic hole. The edge of the second telescopic hole abuts against the side of the second stop near the movable block. The front and rear outer walls of the housing are provided with sliding grooves along the height direction of the housing, and the two inner walls of the protective housing are provided with sliding strips adapted to the sliding grooves, and the sliding strips are slidably connected to the sliding grooves.

7. The prefabricated frame seismic isolation structure according to claim 6, characterized in that: The base layer is filled with vibration isolation material, and the base layer is provided with assembly holes. The outer wall of the protective shell is connected to the assembly holes, the top of the protective shell is connected to the single plate, and a gap is provided between the single plate and the top of the base layer.

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