Five-layer hyperbolic track seismic isolation platform

Abstract

The invention discloses a five-layer hyperbolic track seismic isolation platform which comprises a bottom plate, a roller layer, a middle plate and a top plate which are stacked together in parallel. Two parallel first curve rails are symmetrically arranged on the top surface of the bottom plate, two parallel third curve rails are arranged on the bottom surface of the middle plate, and one roller layer is in rolling contact between the first curve rail and the third curve rail which are oppositely arranged; cultural relics are placed on the top surface of the top plate, two parallel fourth curve rails are symmetrically arranged on the bottom surface of the top plate, two parallel second curve rails are arranged on the top surface of the middle plate, and the other roller layer is in rolling contact between the second curve rail and the fourth curve rail which are oppositely arranged; and the fourth curve rail is perpendicular to the first curve rail. According to the five-layer hyperbolic curve rail seismic isolation platform, seismic isolation is carried out through the five-layer plate-shaped stacked structure, and the roller layer is clamped by the two oppositely-arranged curve rails, so that relics can be smoothly reset by effectively utilizing the dead weight of the relics.

Description

Technical Field

[0001] The invention relates to the field of earthquake-proof technology, and in particular to a five-layer hyperbolic track earthquake-isolating platform. Background Art

[0002] The existing cultural relic anti-seismic device is a device installed at the bottom of cultural relics or cultural relic display cabinets, which effectively absorbs seismic waves under the action of earthquakes, thereby isolating seismic waves and protecting cultural relics. The two-dimensional anti-seismic platform is a floating plate on the upper part that can slide horizontally. When the earthquake only shakes in the horizontal direction, it can achieve an anti-seismic effect. A universal sliding device is installed between the two flat plates of the anti-seismic platform. The lower base plate is fixed in the display cabinet, and the upper floating plate can slide back and forth and left and right with the shaking of the earthquake, so as to prevent the cultural relics or precision instruments placed on the floating plate from tipping over or sliding.

[0003] The utility model patent with patent publication number CN214364094U is the applicant's prior patent application, which discloses a hyperbolic isolation reduction platform. In the patented technical solution, the curved protrusions at the upper and lower ends of the support column are in contact with the lower curved groove and the upper curved groove respectively, so as to achieve hyperbolic contact, increase the area of ​​the contact point, and change the rolling friction into sliding friction, which increases the resistance to relative motion, avoids the floating plate carrying the exhibited cultural relics from shaking due to accidental collision or vibration, and ensures that the exhibited cultural relics present a stable visual perception. However, in the patented technical solution, the horizontal movement of the floating plate during an earthquake cannot effectively drive the support frame to move, so the actual damping effect of the hyperbolic surface is not ideal, and the point contact sliding friction is also prone to wear and scratches due to the large friction resistance, and the reset is not smooth.

[0004] Therefore, it is necessary to develop a five-layer hyperbolic track seismic isolation platform to address the above defects. Summary of the invention

[0005] The purpose of the present invention is to provide a five-layer hyperbolic rail seismic isolation platform, which is seismic isolated by a five-layer plate-like stacked structure, and the roller layer is clamped by two oppositely arranged curved rails, which can effectively utilize the dead weight of cultural relics to smoothly reset.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] The invention discloses a five-layer hyperbolic track seismic isolation platform, comprising a bottom plate, a roller layer, a middle plate and a top plate stacked in parallel;

[0008] Two parallel first curved rails are symmetrically arranged on the top surface of the bottom plate, two parallel third curved rails are arranged on the bottom surface of the middle plate, and one of the roller layers rolls in contact between the first curved rail and the third curved rail that are arranged opposite to each other;

[0009] Cultural relics are placed on the top surface of the top plate, two parallel fourth curved rails are symmetrically arranged on the bottom surface of the top plate, two parallel second curved rails are arranged on the top surface of the middle plate, and the other roller layer rolls and contacts between the second curved rail and the fourth curved rail which are arranged oppositely; the fourth curved rail is arranged perpendicular to the direction of the first curved rail.

[0010] Furthermore, the rolling contact surface between the first curved rail and the roller layer is two identical concave arc rail surfaces, and the shape structures of the second curved rail, the third curved rail and the fourth curved rail are consistent with the first curved rail.

[0011] Furthermore, the roller layer includes a square frame and a roller assembly, and four roller assemblies are symmetrically installed on the outer side of the wide side of the square frame; the roller assembly is in rolling contact with the bottom plate, the middle plate and / or the top plate.

[0012] Furthermore, the roller assembly includes a roller mounting shaft, an inner roller and an outer roller. The root of the roller mounting shaft is fixedly connected to the horizontal side of the square frame. The inner roller and outer roller of the same specification are coaxially assembled on the cantilever end of the roller mounting shaft; the inner roller rolls in contact with the inner curved rail, and the outer roller rolls in contact with the outer curved rail.

[0013] Furthermore, it also includes a guide and limit assembly, which is arranged on the upper and lower sides of the roller layer to play a role in sliding guidance and anti-slipping.

[0014] Furthermore, eight sets of the guide limit assemblies are arranged on each roller layer, four sets are used to prevent separation from the lower components, and the other four sets are used to prevent separation from the upper components.

[0015] Furthermore, the guide limit assembly includes a slider and a limit screw, and the bottom plate, the middle plate and the top plate are all provided with linear guide rails on the side facing the roller layer, and the linear guide rails are parallel to the curved rails of the same mounting surface; a limit plate is provided on the frame of the roller layer, and a through hole is vertically opened at the cantilever end of the limit plate; the slider is slidably connected to the linear guide rail, the limit screw is threadedly connected to the far end of the slider, and the light column segment of the limit screw guides through the through hole of the limit plate.

[0016] Furthermore, it also includes a limit block, which is arranged in the center of the bottom plate, the middle plate and the top plate on one side facing the roller layer. The limit block limits the frame of the roller layer internally to prevent it from excessive displacement and escape.

[0017] Compared with the prior art, the five-layer hyperbolic track seismic isolation platform of the present invention has the following beneficial effects:

[0018] The five-layer hyperbolic rail seismic isolation platform of the present invention is achieved by stacking together five-layer plate-like structures of a bottom plate, a roller layer, an intermediate plate and a top plate. The layers are guided and slid one-way between each other. After the two vertical directions are combined, the horizontal movement amplitude of the top plate in any direction can be reduced, and the earthquake waves with horizontal amplitude can be buffered to protect the cultural relics. The roller layer is clamped by paired curved rails, and the cultural relics can be reset by their own weight while also obtaining a larger eccentric displacement, meeting the requirements of seismic isolation work with a larger amplitude. The five-layer hyperbolic rail seismic isolation platform of the present invention is seismically isolated by a five-layer plate-like stacked structure. The roller layer is clamped by two relatively arranged curved rails, and the cultural relics can be reset smoothly by their own weight.

[0019] In addition, two identical concave arc rail surfaces are connected together to synchronously support the two roller assemblies on the same side, so that the horizontal parallel relationship between the spacer plate structures is always maintained; four roller assemblies are arranged between two adjacent layer plate structures to ensure structural stability; the inner roller and the outer roller rotate concentrically and asynchronously during rolling, so that the upper and lower concave arc rail surfaces sandwich the roller assemblies so that the rolling is independent and does not interfere with each other. The guide limit assembly is added to the upper and lower sides of the roller layer to play the role of sliding guidance and anti-slipping with the curved rail; the linear guide is used for guidance to prevent the concave arc rail surface and the roller assembly from being dislocated; the light column section of the limit screw and the through hole of the limit plate are used for vertical guidance and limitation to prevent overturning between the layer plate structures. The addition of the limit block can prevent the roller layer from slipping out of the curved rail when it is excessively displaced, and at the same time ensure that the upper and lower curved rails can roll the roller assembly relative to each other. The limit block is made of rubber blocks, which can buffer the roller layer frame in extreme cases to prevent hard impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the five-layer hyperbolic track seismic isolation platform of the present invention;

[0022] Figure 2 This is a schematic diagram of the main structure of the five-layer hyperbolic track seismic isolation platform of the present invention;

[0023] Figure 3 It is a right side cross-sectional structural schematic diagram of a five-layer hyperbolic track seismic isolation platform of the present invention;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom plate of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the roller layer in the present invention;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the middle plate in the present invention;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the top plate in the present invention;

[0028] Figure 8 for Figure 3 Schematic diagram of the local enlarged structure of part I in the middle.

[0029] Explanation of the accompanying drawings: 1. bottom plate; 101. first linear guide rail; 102. first curved rail; 103. first limit block; 2. slider; 3. limit screw; 4. roller layer; 401. roller mounting shaft; 402. inner roller; 403. outer roller; 404. outer limit plate; 405. inner limit plate; 5. middle plate; 501. second linear guide rail; 502. second curved rail; 503. third curved rail; 504. third linear guide rail; 505. second limit block; 6. top plate; 601. fourth linear guide rail; 602. fourth curved rail; 603. third limit block. DETAILED DESCRIPTION

[0030] The core of the present invention is to provide a five-layer hyperbolic rail seismic isolation platform, which is seismically isolated through a five-layer plate-like stacked structure. The roller layer is clamped by two relatively arranged curved rails, which can effectively utilize the deadweight of the cultural relics to smoothly reset.

[0031] 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. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the 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.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] With reference to the accompanying drawings, Figure 1 It is a schematic diagram of the three-dimensional structure of the five-layer hyperbolic track seismic isolation platform of the present invention; Figure 2 This is a schematic diagram of the main structure of the five-layer hyperbolic track seismic isolation platform of the present invention; Figure 3 It is a right side cross-sectional structural schematic diagram of a five-layer hyperbolic track seismic isolation platform of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the bottom plate of the present invention;

[0034] Figure 5 It is a schematic diagram of the three-dimensional structure of the roller layer in the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the middle plate in the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the top plate in the present invention; Figure 8 for Figure 3 Schematic diagram of the local enlarged structure of part I in the middle.

[0035] In a specific embodiment, Figures 1 to 8 As shown, the five-layer hyperbolic track seismic isolation platform of the present invention comprises a bottom plate 1, a roller layer 4, a middle plate 5 and a top plate 6 which are stacked together horizontally and in parallel, wherein the number of the roller layers 4 is two.

[0036] Two parallel first curved rails 102 are symmetrically arranged on the top surface of the bottom plate 1, and two parallel third curved rails 503 are arranged on the bottom surface of the middle plate 5. The first curved rail 102 and the third curved rail 503 are arranged in parallel and the first curved rail 102 and the third curved rail 503 on the same side are arranged in pairs. A roller layer 4 rolls and contacts between the first curved rail 102 and the third curved rail 503 arranged in pairs.

[0037] Cultural relics are placed on the top surface of the top plate 6, and threaded holes for fixing cultural relics are provided. Two parallel fourth curved rails 602 are symmetrically arranged on the bottom surface of the top plate 6, and two parallel second curved rails 502 are arranged on the top surface of the middle plate 5. The fourth curved rail 602 and the second curved rail 502 are arranged in parallel, and the fourth curved rail 602 and the second curved rail 502 on the same side are arranged in pairs. Another roller layer 4 rolls and contacts between the second curved rail 502 and the fourth curved rail 602 that are arranged oppositely. The fourth curved rail 602 is arranged perpendicular to the direction of the first curved rail 102, that is, the two roller layers 4 are arranged perpendicularly, the bottom roller layer 4 guides the rolling in the X-axis direction, and the top roller layer 4 guides the rolling in the Y-axis direction.

[0038] The five-layer plate structure of the bottom plate 1, the roller layer 4, the middle plate 5 and the top plate 6 are stacked together, and the layers are guided and slid in one direction. After the two vertical directions are combined, the horizontal movement amplitude of the top plate 6 can be reduced, and the earthquake waves with horizontal amplitude can be buffered to protect the cultural relics. The roller layer 4 is clamped by a pair of curved rails, and the cultural relics can be reset by their own weight while also obtaining a large eccentric displacement, meeting the requirements of seismic isolation work with a large amplitude. The five-layer hyperbolic rail seismic isolation platform of the present invention is seismically isolated by a five-layer plate-like stacked structure, and the roller layer is clamped by two relatively arranged curved rails, which can effectively use the cultural relics' own weight to reset smoothly.

[0039] In a specific embodiment of the present invention, Figure 3 and Figure 4As shown, the rolling contact surface between the first curved rail 102 and the roller layer 4 is two identical concave arc rail surfaces, and the two concave arc rail surfaces are connected together. Similarly, the shapes and structures of the second curved rail 502, the third curved rail 503 and the fourth curved rail 602 are consistent with the first curved rail 102.

[0040] Obviously, the above-mentioned curved rail can also adopt a longer concave arc rail surface, in which case the arc surface diameter of the concave arc rail surface needs to be increased.

[0041] Specifically, the roller layer 4 includes a square frame and a roller assembly, and four roller assemblies are symmetrically mounted on the outer side of the wide side of the square frame. The square frame is a frame member assembled using bolts. The roller assembly is in rolling contact with the bottom plate 1, the middle plate 5 and / or the top plate 6, that is, the roller assembly is in rolling contact between the paired curved rails, and one roller assembly is placed on one concave curved rail surface.

[0042] Specifically, if Figure 5 and Figure 8 As shown, the roller assembly includes a roller mounting shaft 401, an inner roller 402 and an outer roller 403. The root of the roller mounting shaft 401 is set as a screw and is locked on the horizontal side of the square frame by a nut. The inner roller 402 and the outer roller 403 of the same specification are coaxially assembled on the cantilever end of the roller mounting shaft 401. The inner roller 402 rolls in contact with the inner curved rail, and the outer roller 403 rolls in contact with the outer curved rail, that is, the inner roller 402 and the outer roller 403 roll in contact with the inner curved rail, that is, the inner roller 402 and the outer roller 403 rotate concentrically and asynchronously when rolling.

[0043] Two identical sections of the concave arc rail surfaces are connected together to synchronously support the two roller assemblies on the same side, so that the horizontal parallel relationship between the spacer plate structures is always maintained; four roller assemblies are arranged between two adjacent plate structures to ensure structural stability; the inner roller 402 and the outer roller 403 rotate concentrically and asynchronously during rolling, so that the roller assemblies are sandwiched between the upper and lower concave arc rail surfaces so that the rolling is independent and does not interfere with each other.

[0044] In a specific embodiment of the present invention, Figures 1 to 8 As shown, the five-layer hyperbolic track seismic isolation platform of the present invention further includes a guide limit assembly, which is arranged on the upper and lower sides of the roller layer 4 to play the role of sliding guidance and anti-slip.

[0045] Specifically, if Figures 1 to 8 As shown, eight sets of the guide limit assemblies are arranged on each roller layer 4, four sets are used to prevent separation from the lower components, and the other four sets are used to prevent separation from the upper components.

[0046] Specifically, if Figures 1 to 8As shown, the guide limit assembly includes a slider 2 and a limit screw 3, and the limit screw 3 includes a coaxially arranged nut, a light column section and a screw section. The bottom plate 1, the middle plate 5 and the top plate 6 are all provided with linear guide rails on the side facing the roller layer 4, and the linear guide rails are parallel to the curved rails on the same mounting surface. A limit plate is provided on the frame of the roller layer 4, and a through hole is vertically opened at the cantilever end of the limit plate. The slider 2 is slidably connected to the linear guide rail, and the screw section of the limit screw 3 is threadedly connected to the distal end of the slider 2, and the light column section of the limit screw 3 is guided through the through hole of the limit plate.

[0047] Specifically, if Figure 5 As shown, the limiting plates include four inner limiting plates 405 arranged inside the square frame of the roller layer 4 and four outer limiting plates 404 arranged outside. The inner limiting plates 405 and the outer limiting plates 404 are symmetrically arranged about the central axis of the roller layer 4.

[0048] Specifically, if Figure 4 , Figure 6 and Figure 7 As shown, the linear guide includes a first linear guide 101, a second linear guide 501, a third linear guide 504 and a fourth linear guide 601. The two first linear guides 101 are fixed on the top surface of the bottom plate 1 by screws and are parallel to the first curved rail 102. The second linear guide 501 and the third linear guide 504 are respectively arranged on the bottom surface and the top surface of the middle plate 5, and the second linear guide 501 and the third linear guide 504 are arranged vertically. The two fourth linear guides 601 are fixed on the bottom surface of the top plate 6 by screws and are parallel to the fourth curved rail 602.

[0049] Obviously, the guide limit assembly can also adopt the matching mode of the guide rod, the guide sleeve and the limit screw 3, and the arrangement structure is consistent with the above-mentioned linear guide rail, but the guide rod has lower strength and worse stability. Similar simple replacement methods all fall within the protection scope of the present invention.

[0050] By adding the guide and limit assembly on the upper and lower sides of the roller layer 4, it cooperates with the curved rail to provide sliding guidance and prevent disengagement; the linear guide rail is used for guidance to prevent the concave arc rail surface and the roller assembly from being dislocated and detached; the light column segment of the limit screw 3 and the through hole of the limit plate are used for vertical guidance and limitation to avoid overturning between the layer plate structures.

[0051] In a specific embodiment of the present invention, Figure 4 , Figure 6 and Figure 7 As shown, the five-layer hyperbolic track seismic isolation platform of the present invention also includes a limit block, which is arranged in the center of the bottom plate 1, the middle plate 5 and the top plate 6 facing the roller layer 4. The limit block internally limits the frame of the roller layer 4 to prevent it from excessive displacement and escape.

[0052] Specifically, the limit block is made of rubber block material. The limit block includes a first limit block 103, a second limit block 504 and a third limit block 603. The first limit block 103 is installed at the center of the top surface of the bottom plate 1 by screws, the two second limit blocks 504 are installed at the center of the bottom surface and the top surface of the middle plate 5 by screws, and the third limit block 603 is installed at the center of the bottom surface of the top plate 6 by screws.

[0053] The additional stopper can prevent the roller layer 4 from slipping out of the curved rail when excessive displacement occurs, and also ensure that the upper and lower curved rails can roll the roller assembly relative to each other. The stopper is made of rubber blocks, which can buffer the roller layer 4 frame in extreme cases to prevent hard impact.

[0054] The working principle of the five-layer hyperbolic rail seismic isolation platform of the present invention is as follows: the bottom plate 1 is horizontally installed on the reference cabinet plate or the top plate of the exhibition stand, and the cultural relics are placed on the top surface of the top plate 6. When an earthquake occurs, the bottom plate 1 shakes under the influence of the earthquake, the roller layer 4 at the bottom guides and rolls in the X-axis direction, and the roller layer 4 at the top guides and rolls in the Y-axis direction. After the two vertical directions are combined, the horizontal movement amplitude of the top plate 6 can be reduced, and the earthquake waves with horizontal amplitude can be buffered and resisted, thereby protecting the cultural relics. When the middle plate 5 moves in the X-axis direction, the outer roller 403 of the bottom roller layer 4 rolls on the first curved rail 102. When the amplitude is large, the first limit block 103 contacts the inner edge of the square frame of the roller layer 4, and the inner roller 402 rolls relatively on the concave arc track surface of the third curved rail 503. The limit of the amplitude is that the second limit block 504 on the bottom surface of the middle plate 5 contacts the inner edge of the square frame of the roller layer 4. At the same time, the guide limit assembly on the bottom roller layer 4 plays the role of auxiliary sliding guidance and anti-slip. The light column section of the limit screw 3 and the through hole of the limit plate are guided and limited in the vertical direction to prevent the middle plate 5 from tipping over relative to the bottom plate 1. The movement of the top plate 6 relative to the middle plate 5 in the Y-axis direction is similar to the above process and will not be repeated here. After the earthquake stops, under the action of the gravity of the cultural relics, the inner roller 402 and the outer roller 403 return to the most concave part in the middle along the curved track, at which time the height of the entire device is the lowest.

[0055] In summary, the five-layer hyperbolic rail seismic isolation platform of the present invention is achieved by stacking together five-layer plate-like structures of the bottom plate 1, the roller layer 4, the middle plate 5 and the top plate 6. The layers are guided and slid one-way between each other. After the two vertical directions are combined, the horizontal movement amplitude of the top plate 6 in any direction can be reduced, and the earthquake waves with horizontal amplitude can be buffered to protect the cultural relics. The roller layer 4 is clamped by paired curved rails, and the cultural relics are reset by their own weight while also being able to obtain a larger eccentric displacement, meeting the requirements of seismic isolation work with a larger amplitude. The five-layer hyperbolic rail seismic isolation platform of the present invention is seismically isolated by a five-layer plate-like stacked structure. The roller layer is clamped by two relatively arranged curved rails, and can effectively use the cultural relics' own weight to reset smoothly. In addition, two identical sections of the concave arc rail surface are connected together to synchronously support the two roller assemblies on the same side, so that the horizontal parallel relationship between the spacer plate structures is always maintained; four roller assemblies are arranged between two adjacent layer plate structures to ensure structural stability; the inner roller 402 and the outer roller 403 rotate concentrically and asynchronously during rolling, so that the upper and lower concave arc rail surfaces sandwich the roller assemblies so that the rolling is independent and does not interfere with each other. By adding the guide limit assembly on the upper and lower sides of the roller layer 4, it plays the role of sliding guidance and anti-slipping in conjunction with the curved rail; the concave arc rail surface and the roller assembly are prevented from being dislocated and detached by the linear guide rail; the light column segment of the limit screw 3 and the through hole of the limit plate are used for vertical guidance and limitation to prevent overturning between the layer plate structures. By adding the limit block, on the one hand, it can prevent the roller layer 4 from slipping out of the curved rail when it is excessively displaced, and at the same time, it can also ensure that the upper and lower curved rails can roll the roller assembly relative to each other. The limit block is made of rubber blocks, which can buffer the frame of the roller layer 4 in extreme cases to prevent hard impact.

[0056] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0057] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A five-layer hyperbolic track seismic isolation platform, characterized in that: It comprises a bottom plate (1), a roller layer (4), a middle plate (5) and a top plate (6) which are stacked together in parallel; The top surface of the bottom plate (1) is symmetrically provided with two parallel first curved rails (102), the bottom surface of the middle plate (5) is provided with two parallel third curved rails (503), and one of the roller layers (4) is in rolling contact between the first curved rail (102) and the third curved rail (503) which are arranged opposite to each other; Cultural relics are placed on the top surface of the top plate (6); two parallel fourth curved rails (602) are symmetrically arranged on the bottom surface of the top plate (6); two parallel second curved rails (502) are arranged on the top surface of the middle plate (5); another roller layer (4) is in rolling contact between the second curved rail (502) and the fourth curved rail (602) which are arranged opposite to each other; and the fourth curved rail (602) is arranged perpendicular to the direction of the first curved rail (102).

2. The five-layer hyperbolic track seismic isolation platform according to claim 1 is characterized by: The rolling contact surface between the first curved rail (102) and the roller layer (4) is two identical concave arc rail surfaces, and the shape and structure of the second curved rail (502), the third curved rail (503) and the fourth curved rail (602) are consistent with the first curved rail (102).

3. The five-layer hyperbolic track seismic isolation platform according to claim 2 is characterized in that: The roller layer (4) comprises a square frame and roller assemblies, wherein four roller assemblies are symmetrically mounted on the outside of the wide side of the square frame; the roller assemblies are in rolling contact with the bottom plate (1), the middle plate (5) and / or the top plate (6).

4. The five-layer hyperbolic track seismic isolation platform according to claim 3 is characterized by: The roller assembly comprises a roller mounting shaft (401), an inner roller (402) and an outer roller (403); the root of the roller mounting shaft (401) is fixedly connected to the horizontal side of the square frame; the inner roller (402) and the outer roller (403) of the same specification are coaxially assembled on the cantilever end of the roller mounting shaft (401); the inner roller (402) rolls in contact with the inner curved rail, and the outer roller (403) rolls in contact with the outer curved rail.

5. The five-layer hyperbolic track seismic isolation platform according to any one of claims 1 to 4, characterized in that: It also comprises a guide and limit assembly, which is arranged on the upper and lower sides of the roller layer (4) to play the role of sliding guidance and anti-slipping.

6. The five-layer hyperbolic track seismic isolation platform according to claim 5 is characterized by: The number of guide limit assemblies arranged on each roller layer (4) is eight, four of which are used to prevent separation from lower components, and the other four are used to prevent separation from upper components.

7. The five-layer hyperbolic track seismic isolation platform according to claim 6 is characterized by: The guide limit assembly comprises a slider (2) and a limit screw (3); the bottom plate (1), the middle plate (5) and the top plate (6) are all provided with a linear guide rail on the side facing the roller layer (4); the linear guide rail is parallel to the curved rail on the same mounting surface; a limit plate is provided on the frame of the roller layer (4); a through hole is vertically opened at the cantilever end of the limit plate; the slider (2) is slidably connected to the linear guide rail, the limit screw (3) is threadedly connected to the distal end of the slider (2), and the light column section of the limit screw (3) is guided to pass through the through hole of the limit plate.

8. The five-layer hyperbolic track seismic isolation platform according to claim 1 is characterized by: It also comprises a limit block, which is arranged in the center of the bottom plate (1), the middle plate (5) and the top plate (6) on one side facing the roller layer (4), and the limit block is used to limit the frame of the roller layer (4) internally to prevent it from excessive displacement and falling out.

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