Vertical tensile resistant seismic isolation device based on carbon fiber reinforced rubber

Abstract

The application discloses a vertical tension-resistant isolation device based on carbon fiber reinforced rubber, which comprises a bottom plate, a limiting cylinder fixedly connected to the top of the bottom plate and a conical ring plate fixedly connected to the bottom of a top plate, a bearing circular table and the conical ring plate are provided with conical carbon fiber plates and conical high-damping rubber layers arranged in a staggered manner, the conical carbon fiber plates and the conical high-damping rubber layers are bonded to form carbon fiber reinforced rubber, and a tension-resistant key in the center of the top plate and the bearing circular table in the center of the bottom plate form a rotating buckle structure. The vertical movement of the upper structure or equipment is converted into the compression-shear deformation of the carbon fiber reinforced rubber through the inclined design of the conical ring plate, the bearing circular table and the conical carbon fiber plate, the deformation energy consumption capacity of the high-damping rubber is fully utilized, the vertical isolation is realized, and the limiting cylinder and the tension-resistant key provide good tension-resistant performance. The application has the advantages of simple structure, reasonable stress, good tension-resistant performance, light and durable carbon fiber reinforced rubber, and large bearing capacity range.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction and isolation technology, and in particular to a vertical pull-out isolation device based on carbon fiber reinforced rubber. Background Technology

[0002] Laminated rubber bearings offer excellent horizontal seismic isolation capabilities, but their weight is often excessive, making construction difficult. Replacing the steel plates in laminated rubber bearings with carbon fiber plates can maintain the bearing's compressive strength, equivalent horizontal stiffness, and equivalent damping parameters essentially unchanged, while reducing the bearing's weight, thus improving its practicality and durability. However, due to limitations in bearing construction, laminated rubber bearings cannot effectively isolate vertical vibrations, failing to meet the vertical seismic isolation requirements of structures or equipment in certain situations, and may even amplify vertical vibrations. Therefore, developing new and effective vertical seismic isolation devices is necessary to meet the vertical isolation needs of large-span spatial structures and precision equipment in reality. Summary of the Invention

[0003] The purpose of this invention is to provide a vertical pull-out isolation device based on carbon fiber reinforced rubber, which can convert the vertical movement of the superstructure into the compression and shear deformation of the carbon fiber reinforced rubber, thereby effectively consuming seismic energy and reducing the seismic response of the structure, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A vertical pull-out isolation device based on carbon fiber reinforced rubber includes a base plate, a limiting cylinder fixedly connected to the top of the base plate and a conical ring plate fixedly connected to the bottom of the top plate in sliding engagement, a conical carbon fiber plate and a conical high-damping rubber layer arranged alternately between the pressure-bearing frustum and the conical ring plate, the conical carbon fiber plate and the conical high-damping rubber layer are bonded together to form carbon fiber reinforced rubber, and the pull-out key in the center of the top plate and the pressure-bearing frustum in the center of the base plate form a rotating snap-fit ​​structure.

[0006] Furthermore, the pull-out key includes a connecting plate and a guide post integrally formed with the connecting plate. The connecting plate is provided with bolt holes, and the side wall of the guide post is provided with three equally distributed lower fan-shaped locking teeth.

[0007] Furthermore, the outer wall of the limiting cylinder is cylindrical, the lower half of the inner wall is cylindrical, and the upper half of the cylinder wall is wedge-shaped, tapering from bottom to top.

[0008] Furthermore, the outer wall of the lower conical cylinder of the conical ring plate is parallel to the inner wall of the upper half of the limiting cylinder, and the inclination angle is 15°-60°. The maximum diameter of the horizontal section of the conical ring plate is smaller than the maximum diameter of the horizontal section of the limiting cylinder, and the maximum diameter of the horizontal section of the conical ring plate is larger than the minimum diameter of the horizontal section of the limiting cylinder. The conical ring plate is embedded in the limiting cylinder.

[0009] Furthermore, the pressure-bearing frustum is a hollow frustum, with the end with the larger cross-section being the lower end. The bottom surface of the pressure-bearing frustum is in contact with the upper surface of the base plate. The pressure-bearing frustum is located inside the limiting cylinder. The interior of the pressure-bearing frustum is a circular through hole. The upper part of the inner hole wall of the pressure-bearing frustum is provided with three equally distributed upper fan-shaped teeth that cooperate with the lower fan-shaped teeth of the guide post.

[0010] Furthermore, the conical carbon fiber plates are arranged in a stepped parallel pattern from the inside out, with the top of the conical carbon fiber plates being concave and the bottom being convex. The conical high-damping rubber layers are also arranged in a stepped parallel pattern from the inside out, with the top of the conical high-damping rubber layers being concave and the bottom being convex. Each layer of carbon fiber plates in the conical carbon fiber plates and each layer of high-damping rubber layers in the conical high-damping rubber layers are conical cylindrical, with the larger opening at the bottom. Each layer of carbon fiber plates in the conical carbon fiber plates and each layer of high-damping rubber layers in the conical high-damping rubber layers have the same height and inclination angle. Each layer of carbon fiber plates in the conical carbon fiber plates and each layer of high-damping rubber layers in the conical high-damping rubber layers are parallel. The number of layers of the conical high-damping rubber layers is one more than the number of layers in the conical carbon fiber plates. A layer of high-damping rubber layers fills the space between two adjacent layers of carbon fiber plates. The outer wall of the outermost carbon fiber plate is bonded to the inner wall of the outermost high-damping rubber layer, and the inner wall of the innermost carbon fiber plate is bonded to the outer wall of the innermost high-damping rubber layer.

[0011] Furthermore, the conical ring plate is composed of a lower conical cylinder and an upper cylindrical cylinder, with the opening diameter of the lower conical cylinder gradually decreasing from bottom to top.

[0012] Furthermore, the side wall conical surface of the pressure-bearing frustum, the conical carbon fiber plate, the conical high-damping rubber layer, and the lower conical inner wall of the conical ring plate are parallel to each other, and the inclination angle is 15°-60°.

[0013] Furthermore, the pressure-bearing frustum, the carbon fiber reinforced rubber composed of a conical carbon fiber plate and a conical high-damping rubber layer, and the conical ring plate are stacked and bonded in sequence, and then bonded by high-temperature vulcanization. The outer wall of the pressure-bearing frustum is bonded to the inner surface of the innermost rubber layer of the conical high-damping rubber layer, and the inner wall of the conical ring plate is bonded to the outer surface of the outermost rubber layer of the conical high-damping rubber layer.

[0014] Furthermore, the connecting plate is a hexagonal steel plate that matches the hexagonal through hole in the center of the top plate, and the connecting plate is embedded in the hexagonal through hole of the top plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention incorporates an anti-pull-out key. The guide post and hexagonal connecting plate of the anti-pull-out key ensure that the upper structure moves only in the vertical direction, preventing twisting and swaying of the structure. The fan-shaped locking teeth of the guide post and the fan-shaped locking teeth of the bearing frustum form a rotating latch. The conical ring plate and the limiting cylinder form a latching device. When the conical ring plate moves upward, it will be locked by the conical inner wall of the limiting cylinder; when the conical ring plate moves downward, it can only move vertically along the inner wall of the cylindrical surface of the limiting cylinder, providing good anti-pull-out performance for the device.

[0017] 2. The present invention adopts an inclined laminated rubber design, which can convert the vertical movement of the upper structure or equipment into the compression and shear deformation of carbon fiber reinforced rubber, thereby giving full play to the deformation energy dissipation capacity of high damping rubber and effectively achieving vertical vibration isolation.

[0018] 3. This invention uses carbon fiber plates instead of steel plates. While ensuring that the compressive strength, equivalent horizontal stiffness and equivalent damping of the laminated rubber bearing remain basically unchanged, the carbon fiber reinforced rubber is lightweight and easy to cut, thereby reducing the weight and processing difficulty of the bearing and improving the applicability of the rubber bearing.

[0019] 4. The present invention has a simple structure, reasonable stress distribution, and good stability. The thickness, number of layers, and inclination angle of the high-damping rubber layer can be changed according to the actual load-bearing capacity requirements. Compared with ordinary laminated steel plate rubber bearings, the weight and construction cost are reduced, making it more economical and practical. Attached Figure Description

[0020] Figure 1 This is an isometric view of the vertical pull-out isolation device based on carbon fiber reinforced rubber of the present invention;

[0021] Figure 2 This is a cross-sectional view of the vertical pull-out isolation device based on carbon fiber reinforced rubber of the present invention;

[0022] Figure 3 This is a front view of the vertical pull-out isolation device based on carbon fiber reinforced rubber according to the present invention;

[0023] Figure 4 This is a side view of the vertical pull-out isolation device based on carbon fiber reinforced rubber according to the present invention;

[0024] Figure 5 This is a top view of the vertical pull-out isolation device based on carbon fiber reinforced rubber according to the present invention;

[0025] Figure 6 For the present invention Figure 3 Cross-sectional view at point AA;

[0026] Figure 7 For the present invention Figure 4 Cross-sectional view at point BB in the middle;

[0027] Figure 8 For the present invention Figure 5 Cross-sectional view at point C;

[0028] Figure 9 This is an exploded isometric view of the vertical pull-out isolation device based on carbon fiber reinforced rubber of the present invention.

[0029] Figure 10 This is an exploded cross-sectional view of the vertical pull-out isolation device based on carbon fiber reinforced rubber of the present invention.

[0030] Figure 11 This is a top view of the pressure-bearing frustum of the present invention;

[0031] Figure 12 This is a bottom view of the pull-out key of the present invention.

[0032] In the figure: 1. Base plate; 2. Limiting cylinder; 3. Pressure-bearing frustum; 4. Conical carbon fiber plate; 5. Conical high-damping rubber layer; 6. Conical ring plate; 7. Top plate; 8. Pull-out key; 81. Connecting plate; 82. Guide column. Detailed Implementation

[0033] 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.

[0034] This invention addresses the problem that existing laminated rubber bearings cannot effectively isolate vertical vibrations, thus failing to meet the vertical vibration reduction and isolation requirements of structures or equipment in certain situations, and may even amplify vertical vibrations. Please refer to [link to relevant documentation]. Figures 1-12 The present invention provides the following embodiments.

[0035] The vertical pull-out isolation device based on carbon fiber reinforced rubber has a limiting cylinder 2 fixedly connected to the top of the base plate 1 and a conical ring plate 6 fixedly connected to the bottom of the top plate 7 in sliding fit. A conical carbon fiber plate 4 and a conical high-damping rubber layer 5 are arranged alternately between the pressure-bearing frustum 3 and the conical ring plate 6. The conical carbon fiber plate 4 and the conical high-damping rubber layer 5 are bonded together to form carbon fiber reinforced rubber. The pull-out key 8 in the center of the top plate 7 and the pressure-bearing frustum 3 in the center of the base plate 1 form a rotating snap-fit ​​structure.

[0036] The base plate 1 is provided with bolt through holes. The pull-out key 8 includes a connecting plate 81 and a guide post 82 integrally formed with the connecting plate 81. The connecting plate 81 is provided with bolt holes, and the guide post 82 is provided with three equally distributed lower fan-shaped locking teeth on its side wall.

[0037] It should be noted that the vertical isolation device is placed between the foundation and the superstructure. The bottom plate 1 is bolted to the lower foundation or supporting structure, and the top plate 81 is bolted to the superstructure.

[0038] The outer wall of the limiting cylinder 2 is cylindrical, the lower half of the inner wall is cylindrical, and the upper half of the cylinder wall of the limiting cylinder 2 is wedge-shaped, tapering from bottom to top.

[0039] It should be noted that the wall thickness of the limiting cylinder 2 increases from bottom to top, with the thickest wall at the top.

[0040] The pressure-bearing truncated cone 3 is a hollow truncated cone with a circular through hole inside. The upper part of the inner hole wall of the pressure-bearing truncated cone 3 is provided with three equally distributed upper fan-shaped teeth that cooperate with the lower fan-shaped teeth of the guide post 82. The pressure-bearing truncated cone 3 is placed in the center on the upper surface of the base plate 1, that is, the end with the larger cross section of the pressure-bearing truncated cone 3 is the lower end. The bottom surface of the pressure-bearing truncated cone 3 is in contact with the upper surface of the base plate 1. The pressure-bearing truncated cone 3 is located inside the limiting cylinder 2.

[0041] It should be noted that the pressure-bearing frustum 3 is not connected to the base plate 1, and the two can be detached.

[0042] The conical carbon fiber plates 4 are arranged in a stepped parallel pattern from the inside out, and the conical high-damping rubber layers 5 are arranged in a stepped parallel pattern from the inside out. Each carbon fiber plate and each high-damping rubber layer is a conical cylinder placed upright, that is, the end with the larger opening is at the bottom. The height and inclination angle of each carbon fiber plate and each high-damping rubber layer are the same. The conical carbon fiber plates 4 and the conical high-damping rubber layers 5 are parallel.

[0043] The conical high-damping rubber layer 5 has one more layer than the conical carbon fiber plate 4. A high-damping rubber layer fills the space between adjacent carbon fiber plates. The outermost carbon fiber plate's outer wall is bonded to the inner wall of the outermost high-damping rubber layer, and the innermost carbon fiber plate's inner wall is bonded to the outer wall of the innermost high-damping rubber layer. In other words, both the inner and outer walls of the conical carbon fiber plate 4 are bonded to the sidewalls of the conical high-damping rubber layer 5. The conical carbon fiber plate 4 and the conical high-damping rubber layer 5 are arranged alternately and bonded together to form carbon fiber reinforced rubber.

[0044] It should be noted that the conical high-damping rubber layer 5 is always one more layer than the conical carbon fiber plate 4, and the two are arranged alternately. This is equivalent to inserting a carbon fiber plate between every two adjacent high-damping rubber layers and bonding them together to form a conical carbon fiber reinforced rubber module.

[0045] The conical ring plate 6 is composed of a lower conical cylinder and an upper cylindrical cylinder, with the opening diameter of the lower conical cylinder gradually decreasing from bottom to top.

[0046] The side conical surface of the pressure-bearing frustum 3, the conical carbon fiber plate 4, the conical high-damping rubber layer 5, and the lower conical inner wall of the conical ring plate 6 are parallel to each other, and the inclination angle is 15°-60°.

[0047] The pressure-bearing truncated cone 3, the conical carbon fiber reinforced rubber composed of conical carbon fiber plate 4 and conical high-damping rubber layer 5, and the conical ring plate 6 are stacked and bonded in sequence, and are bonded by high-temperature vulcanization. The outer wall of the pressure-bearing truncated cone 3 is bonded to the inner surface of the innermost rubber layer of the conical high-damping rubber layer 5, and the inner wall of the conical ring plate 6 is bonded to the outer surface of the outermost rubber layer of the conical high-damping rubber layer 5.

[0048] It should be noted that the pressure-bearing frustum 3 and the conical ring plate 6 are respectively bonded to the inner and outer walls of the conical carbon fiber reinforced rubber module. That is, the pressure-bearing frustum 3 and the conical ring plate 6 are equivalent to the inner and outer end plates of the conical carbon fiber reinforced rubber. The extrusion action of the two keeps the carbon fiber reinforced rubber in a state of compression and shear.

[0049] The lower conical outer wall of the conical ring plate 6 is parallel to the inner wall of the upper half of the limiting cylinder 2, and the inclination angle is 15°-60°. The maximum diameter of the horizontal section of the conical ring plate 6 is slightly smaller than the maximum diameter of the horizontal section of the limiting cylinder 2, and the maximum diameter of the horizontal section of the conical ring plate 6 is significantly larger than the minimum diameter of the horizontal section of the limiting cylinder 2. The conical ring plate 6 is embedded in the limiting cylinder 2.

[0050] It should be noted that the limiting cylinder 2 is fitted into the conical ring plate 6 from the top. Since the maximum diameter of the horizontal cross section of the conical ring plate 6 is significantly larger than the minimum diameter of the horizontal cross section of the limiting cylinder 2, the conical ring plate 6 and the limiting cylinder 2 form a snap-fit ​​device. When the conical ring plate 6 moves upward, it will be snapped by the conical inner wall of the limiting cylinder 2; while when the conical ring plate 6 moves downward, it can only move vertically along the inner wall of the cylindrical surface of the limiting cylinder 2.

[0051] The top plate 7 is a circular steel plate with a hexagonal through hole in the middle.

[0052] The smaller end of the conical ring plate 6, i.e. the upper end, is fixedly connected to the lower surface of the top plate 7.

[0053] The connecting plate 81 of the pull-out key 8 is a hexagonal steel plate, the size of which matches the hexagonal through hole in the middle of the top plate 7. The connecting plate 81 is embedded in the hexagonal through hole of the top plate 7.

[0054] It should be noted that the connecting plate 81 should be fully embedded in the hexagonal through hole of the top plate 7, and its sidewall should fit as closely as possible to the sidewall of the through hole of the top plate 7. After the device is installed, the upper surface of the connecting plate 81 should be flush with the upper surface of the top plate 7.

[0055] The guide post 82 of the pull-out key 8 is embedded in the through hole of the pressure-bearing frustum 3, and the lower fan-shaped teeth of the guide post 82 and the upper fan-shaped teeth of the inner wall of the pressure-bearing frustum 3 form a rotating buckle.

[0056] It should be noted that the dimensions of the guide post 82 and the lower fan-shaped retaining tooth match the dimensions of the through hole of the pressure-bearing frustum 3 and the upper fan-shaped retaining tooth, so as to ensure that the guide post 82 can be embedded in the through hole of the pressure-bearing frustum 3 and can move in the through hole.

[0057] It should be noted that, under the same conditions, other composite material plates can be used instead of carbon fiber plates.

[0058] Specifically, the base plate 1 is fixed to the foundation, the connecting plate 81 is connected to the superstructure, and the vertical isolation device is installed between the foundation and the structure. Since the lower part of the pull-out key is unsupported, under gravity, the structure rests directly on the top plate 7, meaning the top plate 7 bears the pressure from the superstructure. The top plate 7 and the conical ring plate 6 move downwards under pressure, and the pressure is transmitted to the conical carbon fiber reinforced rubber module and the pressure-bearing frustum 3. The pressure-bearing frustum 3 is completely supported on the base plate 1, thus creating a compressive effect between the pressure-bearing frustum 3 and the conical ring plate 6. In other words, the conical carbon fiber reinforced rubber module composed of the conical high-damping rubber layer 5 and the conical carbon fiber plate 4 is compressed. When the superstructure moves vertically upwards under external force, the pull-out key 8 moves upwards along with it because the connecting plate 81 is fixedly connected to the bottom of the structure. After the pull-out key 8 moves upward a certain distance, the lower fan-shaped teeth on the guide column 82 contact the upper fan-shaped teeth on the bearing frustum 3, causing the bearing frustum 3 to move upward together. Meanwhile, the limiting cylinder 2 restricts the upward movement of the conical ring plate 6, resulting in the bearing frustum 3 and the conical ring plate 6 moving towards each other, thus compressing the conical carbon fiber reinforced rubber. When the structure experiences vertical displacement, the conical carbon fiber reinforced rubber composed of the conical high-damping rubber layer 5 and the conical carbon fiber plate 4 is constantly compressed. Due to the tilt angle of the conical carbon fiber reinforced rubber, the rubber undergoes compressive-shear deformation, ultimately converting the vertical displacement of the structure into the compressive-shear behavior of the carbon fiber reinforced rubber. Simultaneously, the guide column 82 and the through hole of the bearing frustum 3 are completely fitted, ensuring that the structure can only move vertically, preventing structural swaying. The hexagonal design of the connecting plate 81 prevents the support from twisting.

[0059] Working principle: When an earthquake occurs, vertically, as the structure moves downwards relative to the foundation, the conical ring plate 6 moves downwards, and the bearing frustum 3 is supported by the base plate 1. Therefore, the carbon fiber reinforced rubber between the conical ring plate 6 and the bearing frustum 3 is compressed, resulting in compressive-shear deformation. When the structure moves upwards relative to the foundation, the pull-out key 8 pulls the bearing frustum 3 upwards, but the conical ring plate 6 and the limiting cylinder 2 form a locking device, preventing the conical ring plate 6 from moving upwards. Therefore, the carbon fiber reinforced rubber between the conical ring plate 6 and the bearing frustum 3 is compressed, resulting in compressive-shear deformation. During the earthquake, the conical carbon fiber reinforced rubber composed of the conical high-damping rubber layer 5 and the conical carbon fiber plate 4 constantly undergoes compressive-shear deformation, effectively isolating and dissipating seismic energy, thereby achieving vertical seismic isolation.

[0060] This invention employs conical laminated rubber bearings to convert vertical vibrations of the structure into compressive-shear behavior of the rubber, fully utilizing the rubber's energy dissipation capacity and effectively isolating vertical seismic energy. The device uses carbon fiber plates instead of steel plates, effectively reducing the weight and construction difficulty of the laminated rubber bearings, and improving their applicability and durability. Simultaneously, the limiting cylinder and pull-out key give the device excellent pull-out resistance. This invention features a simple structure, reasonable stress distribution, good pull-out resistance, and a wide load-bearing range. The thickness, height, number of layers, and inclination angle of the conical high-damping rubber layer can be adjusted according to actual load-bearing requirements. Compared to ordinary laminated steel plate rubber bearings, it is lighter and more versatile. This invention can be directly used for vertical vibration reduction of structures, or combined with horizontal isolation devices such as horizontal laminated rubber bearings or friction pendulum bearings to achieve three-dimensional seismic isolation.

[0061] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A vertical pull-out isolation device based on carbon fiber reinforced rubber, comprising a base plate (1), characterized in that, The limiting cylinder (2) fixedly connected to the top of the base plate (1) and the conical ring plate (6) fixedly connected to the bottom of the top plate (7) are in sliding fit. A conical carbon fiber plate (4) and a conical high-damping rubber layer (5) are arranged alternately between the pressure-bearing frustum (3) and the conical ring plate (6). The conical carbon fiber plate (4) and the conical high-damping rubber layer (5) are bonded together to form carbon fiber reinforced rubber. The pull-out key (8) in the center of the top plate (7) and the pressure-bearing frustum (3) in the center of the base plate (1) form a rotating snap-fit ​​structure. The pull-out key (8) includes a connecting plate (81) and a guide post integrally formed with the connecting plate (81). (82), the connecting plate (81) is provided with bolt holes, the side wall of the guide post (82) is provided with three equally distributed lower fan-shaped teeth, the upper part of the inner hole wall of the pressure-bearing truncated cone (3) is provided with three equally distributed upper fan-shaped teeth that cooperate with the lower fan-shaped teeth of the guide post (82), the conical ring plate (6) is embedded in the limiting cylinder (2), the conical ring plate (6) and the limiting cylinder (2) form a buckling device, the pressure-bearing truncated cone (3), the carbon fiber reinforced rubber composed of the conical carbon fiber plate (4) and the conical high-damping rubber layer (5), and the conical ring plate (6) are stacked and bonded in sequence and bonded by high-temperature vulcanization.

2. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 1, characterized in that, The outer wall of the limiting cylinder (2) is cylindrical, the lower half of the inner wall is cylindrical, the upper half of the cylinder wall of the limiting cylinder (2) is wedge-shaped, and the opening is tapered from bottom to top.

3. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 2, characterized in that, The lower conical cylinder outer wall of the conical ring plate (6) is parallel to the inner wall of the upper half of the limiting cylinder (2), and the inclination angle is 15°-60°. The maximum diameter of the horizontal section of the conical ring plate (6) is smaller than the maximum diameter of the horizontal section of the limiting cylinder (2), and the maximum diameter of the horizontal section of the conical ring plate (6) is greater than the minimum diameter of the horizontal section of the limiting cylinder (2).

4. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 1, characterized in that, The pressure-bearing frustum (3) is a hollow frustum with the larger cross-section at the lower end. The bottom surface of the pressure-bearing frustum (3) is in contact with the upper surface of the base plate (1). The pressure-bearing frustum (3) is located inside the limiting cylinder (2). The interior of the pressure-bearing frustum (3) is a circular through hole.

5. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 1, characterized in that, The conical carbon fiber plates (4) are arranged in a stepped parallel pattern from the inside out. The top of the conical carbon fiber plates (4) is concave and the bottom is convex. The conical high-damping rubber layers (5) are arranged in a stepped parallel pattern from the inside out. The top of the conical high-damping rubber layers (5) is concave and the bottom is convex. Each layer of carbon fiber plate of the conical carbon fiber plate (4) and each layer of high-damping rubber layer (5) is conical cylindrical, with the larger opening at the bottom. Each layer of high-damping rubber has the same height and tilt angle. Each layer of carbon fiber plate (4) is parallel to each layer of high-damping rubber in conical high-damping rubber layer (5). The number of layers of conical high-damping rubber layer (5) is one more than the number of layers of conical carbon fiber plate (4). A layer of high-damping rubber is used to fill the space between two adjacent carbon fiber plates. The outer wall of the outermost carbon fiber plate is bonded to the inner wall of the outermost high-damping rubber layer. The inner wall of the innermost carbon fiber plate is bonded to the outer wall of the innermost high-damping rubber layer.

6. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 1, characterized in that, The conical ring plate (6) is composed of a lower conical cylinder and an upper cylindrical cylinder, with the opening diameter of the lower conical cylinder gradually decreasing from bottom to top.

7. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 1, characterized in that, The side wall conical surface of the pressure-bearing frustum (3), the conical carbon fiber plate (4), the conical high-damping rubber layer (5) and the lower conical inner wall of the conical ring plate (6) are parallel to each other and the inclination angle is 15°-60°.

8. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 7, characterized in that, The outer wall of the pressure-bearing truncated cone (3) is bonded to the inner surface of the innermost rubber layer of the conical high-damping rubber layer (5), and the inner wall of the conical ring plate (6) is bonded to the outer surface of the outermost rubber layer of the conical high-damping rubber layer (5).

9. The vertical pull-out isolation device based on carbon fiber reinforced rubber as described in claim 2, characterized in that, The connecting plate (81) is a hexagonal steel plate that matches the hexagonal through hole in the middle of the top plate (7). The connecting plate (81) is embedded in the hexagonal through hole of the top plate (7).

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