Multi-dimensional vibration isolation composite type anti-seismic support

Abstract

The utility model discloses a multidimensional vibration isolation composite type anti-seismic support, including support board no.

Description

Technical Field

[0001] This utility model relates to the field of vibration damping bearing technology, specifically to a multi-dimensional vibration isolation composite seismic bearing. Background Technology

[0002] Currently, the most widely used seismic isolation bearings (also known as earthquake-resistant bearings) are mainly of two types: rubber bearings and friction pendulum bearings, primarily used in building and bridge applications. Both types of seismic isolation bearings offer good isolation of horizontal earthquakes. However, due to their structural limitations, rubber bearings and friction pendulum bearings cannot effectively isolate vertical vibrations. Therefore, in some cases, these two types of bearings cannot meet the vertical vibration reduction and isolation requirements of structures or equipment, and may even amplify vertical vibrations. In the field of vibration isolation for electromechanical equipment, vibration reduction and isolation measures are mainly achieved through rubber pads or spring vibration isolation bearings.

[0003] The existing seismic isolation bearings, rubber pads, or spring vibration isolation bearings have the following problems: their vibration isolation performance is relatively limited and they cannot achieve multi-dimensional vibration isolation effects; seismic isolation bearings are only applicable to the building industry, while rubber pad or spring vibration isolation bearings are only applicable to the electromechanical equipment industry, lacking versatility in both fields. This utility model proposes a multi-dimensional vibration isolation composite seismic bearing to solve the above-mentioned technical problems. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a multi-dimensional vibration isolation composite seismic bearing. By embedding the vibration isolation layer in a "horizontal friction pendulum vibration isolation device", a compact unit integrating horizontal and vertical vibration isolation functions is formed. When the main body of the structure using this multi-dimensional vibration isolation composite seismic bearing is subjected to earthquake (or vibration) action, the components of the seismic bearing undergo relative sliding friction in the horizontal direction and vibration in the longitudinal direction, which causes the crown one and crown two on the spherical crown to shift and displace. At the same time, the vibration isolation layer in the middle of the two also deforms, which plays a role in consuming earthquake (or vibration) energy, thereby achieving the dual purpose of horizontal and vertical vibration reduction. The overall structural design is ingenious and reasonable, with balanced force, tight connection between components, low overall height, high overall stability, large vertical bearing capacity range, excellent vibration reduction effect, and good versatility. It can be applied to vibration isolation of precision equipment and electromechanical equipment, buildings in high-intensity and near-fault zones, important historical buildings and museums, long-span bridges or other complex building structures and other related fields.

[0005] To achieve the above objectives, the technical solution of this utility model is to design a multi-dimensional vibration isolation composite seismic bearing, including a bearing plate one, a bearing plate two, and a spherical crown. The lower side of the bearing plate has a circular concave arc surface one, and the upper side of the bearing plate two has a circular concave arc surface two. The spherical crown is composed of a crown body one, a vibration isolation layer, and a crown body two, which are sequentially composited into a sandwich structure. The convex arc surface of the crown body one facing away from the vibration isolation layer is in frictional engagement with the circular concave arc surface one on the lower side of the bearing plate, and the convex arc surface of the crown body two facing away from the vibration isolation layer is in frictional engagement with the circular concave arc surface two on the upper side of the bearing plate two.

[0006] This utility model discloses a multi-dimensional vibration isolation composite seismic bearing. By embedding the vibration isolation layer within a "horizontal friction pendulum vibration isolation device," a compact unit integrating horizontal and vertical vibration isolation functions is formed. When the main body of the structure using this multi-dimensional vibration isolation composite seismic bearing is subjected to earthquake (or vibration) action, the components of the seismic bearing undergo relative sliding friction in the horizontal direction and vibration in the longitudinal direction. This causes the first and second crowns on the spherical crown to shift and displace, while the vibration isolation layer in the middle of the two also deforms, thus consuming earthquake (or vibration) energy. This achieves the dual purpose of horizontal and vertical vibration reduction and isolation. The overall structural design is ingenious and reasonable, with balanced force, tight connections between components, low overall height, high overall stability, a large vertical bearing capacity range, excellent vibration reduction effect, and good versatility. It can be applied to vibration isolation of precision equipment and electromechanical equipment, buildings in high-intensity and near-fault zones, important historical buildings and museums, long-span bridges, or other complex building structures.

[0007] The preferred technical solution is that the inner diameter of the circular concave arc surface is greater than the outer diameter of the crown, and the lower side of the support plate also has an annular rim coaxially located on the outer periphery of the circular concave arc surface.

[0008] Alternatively, the inner diameter of the second circular concave surface is greater than the outer diameter of the second crown, and the upper side of the second support plate also has an annular retaining edge coaxially located on the outer periphery of the second circular concave surface. When the main body of the structure using the multi-dimensional vibration isolation composite seismic bearing of this utility model is subjected to earthquake (or vibration) action, the corresponding circular concave surface one and the annular retaining edge (or the corresponding circular concave surface two and the annular retaining edge) of this structural design ensure that when the spherical crown undergoes horizontal relative sliding friction with the first and second support plates, the first crown will not slip out of the interior of the first circular concave surface (or the second crown will not slip out of the interior of the second circular concave surface), thus improving the safety of use.

[0009] A further preferred technical solution is that a wear-resistant layer is fixedly provided on the inner surface of the first circular concave arc surface and / or the inner surface of the second circular concave arc surface. The wear-resistant layer effectively improves the wear resistance of the inner surfaces of the first and second circular concave arc surfaces, helping to extend the service life of the multi-dimensional vibration isolation composite seismic bearing of this utility model.

[0010] A further preferred technical solution is that both the first crown and the vibration isolation layer have protrusions protruding to one side of the second crown, and the second crown has a groove that corresponds to and matches the protrusions, with the protrusions being fitted into the grooves.

[0011] Alternatively, both the second crown and the vibration isolation layer have protrusions protruding towards the first crown, and the first crown has corresponding grooves that fit within these protrusions. The corresponding protrusions and grooves between the first crown, the vibration isolation layer, and the second crown significantly improve the interlocking force between them, helping to ensure good overall consistency of the crown and reducing the likelihood of separation during vibration.

[0012] A further preferred technical solution is that the vibration isolation layer is made of rubber, and the first crown, the vibration isolation layer, and the second crown are processed into an integral spherical crown through a vulcanization process. The method of processing the first crown, the vibration isolation layer, and the second crown into a spherical crown is simple, robust, and stable, ensuring the successful fabrication and implementation of this multi-dimensional vibration isolation composite seismic support.

[0013] A further preferred technical solution is that both support plate one and support plate two are square plates with unequal side lengths, and both have chamfered corners. The square structure with unequal side lengths on support plate one and support plate two is generally positioned with the larger support plate on top. In this case, the inner diameter of the corresponding circular concave surface on the support plate is greater than the corresponding crown on the spherical cap, thus helping to ensure that the multi-dimensional vibration isolation composite seismic bearing of this invention effectively provides vibration isolation protection. Compared to the 90° right angle corners, the chamfered corners of support plate one and support plate two help reduce the risk of corner impact damage, thereby ensuring good safety during installation and use of the multi-dimensional vibration isolation composite seismic bearing of this invention.

[0014] A further preferred technical solution is that both the first and second support plates have mounting holes at their corners located outside the spherical crown, and the larger of the two plates also has several connecting holes for installing connecting bolts. The mounting holes at the corners facilitate bolted connections, ground anchor connections, or connections using embedded parts with the main structure, allowing for flexible selection of the connection method between the support plate and the main structure based on the actual usage scenario; the connecting holes can be used to install connecting bolts to further ensure the robustness of the connection between the support plate and the main structure.

[0015] A further preferred technical solution is that the corner of the smaller of the two support plates is provided with a stepped groove with an opening facing the spherical crown and the outer side, and the mounting hole is provided on the bottom or top wall of the stepped groove. Since the circular concave surface on the smaller of the two support plates corresponds to the crown body on the spherical crown in frictional engagement, and the mounting hole is located inside the stepped groove at the corner of the support plate, the connecting piece used to connect the support plate to the corresponding main structure is recessed inside the stepped groove. This ensures that the end of the connecting piece facing the spherical crown will not obstruct the horizontal frictional sliding of the crown body inside the circular concave surface, ensuring good smoothness of the crown body's horizontal frictional sliding within the circular concave surface. This helps to ensure that the multi-dimensional vibration isolation composite seismic bearing of this utility model can better exert its multi-dimensional vibration isolation function during installation and use.

[0016] A further preferred technical solution includes a temporary constraint assembly connecting the first and second support plates together. The first and second support plates of the assembled multi-dimensional vibration isolation composite seismic bearing are connected together by the temporary constraint assembly, ensuring good overall consistency among the first support plate, the spherical cap, and the second support plate. This helps improve the convenience and safety of the hoisting and transportation processes of the multi-dimensional vibration isolation composite seismic bearing of this invention.

[0017] A further preferred technical solution includes a connecting blind hole on the outer peripheral side of the smaller of the two support plates. The temporary restraint assembly includes an L-shaped connecting plate, with oblong holes at both ends. One end of the L-shaped connecting plate is fixed to one of the two support plates by screws passing through the corresponding oblong holes and connecting holes. The other end of the L-shaped connecting plate is fixed to the other of the two support plates by screws passing through the corresponding oblong holes and connecting blind holes. The temporary restraint assembly has a clever and reasonable structural design, high feasibility in fabrication and implementation, and good ease of installation and disassembly.

[0018] The advantages and beneficial effects of this utility model are as follows:

[0019] 1. This utility model discloses a multi-dimensional vibration isolation composite seismic bearing. By embedding the vibration isolation layer within a "horizontal friction pendulum vibration isolation device," a compact unit integrating horizontal and vertical vibration isolation functions is formed. When the main structure of the structure using this utility model is subjected to earthquake (or vibration) action, the components of the seismic bearing undergo relative sliding friction in the horizontal direction and vibration in the longitudinal direction. This causes the first and second crowns on the spherical crown to shift and displace, while the vibration isolation layer in the middle of the two also deforms, thus consuming the earthquake (or vibration) energy. This achieves the dual purpose of horizontal and vertical vibration reduction and isolation. The overall structural design is ingenious and reasonable, with balanced force, tight connection between components, low overall height, high overall stability, large vertical bearing capacity range, excellent vibration reduction effect, and good versatility. It can be applied to vibration isolation of precision equipment and electromechanical equipment, buildings in high-intensity and near-fault zones, important historical buildings and museums, long-span bridges, or other complex building structures.

[0020] 2. The inner diameter of the first circular concave surface is greater than the outer diameter of the first crown, and the lower side of the support plate also has an annular retaining edge coaxially located on the outer periphery of the first circular concave surface; or, the inner diameter of the second circular concave surface is greater than the outer diameter of the second crown, and the upper side of the second support plate also has an annular retaining edge coaxially located on the outer periphery of the second circular concave surface. When the main body of the structure using the multi-dimensional vibration isolation composite seismic bearing of this utility model is subjected to earthquake (or vibration) action, the corresponding circular concave surface and annular retaining edge (or the corresponding circular concave surface and annular retaining edge) of this structural design ensure that when the spherical crown undergoes horizontal relative sliding friction with the first and second support plates, the first crown will not slide out of the first circular concave surface (or the second crown will not slide out of the second circular concave surface), thus improving the safety of use.

[0021] 3. A wear-resistant layer is fixedly provided on the inner surface of the first circular concave arc surface and / or the inner surface of the second circular concave arc surface. The wear-resistant layer effectively improves the wear resistance of the inner surfaces of the first and second circular concave arc surfaces, and helps to extend the service life of the multi-dimensional vibration isolation composite seismic bearing of this utility model.

[0022] 4. Corresponding and fitting bosses and grooves are provided between Crown 1, the vibration isolation layer and Crown 2, which significantly improves the interlocking force of the three and helps to ensure the overall consistency of the crown and reduce the probability of the three separating during vibration.

[0023] 5. Support plate one and support plate two are designed as square structures with unequal side lengths. Generally, the support plate with the larger size is placed on the upper side. At this time, the inner diameter of the corresponding circular concave arc surface on the support plate is greater than the corresponding crown on the spherical crown, which helps to ensure that the multi-dimensional vibration isolation composite seismic bearing of this utility model plays an effective role in vibration isolation. Compared with the 90° right angle corner, the corners of support plate one and support plate two are designed as chamfered structures, which helps to reduce the risk of corner impact damage, thereby ensuring good safety when the multi-dimensional vibration isolation composite seismic bearing of this utility model is installed and used.

[0024] 6. Both support plate one and support plate two have mounting holes at their corners located outside the spherical crown. The larger of the two plates also has several connecting holes for installing connecting bolts. The mounting holes at the corners facilitate bolted connections, ground anchor connections, or connections using embedded parts with the main structure, allowing for flexible selection of the connection method between the support plate and the main structure according to the actual usage scenario. The connecting holes can be used to install connecting bolts to further ensure the firmness of the connection between the support plate and the main structure.

[0025] 7. The smaller of the two support plates, support plate one and support plate two, has a stepped groove at its corner with an opening facing the spherical crown and the outer side. The mounting hole is provided on the bottom or top wall of the stepped groove. Since the circular concave surface on the smaller of the two support plates corresponds to the crown body on the spherical crown in frictional engagement, the mounting hole is located inside the stepped groove at the corner of the support plate. This allows the connecting piece for connecting the support plate to the corresponding main structure to be recessed inside the stepped groove. Consequently, the end of the connecting piece facing the spherical crown will not obstruct the horizontal frictional sliding of the crown body inside the circular concave surface, ensuring smooth horizontal frictional sliding of the crown body inside the circular concave surface. This helps ensure that the multi-dimensional vibration isolation composite seismic bearing of this utility model can better perform its multi-dimensional vibration isolation function during installation and use.

[0026] 8. It also includes a temporary constraint assembly that connects the first support plate and the second support plate together. The first support plate and the second support plate on the assembled multi-dimensional vibration isolation composite seismic bearing are connected together by the temporary constraint assembly, thereby ensuring good overall consistency among the first support plate, the spherical cap, and the second support plate, which helps to improve the convenience and safety of the hoisting, transportation, and other processes of the multi-dimensional vibration isolation composite seismic bearing of this utility model. Attached Figure Description

[0027] Figure 1 This is a top-view perspective view of a multi-dimensional vibration isolation composite seismic support of this utility model;

[0028] Figure 2 This is a perspective view of a multi-dimensional vibration isolation composite seismic support according to this utility model.

[0029] Figure 3 This is a longitudinal sectional view of a multi-dimensional vibration isolation composite seismic support according to this utility model;

[0030] Figure 4 yes Figure 3 Enlarged view of a section at point H;

[0031] Figure 5 This is an exploded view of a multi-dimensional vibration isolation composite seismic support according to this utility model;

[0032] Figure 6 This is a three-dimensional view of the support plate from an upward angle (wear-resistant layer 1 is hidden);

[0033] Figure 7 This is a top-down perspective view of bearing plate two (wear-resistant layer two is hidden);

[0034] Figure 8 It is a top-down 3D view of the spherical crown;

[0035] Figure 9 It is a three-dimensional view of the spherical crown from an upward angle;

[0036] Figure 10 This is a 3D view of the temporary constraint component;

[0037] Figure 11 It is a top-down 3D view of several multi-dimensional vibration isolation composite seismic bearings used in combination.

[0038] In the diagram: 1. Support plate one; 2. Support plate two; 3. Spherical crown; 4. Temporary restraint assembly; 5. Wear-resistant layer one; 6. Wear-resistant layer two; 7. Connecting plate; 1-1. Circular concave arc surface one; 1-2. Annular rim; 1-3. Mounting hole one; 1-4. Connecting hole; 2-1. Circular concave arc surface two; 2-2. Mounting hole two; 2-3. Step groove; 2-4. Connecting blind hole; 3-1. Crown body one; 3-1a. Boss; 3-2. Vibration isolation layer; 3-3. Crown body two; 3-3a. Groove; 4-1. L-shaped connecting plate; 4-2. Waist-shaped hole; 4-3. Screw. Detailed Implementation

[0039] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0040] Example

[0041] like Figures 1-10As shown, a multi-dimensional vibration isolation composite seismic bearing includes a bearing plate 1, a bearing plate 2, and a spherical crown 3. The lower side of the bearing plate 1 has a circular concave arc surface 1-1, and the upper side of the bearing plate 2 has a circular concave arc surface 2-1. The spherical crown 3 is composed of a crown body 3-1, a vibration isolation layer 3-2, and a crown body 3-3, which are sequentially composited into a sandwich structure. The convex arc surface of the crown body 3-1 facing away from the vibration isolation layer 3-2 is in frictional fit with the circular concave arc surface 1-1 on the lower side of the bearing plate 1, and the convex arc surface of the crown body 3-3 facing away from the vibration isolation layer 3-2 is in frictional fit with the circular concave arc surface 2-1 on the upper side of the bearing plate 2.

[0042] Preferably, the inner diameter of the circular concave arc surface 1-1 is greater than the outer diameter of the crown 3-1, and the lower side of the support plate 1 also has an annular rim 1-2 coaxially located on the outer periphery of the circular concave arc surface 1-1.

[0043] Alternatively, the inner diameter of the circular concave surface 2-1 is greater than the outer diameter of the crown 3-3, and the upper side of the support plate 2 also has an annular rim 1-2 coaxially located on the outer periphery of the circular concave surface 2-1.

[0044] More preferably, a wear-resistant layer is fixedly provided on the inner surface of the circular concave arc surface 1-1 and / or the inner surface of the circular concave arc surface 2-1. Specifically, a wear-resistant layer 5 is fixedly provided on the inner surface of the circular concave arc surface 1-1, and a wear-resistant layer 6 is fixedly provided on the inner surface of the circular concave arc surface 2-1. The wear-resistant layer 5 and the wear-resistant layer 6 can be made of wear-resistant materials with low coefficient of friction, such as polytetrafluoroethylene or ultra-high molecular weight polyethylene.

[0045] More preferably, both the crown body 3-1 and the vibration isolation layer 3-2 have a boss 3-1a protruding towards the crown body 3-3, and the crown body 3-3 has a groove 3-3a that corresponds to and fits the boss 3-1a, with the boss 3-1a being fitted into the groove 3-3a.

[0046] Alternatively, both the second crown 3-3 and the vibration isolation layer 3-2 have a boss 3-1a protruding towards the first crown 3-1, and the first crown 3-1 has a groove 3-3a that corresponds to and fits the boss 3-1a, with the boss 3-1a being fitted inside the groove 3-3a.

[0047] More preferably, the vibration isolation layer 3-2 is made of rubber, and the crown 3-1, the vibration isolation layer 3-2, and the crown 3-3 are processed into an integral spherical crown 3 through a vulcanization process.

[0048] More preferably, both the support plate 1 and the support plate 2 are square plates with different side lengths, and both have chamfered corners.

[0049] More preferably, both the support plate 1 and the support plate 2 have mounting holes located outside the spherical crown 3 at their corners, and the larger of the two plates also has several connecting holes 1-4 for mounting connecting bolts. Specifically, the corner of the support plate 1 has mounting holes 1-3, and the corner of the support plate 2 has mounting holes 2-2 (see Appendix). Figure 6 and attached Figure 7 ).

[0050] More preferably, the corner of the smaller of the two support plates 1 and 2 is provided with a stepped groove 2-3 opening towards the spherical crown 3 and the outer side, and the mounting hole is formed on the bottom or top wall of the stepped groove 2-3. Specifically, the side length of the support plate 1 is greater than the side length of the support plate 2, the corner of the support plate 2 has a stepped groove 2-3 opening towards the spherical crown 3 and the outer side, and the bottom wall of the stepped groove 2-3 is provided with a mounting hole 2-2 (see Appendix). Figure 7 ).

[0051] More preferably, it also includes a temporary constraint assembly 4 that connects the support plate 1 and the support plate 2 together.

[0052] More preferably, the outer peripheral side of the smaller of the two support plates 1 and 2 is provided with a connecting blind hole 2-4. The temporary restraint assembly 4 includes an L-shaped connecting plate 4-1. Both ends of the L-shaped connecting plate 4-1 are provided with oblong holes 4-2. One end of the L-shaped connecting plate 4-1 is fixed to one of the two support plates 1 and 2 by screws 4-3 passing through the corresponding oblong holes 4-2 and connecting holes 1-4. The other end of the L-shaped connecting plate 4-1 is fixed to the other of the two support plates 1 and 2 by screws 4-3 passing through the corresponding oblong holes 4-2 and connecting blind holes 2-4.

[0053] This utility model discloses a multi-dimensional vibration isolation composite seismic bearing. By embedding the vibration isolation layer within a "horizontal friction pendulum vibration isolation device," a compact unit integrating horizontal and vertical vibration isolation functions is formed. When the main body of the structure using this multi-dimensional vibration isolation composite seismic bearing is subjected to earthquake (or vibration) action, the components of the seismic bearing undergo relative sliding friction in the horizontal direction and vibration in the longitudinal direction. This causes the first and second crowns on the spherical crown to shift and displace, while the vibration isolation layer in the middle of the two also deforms, thus consuming earthquake (or vibration) energy. This achieves the dual purpose of horizontal and vertical vibration reduction and isolation. The overall structural design is ingenious and reasonable, with balanced force, tight connections between components, low overall height, high overall stability, a large vertical bearing capacity range, excellent vibration reduction effect, and good versatility. It can be applied to vibration isolation of precision equipment and electromechanical equipment, buildings in high-intensity and near-fault zones, important historical buildings and museums, long-span bridges, or other complex building structures.

[0054] Specifically, the multi-dimensional vibration isolation composite seismic bearing of this utility model can be used in the following industries:

[0055] (1) Vibration isolation of precision equipment and electromechanical equipment: In fields such as data center servers, medical MRI equipment, semiconductor manufacturing equipment, and precision experimental instruments, which are extremely sensitive to micro-vibrations, traditional springs or rubber pads are difficult to achieve both horizontal and vertical vibration isolation at the same time.

[0056] (2) Buildings in high-intensity and near-fault zones: Earthquakes in these areas usually contain strong vertical components. The multi-dimensional vibration isolation composite seismic bearing of this utility model can provide more comprehensive seismic isolation (vibration) protection for key facilities such as hospitals, emergency command centers, and nuclear power plants.

[0057] (3) Important historical buildings and museums: While protecting the building structure, the multi-dimensional vibration isolation composite seismic support of this utility model can also effectively isolate the vibration energy transmitted to the precious cultural relics and murals inside.

[0058] (4) Long-span bridges or other complex building structures: These structures have higher requirements for the multidimensional displacement and stress of seismic bearings. The multidimensional vibration isolation composite seismic bearing of this utility model can provide more comprehensive support for these main structures.

[0059] The multi-dimensional vibration isolation composite seismic bearing of this utility model also has the following advantages:

[0060] (1) Multi-dimensional protection: It truly achieves dual high-efficiency seismic isolation (vibration) effect in both horizontal and vertical directions.

[0061] (2) Adjustable performance: The horizontal isolation (vibration) period can be adjusted by changing the radius of curvature R of the crown body; the vertical stiffness and damping coefficient can also be adjusted by changing the height and material of the internal isolation layer of the crown, which provides good design flexibility.

[0062] (3) Structural stability: The highly integrated design brings higher overall stability.

[0063] (4) Compact and efficient: The low overall height helps save installation space;

[0064] (5) During installation and use, a single multi-dimensional vibration isolation composite seismic bearing can be used independently, or several multi-dimensional vibration isolation composite seismic bearings can be laid flat and spliced ​​together. Adjacent seismic bearings are fixedly connected by a connecting plate 7 laid flat and fixed to the upper side of the bearing plate 1 or bearing plate 2. The connecting plate 7 is fixedly connected to the corresponding bearing plate 1 or bearing plate 2 by screws passing through the corresponding mounting holes (see Appendix). Figure 11 The main equipment is installed on the upper surface of several connecting plates 7.

[0065] The above description is only a preferred embodiment of the present utility model. 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 utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-dimensional vibration isolation composite seismic bearing, characterized in that, The structure includes a support plate 1 (1), a support plate 2 (2), and a spherical crown (3). The support plate 1 (1) has a circular concave arc surface 1 (1-1) on its lower side, and the support plate 2 (2) has a circular concave arc surface 2 (2-1) on its upper side. The spherical crown (3) is composed of a crown body 1 (3-1), a vibration isolation layer (3-2), and a crown body 2 (3-3) arranged in a sandwich structure. The convex arc surface of the crown body 1 (3-1) facing away from the vibration isolation layer (3-2) is in frictional fit with the circular concave arc surface 1 (1-1) on the lower side of the support plate 1 (1), and the convex arc surface of the crown body 2 (3-3) facing away from the vibration isolation layer (3-2) is in frictional fit with the circular concave arc surface 2 (2-1) on the upper side of the support plate 2 (2).

2. The multi-dimensional vibration isolation composite seismic bearing as described in claim 1, characterized in that, The inner diameter of the circular concave arc surface (1-1) is greater than the outer diameter of the crown (3-1). The lower side of the support plate (1) also has an annular rim (1-2) coaxially located on the outer periphery of the circular concave arc surface (1-1). Alternatively, the inner diameter of the second circular concave surface (2-1) is greater than the outer diameter of the second crown (3-3), and the upper side of the second support plate (2) also has an annular rim (1-2) coaxially located on the outer periphery of the second circular concave surface (2-1).

3. The multi-dimensional vibration isolation composite seismic bearing as described in claim 2, characterized in that, A wear-resistant layer is fixedly provided on the inner side of the first circular concave arc surface (1-1) and / or the inner side of the second circular concave arc surface (2-1).

4. The multi-dimensional vibration isolation composite seismic bearing as described in claim 3, characterized in that, Both the first crown (3-1) and the vibration isolation layer (3-2) have a boss (3-1a) protruding towards the second crown (3-3) side. The second crown (3-3) has a groove (3-3a) that corresponds to and fits the boss (3-1a). The boss (3-1a) is fitted into the groove (3-3a). Alternatively, both the second crown (3-3) and the vibration isolation layer (3-2) have a boss (3-1a) protruding towards the first crown (3-1), and the first crown (3-1) has a groove (3-3a) that corresponds to and fits the boss (3-1a), with the boss (3-1a) embedded in the groove (3-3a).

5. The multi-dimensional vibration isolation composite seismic bearing as described in claim 4, characterized in that, The vibration isolation layer (3-2) is made of rubber, and the crown one (3-1), vibration isolation layer (3-2) and crown two (3-3) are processed into an integral spherical crown (3) by vulcanization process.

6. The multi-dimensional vibration isolation composite seismic bearing as described in claim 5, characterized in that, Both the support plate one (1) and the support plate two (2) are square plates with different side lengths and chamfered corners.

7. The multi-dimensional vibration isolation composite seismic bearing as described in claim 6, characterized in that, Both the support plate one (1) and the support plate two (2) have mounting holes at their corners located outside the spherical crown (3), and the larger of the two is also provided with several connecting holes (1-4) for installing connecting bolts.

8. The multi-dimensional vibration isolation composite seismic bearing as described in claim 7, characterized in that, The smaller of the two support plates (1) and (2) is provided with a stepped groove (2-3) with an opening facing the spherical crown (3) and the outside, and the mounting hole is provided on the bottom or top wall of the stepped groove (2-3).

9. The multi-dimensional vibration isolation composite seismic bearing as described in claim 8, characterized in that, It also includes a temporary constraint assembly (4) that connects the first support plate (1) and the second support plate (2) together.

10. The multi-dimensional vibration isolation composite seismic bearing as described in claim 9, characterized in that, The outer peripheral side of the smaller of the two support plates (1) and (2) is provided with a connecting blind hole (2-4). The temporary constraint assembly (4) includes an L-shaped connecting plate (4-1). Both ends of the L-shaped connecting plate (4-1) are provided with waist-shaped holes (4-2). One end of the L-shaped connecting plate (4-1) is fixed to one of the two support plates (1) and (2) by a screw (4-3) that passes through the corresponding waist-shaped hole (4-2) and the connecting hole (1-4). The other end of the L-shaped connecting plate (4-1) is fixed to the other of the two support plates (1) and (2) by a screw (4-3) that passes through the corresponding waist-shaped hole (4-2) and the connecting blind hole (2-4).

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