Shock insulation support

Abstract

The utility model discloses a shock insulation support and relates to the technical field of shock insulation and shock absorption of building structures. In the shock insulation support, a second connecting part of a connecting piece abuts against the surface of a base, a first connecting part enters a storage cavity of the base, and a plurality of dampers are arranged between the first connecting part and the cavity wall of the storage cavity; the first connecting part is arranged in the storage cavity, and the ball is arranged at the joint of the first connecting part and the storage cavity, so that when an earthquake comes, the first connecting part quickly responds to vibration caused by the earthquake under the action of the ball, the connecting piece displaces, the damper is extruded after the first connecting part displaces, and earthquake energy is passively consumed through the damper. When the shock insulation support faces a high-frequency or small-amplitude earthquake, due to the existence of the ball body, the damper is matched, and the shock insulation support can quickly respond and do energy dissipation action to reduce the vibration influence caused by the earthquake.

Description

Technical Field

[0001] The present application relates to the technical field of seismic isolation and vibration reduction of building structures, and in particular to a seismic isolation bearing. Background Art

[0002] Earthquakes, caused by the rapid release of energy from the Earth's crust, are extremely serious natural disasters. They not only damage buildings and structures, such as collapsed houses, collapsed bridges, cracked dams, and deformed railroad tracks, but also cause ground damage, such as cracks, collapses, and the eruption of water and sand. In extreme cases, earthquakes may also be accompanied by ground lights, causing harm to humans and animals.

[0003] To reduce the impact of earthquakes on buildings, seismic isolation bearings are typically added during construction. The quality of these bearings directly impacts a building's ability to survive an earthquake or minimize damage. Currently, traditional seismic isolation bearings fail to respond or respond in a timely manner to high-frequency or small-amplitude earthquakes. Utility Model Content

[0004] The present application aims to solve one of the above-mentioned technical problems in the prior art. To this end, an embodiment of the present application provides a seismic isolation bearing.

[0005] According to an embodiment of the present application, a seismic isolation bearing is provided, comprising a base having a storage cavity; a connecting member, the connecting member comprising a first connecting portion and a second connecting portion connected to each other, the first connecting portion being located in the storage cavity, a plurality of spheres being arranged between the bottom of the first connecting portion and the bottom of the storage cavity to support the first connecting portion, and the second connecting portion abutting against the top surface of the base; and a damper, a plurality of dampers being arranged between the cavity wall of the storage cavity and the side surface of the first connecting portion, the plurality of dampers being distributed in a circular array.

[0006] The above-mentioned seismic isolation bearing has at least the following beneficial effects: the second connecting portion of the connecting member abuts the surface of the base, the first connecting portion enters the storage cavity of the base, a number of dampers are arranged between the first connecting portion and the cavity wall of the storage cavity, and a sphere is arranged at the connection between the first connecting portion and the storage cavity, so that when an earthquake occurs, the first connecting portion quickly responds to the vibration caused by the earthquake under the action of the sphere, causing the connecting member to displace, and after the first connecting portion is displaced, it squeezes the damper, and the earthquake energy is passively consumed through the damper. When the seismic isolation bearing of the present application faces high-frequency or small-amplitude earthquakes, due to the presence of the sphere, in conjunction with the damper, it can quickly respond and perform energy-consuming actions to reduce the vibration impact caused by the earthquake.

[0007] According to the seismic isolation bearing described in the embodiment of the present application, the second connecting portion is a circular plate, and the edge of the second connecting portion abuts against the top surface of the base.

[0008] According to the seismic isolation bearing described in the embodiment of the present application, a lubricating layer is provided between the second connecting portion and the top surface of the base.

[0009] According to the seismic isolation bearing described in the embodiment of the present application, a bearing member is provided on the side of the second connecting portion facing away from the base, and the bearing member includes several rubber layers and several steel plate layers. The rubber layers and the steel plate layers are arranged alternately so that the rubber layers are adjacent to the steel plate layers.

[0010] According to the seismic isolation bearing described in the embodiment of the present application, the spheres are distributed at the bottom edge and center of the first connecting portion, and the spheres at the bottom edge of the first connecting portion are distributed in a circular array.

[0011] According to the seismic isolation bearing described in the embodiment of the present application, the first connecting portion and the bottom of the storage cavity are both provided with a groove for confining the sphere.

[0012] According to the seismic isolation bearing described in the embodiment of the present application, the ratio of the radius of the groove to the radius of the sphere is greater than or equal to 3.

[0013] According to the seismic isolation bearing described in the embodiment of the present application, the cross-section of the first connecting part is circular, one end of the first connecting part is connected to the middle part of the second connecting part, and a third connecting part is provided on the periphery of the other end. The third connecting part is connected to the bottom of the storage cavity through a plurality of rebound parts, and the ratio of the diameter of the third connecting part to the diameter of the first connecting part is greater than or equal to 2.

[0014] According to the seismic isolation bearing described in the embodiment of the present application, the rebound member is circumferentially arranged on the edge of the third connecting portion, one end of the rebound member is fixedly connected to the bottom of the storage cavity, and the other end is fixedly connected to the third connecting portion, and the angle formed between the rebound member and the first connecting portion is 45°.

[0015] According to the seismic isolation bearing described in the embodiment of the present application, the damper includes a piston cylinder and a piston rod, the piston cylinder is connected to the cavity wall of the storage cavity, the piston rod is connected to the first connecting part, the extension line of the piston rod intersects and is perpendicular to the central axis of the first connecting part, and the piston cylinder is filled with shear thickening liquid.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present application is further described below with reference to the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the structure of the embodiment of the present application Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the embodiment of the present application Figure 2 ;

[0020] Figure 3 It is a structural diagram of the damper in an embodiment of the present application.

[0021] Figure numerals: base 100, storage cavity 110, groove 111, lubricating layer 120, rebound member 130, sphere 140, connecting member 200, second connecting part 210, first connecting part 220, third connecting part 230, support member 300, rubber layer 310, steel plate layer 320, damper 400, piston cylinder 410, piston rod 420, shear thickening liquid 430. DETAILED DESCRIPTION

[0022] This section will describe the specific embodiments of the present application in detail. The preferred embodiments of the present application are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present application, but it cannot be understood as a limitation on the scope of protection of the present application.

[0023] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0024] In the description of this application, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0025] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0026] Reference Figure 1 and Figure 2 The embodiment of the present application provides a seismic isolation bearing that can quickly respond and unload energy in the face of high-frequency or small-amplitude earthquakes. When used in building structures or bridges, it can effectively reduce the impact of earthquakes.

[0027] Specifically, the seismic isolation bearing of the present application includes a base 100 , a connecting member 200 and a damper 400 .

[0028] The base 100 is provided with a storage cavity 110 , a portion of the connector 200 is disposed in the storage cavity 110 , and a damper 400 is disposed in the storage cavity 110 . The damper 400 is used to dissipate energy of the connector 200 .

[0029] Specifically, the connecting member 200 includes a first connecting portion 220 and a second connecting portion 210 that are connected to each other. The first connecting portion 220 is located in the storage cavity 110. Several balls 140 are arranged between the bottom of the first connecting portion 220 and the bottom of the storage cavity 110 to support the first connecting portion 220. The second connecting portion 210 abuts the top surface of the base 100 so that the connecting member 200 can be used for support. At the same time, several dampers 400 are arranged between the cavity wall of the storage cavity 110 and the side of the first connecting portion 220. The several dampers 400 are distributed in a circular array. When an earthquake occurs, no matter in which direction the connecting member 200 is displaced, it can be consumed by the damper 400 to achieve energy unloading. The setting of the steel balls can effectively reduce the friction that the connecting member 200 has to overcome when it is displaced, so that the seismic isolation bearing of the present application can respond quickly and perform energy-consuming actions when facing high-frequency or small-amplitude earthquakes to reduce the horizontal vibration impact caused by the earthquake.

[0030] In some embodiments, the second connecting portion 210 is a circular plate, and the edge of the second connecting portion 210 abuts the top surface of the base 100. Correspondingly, the cross-section of the storage cavity 110 is also circular, and the diameter of the second connecting portion 210 is larger than the diameter of the storage cavity 110. This ensures that when the connector 200 undergoes significant displacement in any direction, the second connecting portion 210 remains in contact with the top surface of the base 100, ensuring the support stability of the connector 200.

[0031] In some embodiments, a lubricating layer 120 is disposed between the second connecting portion 210 and the top surface of the base 100. This lubricating layer 120 reduces friction between the second connecting portion 210 and the base 100, improving the response speed of the connector 200 and, consequently, the entire seismic isolation bearing. In this embodiment, the lubricating layer 120 is a silicone grease lubricating layer.

[0032] The sphere 140, the lubricating layer 120 and the improved damper 400 can significantly reduce the resistance of the connector 200 when it is displaced, while also improving the response speed and accuracy of the connector 200 to earthquakes, enabling timely and effective response to high-frequency or small-amplitude earthquakes.

[0033] In some embodiments, such as Figure 1As shown, a support member 300 is disposed on the side of the second connecting portion 210 facing away from the base 100. The support member 300 includes several rubber layers 310 and several steel layers 320. The rubber layers 310 and the steel layers 320 are arranged alternately so that the rubber layers 310 and the steel layers 320 are adjacent to each other. The support member 300 formed by the alternating arrangement of the rubber layers 310 and the steel layers 320 can further dissipate vertical vibrations caused by earthquakes. In conjunction with the connector 200, it can fully reduce the impact of earthquake vibrations and effectively dissipate the energy generated by the vibrations.

[0034] The support member 300 of the present application is formed by stacking multiple rubber layers 310 and steel plate layers 320. The steel plate layers 320 serve as longitudinal reinforcement for the rubber layers 310, thereby increasing the longitudinal stiffness of the entire seismic isolation support.

[0035] Rubber is a highly elastic and viscous material. Its high elasticity enables the rubber layer 310 to effectively absorb and store vibration energy; its viscosity helps dissipate vibration energy by converting mechanical energy into heat. The support member 300, including the rubber layer 310, possesses sufficient internal damping, which is key to its vibration isolation effect. Internal damping refers to the energy dissipated by microscopic movements within a material during vibration, such as friction and collisions. Through its internal damping, the rubber layer 310 effectively reduces the amplitude of the vibration system, thereby achieving the purpose of vibration isolation.

[0036] In some embodiments, for buildings with a large deadweight, graphite may be added to the rubber layer 310 to increase the lateral stiffness of the rubber layer 310 .

[0037] In some embodiments, the spheres 140 are distributed at the bottom edge and center of the first connection portion 220. The spheres 140 at the bottom edge of the first connection portion 220 are distributed in a circular array. The even distribution of the spheres 140 makes the force applied to the first connection portion 220 more stable and ensures that the spheres 140 provide sufficient support when displacement occurs.

[0038] In this embodiment, five spheres 140 are provided. One sphere 140 is located at the bottom center of the first connecting portion 220, and the remaining four spheres 140 are evenly distributed around the edges of the first connecting portion 220. Of course, the number of spheres 140 can be adjusted based on actual needs and is not further limited here. The spheres 140 are made of special steel.

[0039] Furthermore, the first connection portion 220 and the bottom of the storage cavity 110 are both provided with a groove 111 for limiting the ball 140. The groove 111 serves to position and limit the rolling range of the ball 140. When an earthquake occurs, the first connection portion 220 will produce a horizontal displacement, which in turn drives the ball 140 to roll in the groove 111. The rolling of the ball 140 reduces the friction of the first connection portion 220.

[0040] Among them, the ratio of the radius of the groove 111 to the radius of the sphere 140 is greater than or equal to 3, providing sufficient space for the sphere 140 to move, and limiting the displacement of the sphere 140 to the range allowed by the support. When the damper 400 reaches the compression limit, the ball will not slide out of the bottom of the first connecting part 220.

[0041] Furthermore, the edges of the groove 111 must be polished smooth to prevent the ball 140 from collision and wear.

[0042] The arrangement of the groove 111 enables the connector 200 to be reset in time when the earthquake ends.

[0043] In some embodiments, the cross-section of the first connecting portion 220 is circular, one end of the first connecting portion 220 is connected to the middle of the second connecting portion 210, and a third connecting portion 230 is provided on the periphery of the other end. The third connecting portion 230 is connected to the bottom of the storage cavity 110 through a plurality of resilient parts 130, and the ratio of the diameter of the third connecting portion 230 to the diameter of the first connecting portion 220 is greater than or equal to 2.

[0044] The third connection portion 230 prevents the sphere 140 from detaching from the bottom of the first connection portion 220 during a strong earthquake. Furthermore, the third connection portion 230 is connected to the bottom of the storage cavity 110 via a plurality of resilient elements 130. This allows the elastic potential energy of the resilient elements 130 to reposition the connection member 200 after the earthquake. Furthermore, it prevents the connection member 200 from tilting due to excessive vibration during an earthquake, providing protection.

[0045] In some specific embodiments, the resilient member 130 is circumferentially arranged around the edge of the third connecting portion 230. One end of the resilient member 130 is fixedly connected to the bottom of the storage cavity 110, and the other end is fixedly connected to the third connecting portion 230. The angle formed between the resilient member 130 and the first connecting portion 220 is 45°. The resilient member 130 uses a high-elasticity cord to prevent the circular plate from tilting during operation and also provides a certain degree of self-reset function.

[0046] In addition, the arrangement direction of the resilient member 130 forms an angle of 45° with the axis of the first connecting portion 220 , which can effectively disperse the impact force when displacement occurs.

[0047] In the embodiment of the present application, the first connection portion 220 , the second connection portion 210 , and the third connection portion 230 are integrally formed, and the support of the connection member 200 is made of alloy steel.

[0048] like Figure 3 As shown, the damper 400 of the present application includes a piston cylinder 410 and a piston rod 420. The piston cylinder 410 is connected to the cavity wall of the storage cavity 110, and the piston rod 420 is connected to the first connecting part 220. The extension line of the piston rod 420 intersects and is perpendicular to the central axis of the first connecting part 220. The piston cylinder 410 is filled with a shear thickening liquid 430.

[0049] By evenly arranging multiple dampers 400 in the storage cavity 110 and around the sides of the first connecting part 220, and making the extension line of the piston rod 420 intersect and be perpendicular to the central axis of the first connecting part 220, when an earthquake occurs, no matter whether the connecting part 200 is displaced in any horizontal direction, the connecting part 200 can push the piston rod 420 to squeeze the shear thickening liquid 430 in the piston cylinder 410. Damping is generated in the process of the piston rod 420 pushing the shear thickening liquid 430, passively consuming earthquake energy.

[0050] The shear thickening fluid 430 (STF) in the piston cylinder 410 is an energy-absorbing and buffering fluid commonly used in engineering and is a non-Newtonian fluid.

[0051] The working principle of shear thickening fluid 430 is mainly based on its unique rheological properties. The viscosity of the system increases significantly with the increase of shear rate or shear stress. Therefore, STF has excellent shock absorption ability. When subjected to high-speed collision or extrusion, it can become hard to absorb external forces. When the external force disappears, it can return to its original soft state. Therefore, shear thickening fluid 430 can be used in the preparation of products such as liquid protective clothing, shock absorbers, and bulletproof materials.

[0052] When subjected to instantaneous high-speed shear load, the viscosity of STF will increase rapidly, transforming from a conventional fluid form into a high-viscosity shear-resistant liquid to absorb seismic energy; since the thickening process is reversible, when the load is removed, STF returns to a Newtonian fluid state.

[0053] In some embodiments, the dispersed phase of the STF uses highly wear-resistant silica particles and polyvinyl chloride particles, and the dispersion medium uses ethylene glycol.

[0054] The seismic isolation bearing of the present application can quickly sense and respond to vibrations caused by earthquakes or other external excitations, and effectively dissipate vibration energy through its internal damping mechanism.

[0055] In extreme situations such as earthquakes, the seismic isolation bearings of the present application can significantly reduce the dynamic displacement of the supported structure, reducing the risk of damage to the supported structure due to excessive vibration.

[0056] The seismic isolation bearing of the present application can reduce the wear of the rubber layer 310 of the bearing member 300 to a certain extent by adding the sphere 140 and the damper 400 with the shear thickening fluid 430, thereby saving maintenance costs and extending the overall service life of the seismic isolation bearing.

[0057] In addition, the seismic isolation bearing of the present application can be applied to various types of structures, including high-rise buildings, bridges, tunnels, and some large test benches, and has wide applicability.

[0058] The seismic isolation bearing of the present application can not only effectively isolate vibrations caused by external excitations such as earthquakes, but also effectively isolate equipment vibrations, protecting equipment and molds from vibration damage.

[0059] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present application.

Claims

1. A seismic isolation bearing, characterized in that: include A base having a storage cavity; a connecting member, the connecting member comprising a first connecting portion and a second connecting portion connected to each other, the first connecting portion being located in the storage cavity, a plurality of spheres being provided between a bottom of the first connecting portion and a bottom of the storage cavity to support the first connecting portion, and the second connecting portion abutting against a top surface of the base; Damper: a plurality of dampers are provided between the cavity wall of the storage cavity and the side surface of the first connecting portion, and the plurality of dampers are distributed in a circular array.

2. The seismic isolation support according to claim 1, characterized in that: The second connecting portion is a circular plate, and an edge of the second connecting portion abuts against the top surface of the base.

3. The seismic isolation support according to claim 2, characterized in that: A lubricating layer is provided between the second connecting portion and the top surface of the base.

4. The seismic isolation support according to claim 1, wherein: A support member is provided on the side of the second connection portion facing away from the base. The support member includes several rubber layers and several steel plate layers. The rubber layers and the steel plate layers are arranged alternately so that the rubber layers are adjacent to the steel plate layers.

5. The seismic isolation support according to claim 1, characterized in that: The spheres are distributed at the bottom edge and center of the first connecting portion, and the spheres at the bottom edge of the first connecting portion are distributed in a circular array.

6. The seismic isolation support according to claim 5, characterized in that: The first connecting portion and the bottom of the storage cavity are both provided with grooves for limiting the sphere.

7. The seismic isolation support according to claim 6, characterized in that: The ratio of the radius of the groove to the radius of the sphere is greater than or equal to 3.

8. The seismic isolation bearing according to any one of claims 1 to 7, characterized in that: The cross-section of the first connecting portion is circular, one end of the first connecting portion is connected to the middle of the second connecting portion, and a third connecting portion is provided on the periphery of the other end. The third connecting portion is connected to the bottom of the storage cavity through several resilient parts, and the ratio of the diameter of the third connecting portion to the diameter of the first connecting portion is greater than or equal to 2.

9. The seismic isolation support according to claim 8, characterized in that: The resilient member is circumferentially arranged at the edge of the third connecting portion, one end of the resilient member is fixedly connected to the bottom of the storage cavity, and the other end is fixedly connected to the third connecting portion, and the angle formed between the resilient member and the first connecting portion is 45°.

10. The seismic isolation bearing according to any one of claims 1 to 7, characterized in that: The damper includes a piston cylinder and a piston rod, the piston cylinder is connected to the cavity wall of the storage cavity, the piston rod is connected to the first connecting part, the extension line of the piston rod intersects and is perpendicular to the central axis of the first connecting part, and the piston cylinder is filled with shear thickening liquid.

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