Composite electromagnetic multi-dimensional shock isolation device

Abstract

The invention belongs to the technical field of seismic mitigation and isolation, and particularly relates to a composite electromagnetic multi-dimensional seismic isolation device which comprises a damping pad, supporting rods are arranged on the left side and the right side of the damping pad, and each supporting rod is sleeved with a first sleeve assembly and a second sleeve assembly which can slide up and down. A vertical shock isolation mechanism is arranged at the top of the damping pad and located between the two supporting rods. A first rod piece, a second rod piece, a third rod piece, a fourth rod piece, a fifth rod piece and a sixth rod piece are further included, and a horizontal shock isolation mechanism is arranged between each supporting rod and the corresponding outer wall. According to the invention, the energy of vibration can be effectively absorbed and dispersed, and the impact of vibration on a building structure is reduced, so that the damage of vibration to the building structure is avoided, and multiple effects on vibration are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of vibration reduction and isolation, and in particular relates to a composite electromagnetic multi-dimensional vibration isolation device. Background Art

[0002] In order to improve the comfort and seismic safety of buildings under the influence of subway vibration, domestic and foreign scholars have successively researched and developed many seismic isolation and shock absorption products. Among them, rubber seismic isolation bearings and disc springs have been widely used in the field of seismic isolation of buildings around subways. Thick rubber bearings and sandbag cushions can also effectively improve the comfort of buildings under vertical vibration. However, these seismic isolation methods or products can only reduce the vibration of subway roof buildings or buildings along the rail transit line due to the operation of trains, but cannot effectively reduce the impact of earthquakes and other external loads. Aware of this, in recent years, some scholars have proposed a three-dimensional seismic isolation and shock absorption system for the problem of shock absorption under the coupling of earthquakes and subway vibrations.

[0003] However, a prominent defect of the existing three-dimensional seismic isolation bearing is that the energy consumption mode is relatively single, resulting in low efficiency of shock absorption and energy consumption. Therefore, the present invention proposes to adopt multiple energy consumption mechanisms to improve it.

[0004] In view of this, the inventor provides a composite electromagnetic multi-dimensional seismic isolation device to solve the above technical problems. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art and propose a composite electromagnetic multi-dimensional seismic isolation device, which is provided with a vertical seismic isolation mechanism, a horizontal seismic isolation mechanism, and a plurality of first sleeve assemblies, second sleeve assemblies, support rods and rods that connect the vertical seismic isolation mechanism and the horizontal seismic isolation mechanism into an integral device. Under the up and down vibration, the vertical seismic isolation mechanism acts, and under the left and right vibration, the vertical seismic isolation mechanism and the horizontal seismic isolation mechanism act together, realizing multiple multi-dimensional shock absorption, and the device has multiple effects on vibration.

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

[0007] The present invention provides a composite electromagnetic multi-dimensional seismic isolation device, comprising a damping pad, support rods are arranged on the left and right sides of the damping pad, each of the support rods is sleeved with a first sleeve assembly and a second sleeve assembly that can slide up and down, and a vertical seismic isolation mechanism is arranged on the top of the damping pad and between the two support rods;

[0008] It also includes a first rod, a second rod, a third rod, a fourth rod, a fifth rod and a sixth rod, one end of the first rod is sleeved on the first sleeve assembly on the left side, and the other end can be slidably hinged on the vertical seismic isolation mechanism, one end of the second rod is sleeved on the first sleeve assembly on the right side, and the other end can be slidably hinged on the vertical seismic isolation mechanism; one end of the third rod and the fourth rod are jointly hinged on one side of the vertical seismic isolation mechanism, and the other ends are respectively sleeved on the first sleeve assembly and the second sleeve assembly on the left side; one end of the fifth rod and the sixth rod are jointly hinged on the opposite side of the vertical seismic isolation mechanism, and the other ends are respectively sleeved on the first sleeve assembly and the second sleeve assembly on the right side;

[0009] A horizontal seismic isolation mechanism is arranged between each support rod and the corresponding outer wall.

[0010] Further, the vertical seismic isolation mechanism includes a first magnetorheological elastomer, a first spring assembly, a first magnet, a first shock absorbing assembly, a second spring assembly, a second magnet, a third spring assembly and a second shock absorbing assembly which are sequentially arranged on the top of the damping pad from bottom to top;

[0011] The second shock absorbing assembly includes a second magnetorheological elastomer, both ends of which are connected to corresponding support rods through a first damper, and the first rod and the second rod are both hinged on the second magnetorheological elastomer.

[0012] Furthermore, a first slide groove and a second slide groove are provided on the bottom surface of the second magnetorheological elastomer, wherein a first elastic member and a first slider capable of moving along the length direction of the first slide groove are provided in the first slide groove, and the first rod member is hinged to the first slider; a second elastic member and a second slider capable of moving along the length direction of the second slide groove are provided in the second slide groove, and the second rod member is hinged to the second slider.

[0013] Further, the first shock absorbing assembly includes a cavity, one end of the third rod and the fourth rod are hinged together on one side of the cavity, and one end of the fifth rod and the sixth rod are hinged together on the other side of the cavity;

[0014] The second spring assembly is arranged at the top of the cavity, the first magnet is arranged at the bottom of the cavity, and the cavity is filled with viscous liquid.

[0015] Furthermore, the first shock absorbing assembly further includes a seventh rod, an eighth rod, and a first rotating shock absorbing member and a second rotating shock absorbing member disposed in the cavity;

[0016] One end of the seventh rod is hinged together with the first rod on the first slider, and the other end extends into the cavity and is hinged with a first nut; one end of the eighth rod is hinged together with the second rod on the second slider, and the other end extends into the cavity and is hinged with a second nut;

[0017] The first nut is installed on the first rotating shock absorber and can move back and forth along the axial direction of the first rotating shock absorber, thereby driving the first rotating shock absorber to rotate. The second nut is installed on the second rotating shock absorber and can move back and forth along the axial direction of the second rotating shock absorber, thereby driving the second rotating shock absorber to rotate.

[0018] Furthermore, the first rotation damping member and the second rotation damping member have the same structure;

[0019] The first rotating shock absorber includes a first screw rod, the top end of the first screw rod is connected to the top end of the cavity through a bearing, and the bottom end is connected to the bottom end of the cavity through a bearing. The first nut is installed on the first screw rod, and a limit block is arranged on the first screw rod above the first nut to limit the upward movement range of the first nut. A ring is connected to the first screw rod below the first nut, and a plurality of fan blades are connected to the outer circumference of the ring.

[0020] Furthermore, each of the horizontal seismic isolation mechanisms has the same structure;

[0021] Among them, the horizontal seismic isolation mechanism arranged between the support rod on the left and the outer wall on the left includes a ninth rod, a tenth rod, a fourth spring assembly and a plurality of second dampers, one end of the ninth rod and the tenth rod are hinged to one end of the fourth spring assembly, the other end of the ninth rod is sleeved on the first sleeve assembly on the left, the other end of the tenth rod is sleeved on the second sleeve assembly on the left, the other end of the fourth spring assembly is connected to the outer wall on the left, one end of each of the second dampers is connected to the support rod, and the other end is connected to the outer wall.

[0022] Further, the first sleeve assembly consists of a first sleeve and a plurality of first horizontal rods connected to the outer wall of the first sleeve; the first sleeve is sleeved on the support rod and can slide up and down along the support rod; one end of the first rod member, the third rod member and the ninth rod member on the left are all sleeved on the corresponding first horizontal rod of the first sleeve assembly on the left; one end of the second rod member, the fifth rod member and the ninth rod member on the right are all sleeved on the corresponding first horizontal rod of the first sleeve assembly on the right.

[0023] Furthermore, the second sleeve assembly consists of a second sleeve and a plurality of second horizontal rods connected to the outer wall of the second sleeve; the second sleeve is sleeved on the support rod and can slide up and down along the support rod, and is located below the first sleeve; one end of the fourth rod member and the tenth rod member on the left are sleeved on the corresponding second horizontal rod of the second sleeve assembly on the left; one end of the sixth rod member and the tenth rod member on the right are sleeved on the corresponding second horizontal rod of the second sleeve assembly on the right.

[0024] Furthermore, the inner surfaces of the first sleeve and the second sleeve are coated with nanocomposite materials to achieve the function of friction energy dissipation.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1) The present invention provides a composite electromagnetic multi-dimensional seismic isolation device, which comprises a vertical seismic isolation mechanism, a horizontal seismic isolation mechanism, and a plurality of first sleeve assemblies, a second sleeve assemblies, a support rod and a rod member that connect the vertical seismic isolation mechanism and the horizontal seismic isolation mechanism into an integral device. The vertical seismic isolation mechanism and the horizontal seismic isolation mechanism respectively effectively absorb and disperse the energy of vibration, reduce the impact of vibration on the building structure, and thus avoid the damage of vibration to the building structure. At the same time, the vertical seismic isolation mechanism and the horizontal seismic isolation mechanism both displace and rub with the support rod through a plurality of first sleeve assemblies and second sleeve assemblies to consume vibration.

[0027] Among them, multiple first sleeve assemblies, second sleeve assemblies, support rods and rods connect horizontal vibrations with vertical vibrations, so that the shock absorption in both horizontal and vertical directions can achieve a high level of shock absorption effect.

[0028] 2) The present invention provides a composite electromagnetic multi-dimensional seismic isolation device, including a vertical seismic isolation mechanism, which includes a first shock absorbing component, a viscous liquid, a first rotating shock absorbing part, a second rotating shock absorbing part, and a first nut sleeved on the first rotating shock absorbing part and a second nut sleeved on the second rotating shock absorbing part are arranged in the cavity of the first shock absorbing component. When vibrating, the first nut and the second nut move on the corresponding first rotating shock absorbing part and the second rotating shock absorbing part respectively, so that the first rotating shock absorbing part and the second rotating shock absorbing part rotate in the viscous liquid, converting the external vibration energy in all directions into local rotation, reducing the external vibration by friction energy consumption, and resetting by relying on its own strength, which greatly improves the space utilization rate and the shock absorption effect.

[0029] 3) The present invention provides a composite electromagnetic multi-dimensional seismic isolation device, the vertical seismic isolation mechanism includes a second shock absorbing component, the second shock absorbing component includes a magnetorheological elastomer, and dampers are respectively arranged at both ends of the magnetorheological elastomer. When vibration is transmitted from the outside, the stiffness of the magnetorheological elastomer material is adjusted by changing the magnetic field strength, thereby changing the natural frequency of the structure, avoiding the occurrence of resonance, and reducing the damage of vibration to the overall structure; the magnetorheological elastomer has solid-state characteristics, simple maintenance, and greatly reduces costs.

[0030] 4) The first sleeve and the second sleeve are coated with a new type of friction energy dissipation material, which plays a role in friction energy dissipation and converts external vibration energy into internal heat energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are incorporated in and constitute a part of this specification and, together with the description, serve to explain the principles of the present invention.

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0033] Figure 1 It is a structural schematic diagram of the composite electromagnetic multi-dimensional seismic isolation device of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the vertical seismic isolation mechanism of the composite type containing electromagnetic multiple multi-dimensional seismic isolation device of the present invention;

[0035] Figure 3 It is a schematic diagram of the structure of the second magnetorheological elastic body of the composite electromagnetic multi-dimensional seismic isolation device of the present invention;

[0036] Figure 4 It is a schematic structural diagram of the first sleeve assembly of the composite electromagnetic multi-dimensional seismic isolation device of the present invention.

[0037] Among them: 1 is the damping pad;

[0038] 2 is a support rod;

[0039] 3 is the first sleeve assembly; 3-1 is the first sleeve; 3-2 is the first horizontal rod;

[0040] 4 is a second sleeve assembly;

[0041] 5 is a vertical seismic isolation mechanism; 5-1 is a first magnetorheological elastomer; 5-2 is a first spring assembly; 5-3 is a first magnet; 5-4 is a first shock absorbing assembly; 5-5 is a second spring assembly; 5-6 is a second magnet; 5-7 is a third spring assembly; 5-8 is a second shock absorbing assembly;

[0042] 5-4 is the first shock absorbing component; 5-4-1 is the cavity; 5-4-2 is the seventh rod; 5-4-3 is the eighth rod; 5-4-4 is the first rotating shock absorbing component; 5-4-5 is the second rotating shock absorbing component; 5-4-6 is the first nut; 5-4-7 is the second nut;

[0043] 5-8 is the second shock absorbing assembly; 5-8-1 is the second magnetorheological elastomer; 5-8-2 is the first damper;

[0044] 5-8-1 is the second magnetorheological elastomer; 5-8-1-1 is the first slide slot; 5-8-1-2 is the second slide slot; 5-8-1-3 is the first elastic member; 5-8-1-4 is the first slider; 5-8-1-5 is the second elastic member;

[0045] 6 is a first rod;

[0046] 7 is a second rod;

[0047] 8 is a third rod;

[0048] 9 is a fourth rod;

[0049] 10 is a fifth rod;

[0050] 11 is a sixth rod;

[0051] 12 is a horizontal seismic isolation mechanism; 12-1 is a ninth rod; 12-2 is a tenth rod; 12-3 is a fourth spring assembly; 12-4 is a second damper. DETAILED DESCRIPTION

[0052] Here, exemplary embodiments will be described in detail, and the embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are only examples consistent with some aspects of the present invention described in detail in the appended claims.

[0053] See also Figure 1 to Figure 4 The embodiment of the present invention provides a composite electromagnetic multi-dimensional seismic isolation device, comprising a damping pad 1 and two support rods 2, the two support rods 2 are respectively inserted into the two sides of the damping pad 1 and fixed thereto, each support rod 2 is sleeved with a first sleeve assembly 3 and a second sleeve assembly 4 that can slide up and down, and a vertical seismic isolation mechanism 5 is arranged at the top of the damping pad 1 and between the two support rods 2;

[0054] It also includes a first rod 6, a second rod 7, a third rod 8, a fourth rod 9, a fifth rod 10 and a sixth rod 11, one end of the first rod 6 is sleeved on the first sleeve assembly 3 on the left, and the other end is hinged on the vertical seismic isolation mechanism 5 and can move horizontally, one end of the second rod 7 is sleeved on the first sleeve assembly 3 on the right, and the other end is hinged on the vertical seismic isolation mechanism 5 and can move horizontally; one end of the third rod 8 and the fourth rod 9 are hinged on one side of the vertical seismic isolation mechanism 5, and the other ends are respectively sleeved on the first sleeve assembly 3 and the second sleeve assembly 4 on the left; one end of the fifth rod 10 and the sixth rod 11 are hinged on the opposite side of the vertical seismic isolation mechanism 5, and the other ends are respectively sleeved on the first sleeve assembly 3 and the second sleeve assembly 4 on the right, and the third rod 8 and the fourth rod 9 are symmetrical with the fifth rod 10 and the sixth rod 11 along the vertical seismic isolation mechanism 5;

[0055] A horizontal seismic isolation mechanism 12 is provided between each support rod 2 and the corresponding outer wall.

[0056] In this embodiment, the damping pad 1 is a butyl rubber damping pad (PVC damping pad), which plays a supporting and energy absorbing role.

[0057] like Figure 2 As shown, the vertical seismic isolation mechanism 5 includes a first magnetorheological elastomer 5-1, a first spring assembly 5-2, a first magnet 5-3, a first shock absorbing assembly 5-4, a second spring assembly 5-5, a second magnet 5-6, a third spring assembly 5-7 and a second shock absorbing assembly 5-8, which are arranged on the top of the damping pad 1 from bottom to top; specifically, the first spring assembly 5-2, the second spring assembly 5-5 and the third spring assembly 5-7 are all multiple assembled compression springs.

[0058] The second shock absorbing assembly 5-8 includes a second magnetorheological elastomer 5-8-1, both ends of which are connected to the corresponding upper part of the support rod 2 through the first damper 5-8-2, and one end of the first rod 6 and the second rod 7 are hinged on the second magnetorheological elastomer 5-8-1.

[0059] like Figure 3 As shown, the bottom surface of the second magnetorheological elastomer 5-8-1 is provided with a first slide groove 5-8-1-1 and a second slide groove 5-8-1-2 at intervals, and the first slide groove 5-8-1-1 is provided with a first elastic member 5-8-1-3 and a first slider 5-8-1-4 capable of moving along the length direction of the first slide groove 5-8-1-1, and the first rod member 6 is hinged on the first slider 5-8-1-4; the second slide groove 5-8-1-2 is provided with a second elastic member 5-8-1-5 and a second slider capable of moving along the length direction of the second slide groove 5-8-1-2, and the second rod member 7 is hinged on the second slider.

[0060] Specifically, the first elastic member 5-8-1-3 and the second elastic member 5-8-1-5 are both rubber springs or torsion springs.

[0061] In this embodiment, the first shock absorbing assembly 5-4 includes a cavity 5-4-1, one end of the third rod 8 and the fourth rod 9 are hinged together on one side of the cavity 5-4-1, and one end of the fifth rod 10 and the sixth rod 11 are hinged together on the other side of the cavity 5-4-1;

[0062] The second spring assembly 5-5 is arranged at the top of the cavity 5-4-1, and the first magnet 5-3 is arranged at the bottom of the cavity 5-4-1. The cavity 5-4-1 is filled with a viscous liquid, and the viscous liquid can be silicone oil.

[0063] Furthermore, the first shock absorbing assembly 5-4 also includes a seventh rod 5-4-2, an eighth rod 5-4-3, and a first rotating shock absorbing member 5-4-4 and a second rotating shock absorbing member 5-4-5 spaced apart in the cavity 5-4-1;

[0064] One end of the seventh rod 5-4-2 is hinged together with the first rod 6 on the first slider 5-8-1-4, and the other end extends into the cavity 5-4-1 and is hinged to the first nut 5-4-6; one end of the eighth rod 5-4-3 is hinged together with the second rod 7 on the second slider, and the other end extends into the cavity 5-4-1 and is hinged to the second nut 5-4-7;

[0065] The first nut 5-4-6 is installed on the first rotating shock absorber 5-4-4, and can reciprocate along the axial direction of the first rotating shock absorber 5-4-4, thereby driving the first rotating shock absorber 5-4-4 to rotate. The second nut 5-4-7 is installed on the second rotating shock absorber 5-4-5, and can reciprocate along the axial direction of the second rotating shock absorber 5-4-5, thereby driving the second rotating shock absorber 5-4-5 to rotate.

[0066] It should be noted that the structures and movement principles of the first rotating shock absorber 5-4-4, the first nut 5-4-5, the second rotating shock absorber 5-4-5, and the second nut 5-4-7 are the same as those of the screw, and can be replaced by a ball screw, trapezoidal screw, or other screw that can slide up and down.

[0067] Furthermore, the first rotation damping member 5-4-4 and the second rotation damping member 5-4-5 have the same structure;

[0068] The first rotating damper 5-4-4 includes a first screw, the top of which is connected to the top of the cavity 5-4-1 through a bearing, and the bottom of which is connected to the bottom of the cavity 5-4-1 through a bearing. The first nut 5-4-6 is mounted on the first screw, and a limit block is arranged on the first screw above the first nut 5-4-6. A circular ring is connected to the first screw below the first nut 5-4-6, and a plurality of fan blades are evenly connected to the outer circumference of the circular ring. Specifically, the outer diameter of the limit block is less than or equal to the outer diameter of the first nut 5-4-6, and greater than the inner diameter of the first nut 5-4-6.

[0069] The structure of each horizontal seismic isolation mechanism 12 is the same;

[0070] Among them, the horizontal seismic isolation mechanism 12 arranged between the left support rod 2 and the left outer wall includes a ninth rod 12-1, a tenth rod 12-2, a fourth spring assembly 12-3 and a plurality of second dampers 12-4, one end of the ninth rod 12-1 and the tenth rod 12-2 are hinged at one end of the fourth spring assembly 12-3, the other end of the ninth rod 12-1 is sleeved on the first sleeve assembly 3 on the left, the other end of the tenth rod 12-2 is sleeved on the second sleeve assembly 4 on the left, the other end of the fourth spring assembly 12-3 is connected to the left outer wall, and one end of each of the second dampers 12-4 is connected to the support rod 2, and the other end is connected to the outer wall.

[0071] Specifically, the fourth spring assembly 12 - 3 is a rubber spring.

[0072] In this embodiment, the number of the plurality of second dampers 12 - 4 is two, and the ninth rod 12 - 1 , the tenth rod 12 - 2 , and the fourth spring assembly 12 - 3 are all located between the two second dampers 12 - 4 .

[0073] like Figure 4 As shown, the first sleeve assembly 3 is composed of a first sleeve 3-1 and two symmetrical first horizontal rods 3-2 connected to the outer wall of the first sleeve 3-1; the first sleeve 3-1 is sleeved on the support rod 2 and can slide up and down along the support rod 2; one end of the first rod member 6, the third rod member 8 and the ninth rod member 12-1 on the left are all sleeved on the corresponding first horizontal rod 3-2 of the first sleeve assembly 3 on the left; one end of the second rod member 7, the fifth rod member 10 and the ninth rod member 12-1 on the right are all sleeved on the corresponding first horizontal rod 3-2 of the first sleeve assembly 3 on the right.

[0074] The second sleeve assembly 4 consists of a second sleeve and two symmetrical second horizontal rods connected to the outer wall of the second sleeve; the second sleeve is sleeved on the support rod 2 and can slide up and down along the support rod 2, and is located below the first sleeve 3-1; the fourth rod member 9 and the tenth rod member 12-2 on the left are sleeved at one end on the corresponding second horizontal rod of the second sleeve assembly 4 on the left; the sixth rod member 11 and the tenth rod member 12-2 on the right are sleeved at one end on the corresponding second horizontal rod of the second sleeve assembly 4 on the right.

[0075] In this embodiment, the inner surfaces of the first sleeve 3-1 and the second sleeve are coated with nanocomposite materials, which play a role in friction energy dissipation and convert external vibration energy into internal heat energy. Specifically, the nanocomposite material is a nano-ceramic composite coating, and the material composition is: the nano-ceramic composite coating is usually mixed with nano-ceramic particles (such as alumina, silicon dioxide, etc.) and polymer resin base materials, curing agents, additives, etc. Nano-ceramic particles have extremely high hardness and wear resistance, and their unique nano effect makes the coating show excellent energy dissipation performance during the friction process. Working principle: Friction energy dissipation: When the coating surface is subjected to external friction or vibration, the nano-ceramic particles are embedded in the coating as hard points, forming microscopic concave-convex contact with the friction dual surface. This concave-convex contact will produce a large amount of microscopic shear and extrusion during the friction process, causing the molecules and atoms on the coating surface to move relative to their equilibrium positions. This movement will cause atomic lattice vibrations (phonons), which will cause energy loss. Energy conversion: As the friction continues, the atomic lattice vibrations on the coating surface will gradually intensify, forming sound waves and propagating inside the coating. These sound waves will collide and scatter with other molecules and atoms during propagation, eventually causing the energy to be dissipated in the form of heat. Therefore, nano-ceramic composite coatings can convert external mechanical vibration energy into internal heat energy and dissipate it effectively. Wear protection: In addition to excellent friction energy dissipation performance, nano-ceramic composite coatings also exhibit extremely high wear resistance. The hardness and wear resistance of nano-ceramic particles make the coating less prone to wear when subjected to friction, thereby extending the service life of the coating. Application advantages: High-efficiency energy consumption: Nano-ceramic composite coatings can efficiently convert external mechanical vibration energy into internal heat energy and dissipate it, thereby reducing energy waste and vibration noise of equipment. Wear protection: The high wear resistance of the coating enables it to maintain good performance for a long time in harsh working environments. Environmental protection and energy saving: Due to the reduction of energy waste and equipment wear, nano-ceramic composite coatings also have significant advantages in environmental protection and energy saving.

[0076] The working principle of the seismic isolation device of the present invention is as follows:

[0077] When the seismic isolation device is subjected to vertical downward vibration, the second shock absorbing component 5-8 is forced to move downward, and the first dampers 5-8-2 on both sides perform friction energy dissipation and shock reduction; the second shock absorbing component 5-8 compresses the third spring component 5-7 and approaches the second magnet 5-6, and the magnetic field becomes larger, causing the arrangement of particles in the second shock absorbing component 5-8 to change, generating a damping force to help with shock reduction; at the same time, the second shock absorbing component 5-8 moves downward, pushing the seventh rod 5-4-2 and the eighth rod 5-4-3 to move downward, and the seventh rod 5-4-2 and the eighth rod 5-4-3 further push the first nut 5-4-6 and the second nut 5-4-7 to move downward, and finally drive the first rotating shock absorbing component 5-4-4 and the second rotating shock absorbing component 5-4-5 to rotate, and the fan blades on the upper and lower sides thereof produce friction with the viscous liquid around them, hindering the rotation of the fan blades, thereby achieving the effect of energy dissipation and shock reduction. In addition, the seventh rod 5-4-2 and the eighth rod 5-4-3 move downward, driving the first rod 6 and the second rod 7 to move upward, and then pulling the left and right sides 3 to move upward. During the upward movement, the first rod 6 and the second rod 7 and the support rod 2 respectively consume friction energy, and at the same time drive the ninth rod 12-1, the tenth rod 12-2, the third rod 8, the fourth rod 9, the fifth rod 10, and the sixth rod 11 to move upward. The tenth rod 12-2 on the left and right sides drives the corresponding second sleeve assembly 4 to move upward, and the second sleeve assembly 4 on the left and right sides and the support rod 2 respectively consume friction energy. After the vibration ends, all spring assemblies play the self-reset function of the device.

[0078] When the seismic isolation device is subjected to vertical upward vibration, the damping pad 1 transmits the vibration upward, and the first magnetorheological elastomer 5-1 compresses the first spring assembly 5-2 and approaches the first magnet 5-3. When the first magnet 5-3 approaches the first magnetorheological elastomer 5-1, the magnetic field becomes larger, causing the arrangement of particles in the first magnetorheological elastomer 5-1 to change and generate a damping force to help reduce shock; the first shock absorbing assembly 5-4 moves upward, driving the first sleeve assembly 3 and the second sleeve assembly 4 on the left and right sides to move upward. In this process, the first sleeve assembly 3 and the second sleeve assembly 4 are both in contact with the support Rod 2 dissipates energy by friction, and the first rod 6 and the second rod 7 push the first slider 5-8-1-4 and the second slider to move right and left, and the seventh rod 5-4-2 and the eighth rod 5-4-3 move downward, and the seventh rod 5-4-2 and the eighth rod 5-4-3 further push the first nut 5-4-6 and the second nut 5-4-7 to move downward, and finally drive the first rotating shock absorber 5-4-4 and the second rotating shock absorber 5-4-5 to rotate, and the fan blades on the upper and lower sides generate friction with the surrounding viscous liquid, hindering the rotation of the fan blades, achieving the effect of energy dissipation and shock absorption. After the vibration ends, all spring components play the self-reset function of the device.

[0079] When the seismic isolation device is subjected to vibration from left to right, the right outer wall moves relatively to the left, and all the second dampers 12-4 perform shock absorption. The ninth rod 12-1 and the tenth rod 12-2 on the left side respectively push the first sleeve assembly 3 and the second sleeve assembly 4 on the corresponding side upward and downward to dissipate energy. The first rod 6 causes the seventh rod 5-4-2 to move downward through the first slide groove 5-8-1-1, and the seventh rod 5-4-2 further pushes the first nut 5-4-6 to move downward, and finally drives the first rotating shock absorber 5-4-4 to rotate. The fan blades on the upper and lower sides generate friction with the viscous liquid around them, which hinders the rotation of the fan blades and achieves the effect of energy dissipation and shock absorption. The first sleeve assembly 3 and the second sleeve assembly 4 on the left side move upward and downward, driving the third rod 8 and the fourth rod 9 to move, and then pulling the cavity 5-4-1 to the left. The cavity 5-4-1 moves to the left, and the fifth rod 10 and the sixth rod 11 at the other end also move to the left, and finally pull the first sleeve assembly 3 and the second sleeve assembly 4 on the right side to move upward and downward to consume energy by friction with the support rod 2. The first sleeve assembly 3 and the second sleeve assembly 4 on the right side move upward and downward, causing the outer wall to move to the left, and the second damper 12-4 performs shock absorption. The first sleeve assembly 3 on the right side moves downward, driving one end of the eighth rod 5-4-3 to compress the second elastic member 5-8-1-5 to the right in the second slide groove 5-8-1-2, and the other end drives the second nut 5-4-7 to move upward, and finally drives the second rotating shock-absorbing member 5-4-5 to rotate, and the fan blades on the upper and lower sides thereof produce friction with the surrounding viscous liquid, hindering the rotation of the fan blades, and achieving the effect of energy consumption and shock absorption. After the vibration ends, all spring components play the self-reset function of the device.

[0080] When the seismic isolation device is subjected to vibration from right to left, the same effect occurs as when the vibration is from left to right.

[0081] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention.

[0082] It should be understood that the present invention is not limited to what has been described above and that various modifications and changes may be made without departing from its scope. The scope of the present invention is limited only by the appended claims.

Claims

1. A composite electromagnetic multi-dimensional seismic isolation device, characterized in that: The invention comprises a damping pad (1), wherein support rods (2) are arranged on the left and right sides of the damping pad (1), each of the support rods (2) is sleeved with a first sleeve assembly (3) and a second sleeve assembly (4) which can slide up and down, and a vertical seismic isolation mechanism (5) is arranged at the top of the damping pad (1) and between the two support rods (2); It also comprises a first rod (6), a second rod (7), a third rod (8), a fourth rod (9), a fifth rod (10) and a sixth rod (11); one end of the first rod (6) is sleeved on the first sleeve assembly (3) on the left side, and the other end can be slidably hinged on the vertical seismic isolation mechanism (5); one end of the second rod (7) is sleeved on the first sleeve assembly (3) on the right side, and the other end can be slidably hinged on the vertical seismic isolation mechanism (5); one end of the third rod (8) and the fourth rod (9) are hinged together on one side of the vertical seismic isolation mechanism (5), and the other ends are respectively sleeved on the first sleeve assembly (3) and the second sleeve assembly (4) on the left side; one end of the fifth rod (10) and the sixth rod (11) are hinged together on the opposite side of the vertical seismic isolation mechanism (5), and the other ends are respectively sleeved on the first sleeve assembly (3) and the second sleeve assembly (4) on the right side; A horizontal seismic isolation mechanism (12) is provided between each support rod (2) and the corresponding outer wall.

2. The composite electromagnetic multi-dimensional seismic isolation device according to claim 1 is characterized in that: The vertical seismic isolation mechanism (5) comprises a first magnetorheological elastomer (5-1), a first spring assembly (5-2), a first magnet (5-3), a first shock absorbing assembly (5-4), a second spring assembly (5-5), a second magnet (5-6), a third spring assembly (5-7) and a second shock absorbing assembly (5-8) which are arranged in sequence from bottom to top on the top of the damping pad (1); The second shock absorbing assembly (5-8) comprises a second magnetorheological elastomer (5-8-1), both ends of the second magnetorheological elastomer (5-8-1) are connected to the corresponding support rod (2) via a first damper (5-8-2), and the first rod (6) and the second rod (7) are both hinged on the second magnetorheological elastomer (5-8-1).

3. The composite electromagnetic multi-dimensional seismic isolation device according to claim 2 is characterized in that: The bottom surface of the second magnetorheological elastomer (5-8-1) is provided with a first slide groove (5-8-1-1) and a second slide groove (5-8-1-2) at intervals, and the first slide groove (5-8-1-1) is provided with a first elastic member (5-8-1-3) and a first slider (5-8-1-4) capable of moving along the length direction of the first slide groove (5-8-1-1), and the first rod member (6) is hinged on the first slider (5-8-1-4); the second slide groove (5-8-1-2) is provided with a second elastic member (5-8-1-5) and a second slider capable of moving along the length direction of the second slide groove (5-8-1-2), and the second rod member (7) is hinged on the second slider.

4. The composite electromagnetic multi-dimensional seismic isolation device according to claim 2 is characterized in that: The first shock absorbing assembly (5-4) comprises a cavity (5-4-1), one end of the third rod (8) and the fourth rod (9) are hinged together on one side of the cavity (5-4-1), and one end of the fifth rod (10) and the sixth rod (11) are hinged together on the other side of the cavity (5-4-1); The second spring component (5-5) is arranged at the top of the cavity (5-4-1), the first magnet (5-3) is arranged at the bottom of the cavity (5-4-1), and the cavity (5-4-1) is filled with viscous liquid.

5. The composite electromagnetic multi-dimensional seismic isolation device according to claim 4 is characterized in that: The first shock absorbing assembly (5-4) further comprises a seventh rod (5-4-2), an eighth rod (5-4-3), and a first rotating shock absorbing member (5-4-4) and a second rotating shock absorbing member (5-4-5) arranged in the cavity (5-4-1); One end of the seventh rod (5-4-2) is hinged together with the first rod (6) on the first slider (5-8-1-4), and the other end extends into the cavity (5-4-1) and is hinged to the first nut (5-4-6); one end of the eighth rod (5-4-3) is hinged together with the second rod (7) on the second slider, and the other end extends into the cavity (5-4-1) and is hinged to the second nut (5-4-7); The first nut (5-4-6) is mounted on the first rotating shock absorbing member (5-4-4) and is capable of reciprocating along the axial direction of the first rotating shock absorbing member (5-4-4), thereby driving the first rotating shock absorbing member (5-4-4) to rotate; the second nut (5-4-7) is mounted on the second rotating shock absorbing member (5-4-5) and is capable of reciprocating along the axial direction of the second rotating shock absorbing member (5-4-5), thereby driving the second rotating shock absorbing member (5-4-5) to rotate.

6. The composite electromagnetic multi-dimensional seismic isolation device according to claim 5 is characterized in that: The first rotation damping member (5-4-4) and the second rotation damping member (5-4-5) have the same structure; The first rotating damping member (5-4-4) comprises a first screw rod, the top end of which is connected to the top end of the cavity (5-4-1) via a bearing, and the bottom end of which is connected to the bottom end of the cavity (5-4-1) via a bearing, the first nut (5-4-6) being mounted on the first screw rod, and a limit block being arranged on the first screw rod above the first nut (5-4-6), and a circular ring being connected to the first screw rod below the first nut (5-4-6), and a plurality of fan blades being connected to the outer circumference of the circular ring.

7. The composite electromagnetic multi-dimensional seismic isolation device according to claim 1 is characterized in that: Each of the horizontal seismic isolation mechanisms (12) has the same structure; The horizontal seismic isolation mechanism (12) arranged between the left support rod (2) and the left outer wall comprises a ninth rod (12-1), a tenth rod (12-2), a fourth spring assembly (12-3) and a plurality of second dampers (12-4); one end of the ninth rod (12-1) and the tenth rod (12-2) are hinged to one end of the fourth spring assembly (12-3); the other end of the ninth rod (12-1) is sleeved on the first sleeve assembly (3) on the left; the other end of the tenth rod (12-2) is sleeved on the second sleeve assembly (4) on the left; the other end of the fourth spring assembly (12-3) is connected to the left outer wall; one end of each of the second dampers (12-4) is connected to the support rod (2) and the other end is connected to the outer wall.

8. The composite electromagnetic multi-dimensional seismic isolation device according to claim 7 is characterized in that: The first sleeve assembly (3) is composed of a first sleeve (3-1) and a plurality of first horizontal rods (3-2) connected to the outer wall of the first sleeve (3-1); the first sleeve (3-1) is sleeved on the support rod (2) and can slide up and down along the support rod (2); one end of the first rod (6), the third rod (8) and the ninth rod (12-1) on the left side are sleeved on the corresponding first horizontal rod (3-2) of the first sleeve assembly (3) on the left side; one end of the second rod (7), the fifth rod (10) and the ninth rod (12-1) on the right side are sleeved on the corresponding first horizontal rod (3-2) of the first sleeve assembly (3) on the right side.

9. The composite electromagnetic multi-dimensional seismic isolation device according to claim 8 is characterized in that: The second sleeve assembly (4) is composed of a second sleeve and a plurality of second horizontal rods connected to the outer wall of the second sleeve; the second sleeve is sleeved on the support rod (2) and can slide up and down along the support rod (2), and is located below the first sleeve (3-1); one end of the fourth rod (9) and the tenth rod (12-2) on the left are sleeved on the corresponding second horizontal rod of the second sleeve assembly (4) on the left; one end of the sixth rod (11) and the tenth rod (12-2) on the right are sleeved on the corresponding second horizontal rod of the second sleeve assembly (4) on the right.

10. The composite electromagnetic multi-dimensional seismic isolation device according to claim 9 is characterized in that: The inner surfaces of the first sleeve (3-1) and the second sleeve are coated with nanocomposite materials.

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