A high-damping isolation device with a limiting function and its usage method

Abstract

The present invention discloses a high-damping seismic isolation device with a limiting function, comprising a lower pier and an upper column distributed from bottom to top, a seismic isolation support arranged between the lower pier and the upper column, a second outer ring sleeve fixedly arranged on the outer side of the lower end of the lower pier, an upper support structure fixedly arranged on the outer side of the lower end of the upper column, a plurality of damping and buffering components evenly distributed with the pier as the center for damping and buffering the vibration displacement of the upper column are arranged on the outer side of the lower pier, and a plurality of sliding limiting components evenly distributed with the pier as the center for limiting the vibration displacement of the upper column are also arranged on the outer side of the lower pier; the vibration degree and the sliding degree can be detected by the vibration displacement detection component, and the displacement adjustment of the damping structure can be realized in conjunction with the PLC controller and the damping and buffering component to ensure that the sliding damping force is maintained at a certain value.

Description

Technical Field

[0001] The present invention relates to the technical field of seismic isolation, and in particular to a high-damping seismic isolation device with a limiting function and a method of using the same. Background Art

[0002] Earthquake disasters mainly come from forced structural vibrations caused by ground movement. The basic principle of seismic isolation is to install seismic isolation devices to reduce the horizontal stiffness of the structure, extend the natural vibration period of the structure, and increase the structural damping, thereby effectively reducing the seismic response of the structure. Seismic isolation is an earlier developed passive control measure. The principle of seismic isolation technology is to install seismic isolation bearings between the structure itself and the ground or the lower supporting structure, thereby reducing the dynamic amplification effect of the structural earthquake.

[0003] Application number CN201120568468.2 discloses a limitable sliding isolation device comprising a lower friction sliding plate having a concave longitudinal cross-section, an intermediate sliding block disposed within a groove of the lower friction sliding plate, and an upper friction sliding plate having a concave longitudinal cross-section disposed above the intermediate sliding block, wherein the concave surface of the upper friction sliding plate faces the concave surface of the lower friction sliding plate, and the intermediate sliding block is disposed within the groove of the upper friction sliding plate. A first coating is applied between the upper friction sliding plate and the intermediate sliding block, and a second coating is applied between the lower friction sliding plate and the intermediate sliding block.

[0004] A tensile-limited seismic isolation bearing with application number CN201810102746.1 includes a bearing body, an upper connecting plate, a lower connecting plate, and a tensile-limiting device; the upper connecting plate and the lower connecting plate are fixed to the upper and lower ends of the bearing body, and tensile-limiting devices are respectively provided on all four sides of the bearing body; the tensile-limiting device includes two mutually orthogonal sliding limit mechanisms, and the two sliding limit mechanisms are connected by a flexible material. The tensile-limiting device is provided on all four sides of the bearing body and can slide freely along the X and Y axes without affecting the horizontal seismic isolation performance of the bearing body, and limits the maximum deformation of the bearing body in the X and Y axis directions. The flexible material bears the tensile force on the bearing body in the Z axis direction, effectively enhancing the tensile stiffness of the bearing in the Z direction.

[0005] In the above-mentioned prior art, it is impossible to adjust the displacement of the damping structure according to the magnitude of the vibration and the degree of slippage, and it is impossible to ensure that the magnitude of the slippage damping force remains at a certain value, which easily causes damage to the damping buffer structure. Summary of the Invention

[0006] (1) Technical problems solved

[0007] The purpose of the present invention is to provide a high-damping seismic isolation device with a limiting function and a method of using the same in order to solve the above problems.

[0008] (2) Technical solution

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] The present invention provides a high-damping seismic isolation device with a limiting function, comprising a lower pier and an upper column distributed from bottom to top, a seismic isolation support provided between the lower pier and the upper column, a second outer ring sleeve fixedly provided on the outer side of the lower end of the lower pier, an upper support structure fixedly provided on the outer side of the lower end of the upper column, a plurality of damping and buffering components evenly distributed around the lower pier for damping and buffering the vibration displacement of the upper column are provided on the outer side of the lower pier, and a plurality of sliding limiting components evenly distributed around the lower pier for limiting the vibration displacement of the upper column are also provided on the outer side of the lower pier;

[0011] A vibration displacement detection component for detecting the displacement of the upper column is provided between each damping buffer component and the upper column, and the output end of the vibration displacement detection component is electrically connected to the input end of the PLC controller.

[0012] Furthermore, the upper and lower ends of the seismic isolation bearing are respectively provided with an upper mounting plate and a lower mounting plate, the upper mounting plate is fixedly connected to the lower side of the upper column by bolts, and the lower mounting plate is fixedly connected to the upper side of the lower pier by bolts, and the outer side of the lower mounting plate is fixedly provided with a first outer ring sleeve which is sleeved on the outer side of the upper end of the lower pier.

[0013] Furthermore, the damping buffer assembly is provided with four damping buffer assemblies uniformly distributed at equal angles with the lower pier as the center, and the four damping buffer assemblies are respectively arranged at the outer corners of the upper column. The damping buffer assembly includes a turning rod and a support rod. The upper end of the turning rod is fixedly connected with a V-shaped elastic buffer plate, and the two ends of the V-shaped opening of the elastic buffer plate are rotatably connected with abutment rollers. The turning rod is hinged to each other with one end close to the elastic buffer plate and the upper end of the support rod, and the lower end of the support rod is fixedly connected to the outer wall of the first outer ring sleeve. An angle driving structure for driving the turning rod to rotate under the support of the support rod is provided between the lower end of the turning rod and the outer wall of the second outer ring sleeve.

[0014] Furthermore, the angle driving structure includes a first hydraulic cylinder, the tail end of the first hydraulic cylinder is hinged to the outer wall of the second outer ring sleeve through a first hinge seat, the push rod head end of the first hydraulic cylinder is fixedly connected to a block, the push rod of the first hydraulic cylinder is slidingly connected to a sleeve near the outer side of one end of the block, the outer wall of the sleeve is hinged to each other with the lower end of the rotating pressure rod through a second hinge seat, and a limit shoulder is fixedly provided on the push rod of the first hydraulic cylinder near the outer side of one end of the sleeve, and a first spring is nested on the outer side of the push rod of the first hydraulic cylinder between the sleeve and the limit shoulder, and the two ends of the first spring are fixedly connected to the sleeve and the limit shoulder respectively, and the output end of the PLC controller is electrically connected to the input end of the first hydraulic cylinder.

[0015] Furthermore, the sliding limit assembly includes a vertical rod, the lower end of the vertical rod is fixedly connected to the outer wall of the second outer ring sleeve through a lower support rod, the vertical rod and the outer wall of the first outer ring sleeve are fixedly connected to each other with an upper support rod, the upper end of the vertical rod is fixedly connected to a support plate, and the upper side of the support plate is fixedly provided with a second hydraulic cylinder, the push rod head end of the second hydraulic cylinder faces the upper column and is fixedly connected to the limiting push plate, the lower support rod, the vertical rod and the support plate are integrally formed in a Z shape, and the upper side of the support plate is fixedly provided with a rear support rod for supporting and limiting the tail end of the second hydraulic cylinder, the support plate and the vertical rod are fixedly connected to each other with a reinforcing rod by bolts, and the output end of the PLC controller is electrically connected to the input end of the second hydraulic cylinder.

[0016] Furthermore, the vibration displacement detection assembly includes a fixed block, which is fixedly connected to the inner corner of the elastic buffer plate by bolts. The side of the fixed block facing the upper column is connected to a pressure block through a second spring. The shape of the pressure block is a right triangle. A pressure sensor is provided at the connection between the second spring and the fixed block. The output end of the pressure sensor is electrically connected to the input end of the PLC controller.

[0017] Furthermore, the upper bracket structure includes a third outer ring sleeve that is sleeved on the outside of the upper column. The outer shape of the third outer ring sleeve is a rectangle that is consistent with the cross-sectional shape of the upper column. The lower side of the four corners of the third outer ring sleeve is fixedly connected to the corner support rods by bolts. The lower end of the corner support rods is fixedly connected to two connecting plates, and each connecting plate is fixedly connected to the upper mounting plate by bolts. The corner support rods and connecting plates are integrally formed with each other.

[0018] Furthermore, each of the damping and buffering components is also provided with a vibration position warning light corresponding to the vibration displacement detection component, and the output end of the PLC controller is electrically connected to the input end of the vibration position warning light.

[0019] A method for using a high-damping seismic isolation device with a limiting function comprises the following steps:

[0020] S1: First, cast the lower pier. After the casting of the lower pier is completed, the second outer ring is installed downward from the upper end of the lower pier so that the second outer ring falls on the bottom of the lower pier and is fixed;

[0021] S2: The seismic isolation bearing is fixedly installed on the upper side of the lower pier through the lower mounting plate, and then the upper bracket structure is movably sleeved on the outer side of the seismic isolation bearing. At this time, the upper column is cast;

[0022] S3: After the upper column is cast, the upper mounting plate is fixedly connected to the lower side of the upper column by bolts, the upper support structure is moved upward to the outside of the upper column, and then the upper support structure and the upper mounting plate are fixedly connected to each other;

[0023] S4: Install damping and buffering components at the four corners of the lower pier and the upper column, and fix the damping and buffering components on the second outer ring sleeve. At this time, the second spring of the vibration displacement detection component is in a compressed state, and the pressure sensor is at a certain value;

[0024] S5: When an earthquake occurs, the lower pier and the upper column undergo relative displacement under the seismic isolation buffering of the seismic isolation support. The V-shaped elastic buffer plate undergoes elastic deformation to achieve buffering for the upper column. The pressure value detected by the pressure sensor in the corresponding direction changes and transmits an electrical signal to the PLC controller. The PLC controller controls the push rod of the first hydraulic cylinder in that direction to retract, thereby increasing the buffering stroke of the elastic buffer plate.

[0025] S6: When the sliding distance of the upper column reaches a certain value, the sliding limit assembly is used to limit the displacement of the upper column and after vibration, the second hydraulic cylinder of the sliding limit assembly pushes the limit push plate to reset the upper column.

[0026] (3) Beneficial effects

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. The vibration displacement detection component can detect the magnitude of vibration and slippage, and cooperate with the PLC controller and damping buffer component to realize the displacement adjustment of the damping structure to ensure that the magnitude of the slip damping force is maintained at a certain value;

[0029] 2. The vibration displacement detection component and the vibration direction warning light can play two roles in combination. The first role is to light up the warning light in each vibration displacement direction when vibration occurs, so that the staff can observe the direction of vibration displacement intuitively. The second role is to indicate the displacement direction of the upper column after vibration occurs, and the sliding limit component, PLC controller and vibration displacement detection component cooperate to realize the automatic reset of the upper column.

[0030] 3. The sliding limit assembly is used to limit the displacement of the upper column and after vibration, the second hydraulic cylinder of the sliding limit assembly pushes the limit push plate to reset the upper column. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1It is a schematic diagram of the main structure of the present invention;

[0033] Figure 2 This invention Figure 1 Schematic diagram of the top view structure;

[0034] Figure 3 This invention Figure 1 Schematic diagram of the three-dimensional structure;

[0035] Figure 4 This invention Figure 1 A schematic diagram of the three-dimensional structure in another direction;

[0036] Figure 5 This invention Figure 2 A local enlarged structural diagram of point A;

[0037] Figure 6 This invention Figure 3 A schematic diagram of the partially enlarged structure at point B;

[0038] Figure 7 This invention Figure 4 Schematic diagram of the local enlarged structure at point C.

[0039] Description of the accompanying drawings: 1. lower buttress; 2. upper column; 3. seismic isolation bearing; 3a. first outer ring; 3b. upper mounting plate; 3c. lower mounting plate; 4. damping and buffering assembly; 401. first hydraulic cylinder; 402. rotating pressure rod; 403. supporting rod; 404. elastic buffer plate; 405. abutting roller; 406. first articulated seat; 407. sleeve; 408. stopper; 409. second articulated seat; 410. limit stop shoulder; 411. first spring; 5. sliding limit assembly; 501. Lower support rod; 502. Vertical rod; 503. Reinforcing rod; 504. Upper support rod; 505. Support plate; 506. Second hydraulic cylinder; 507. Rear support rod; 508. Limit push plate; 6. PLC controller; 7. Vibration displacement detection assembly; 7a. Fixed block; 7b. Pressure sensor; 7c. Second spring; 7d. Pressure block; 8. Vibration direction warning light; 9. Second outer ring sleeve; 10. Upper bracket structure; 10a. Angle support rod; 10b. Third outer ring sleeve; 10c. Connecting plate. DETAILED DESCRIPTION

[0040] To make the purpose, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0041] See also Figure 1-7As shown, the present invention provides a high-damping seismic isolation device with a limiting function, including a lower pier 1 and an upper column 2 distributed from bottom to top. In actual application, the cross-sectional shapes of the lower pier 1 and the upper column 2 are both square. An isolation support 3 is provided between the lower pier 1 and the upper column 2. The isolation support 3 adopts a rubber isolation support. The rubber isolation support is made of multiple layers of steel plates and rubber alternately stacked. The steel plate is used as a reinforcing material for the rubber support, which changes the characteristic of the rubber body having a small vertical stiffness, so that it can reduce horizontal earthquake effects and withstand large vertical loads. Since rubber is an elastic body with insufficient energy dissipation, a lead core is added to the support. The lead core rubber isolation support can bear the entire upper The vertical load of the lower structure is extended, and a certain amount of damping is provided, so that the seismic force of the lower structure, i.e., the pier and the abutment, is redistributed, and the displacement of the seismic isolation layer will not be large, which has a good seismic isolation effect. This is a prior art and is well known to those skilled in the art. A second outer ring sleeve 9 is fixedly provided on the outer side of the lower end of the lower pier 1, and an upper support structure 10 is fixedly provided on the outer side of the lower end of the upper column 2. A plurality of damping and buffering components 4 for damping and buffering the vibration displacement of the upper column 2 are evenly distributed around the lower pier 1, and a plurality of sliding limit components 5 for limiting the vibration displacement of the upper column 2 are also evenly distributed around the lower pier 1.

[0042] A vibration displacement detection component 7 for detecting the displacement of the upper column 2 is provided between each damping buffer component 4 and the upper column 2 , and the output end of the vibration displacement detection component 7 is electrically connected to the input end of the PLC controller 6 .

[0043] The upper and lower ends of the seismic isolation bearing 3 are respectively provided with an upper mounting plate 3b and a lower mounting plate 3c. The upper mounting plate 3b is fixedly connected to the lower side of the upper column 2 by bolts, and the lower mounting plate 3c is fixedly connected to the upper side of the lower pier 1 by bolts. The outer side of the lower mounting plate 3c is fixedly provided with a first outer ring sleeve 3a which is sleeved on the outer side of the upper end of the lower pier 1.

[0044] The damping and buffering components 4 are provided with four equiangularly distributed components with the lower pier 1 as the center. The four damping and buffering components 4 are respectively arranged at the outer corners of the upper column 2. The damping and buffering components 4 include a turning rod 402 and a support rod 403. The upper end of the turning rod 402 is fixedly connected to a V-shaped elastic buffer plate 404. The two ends of the V-shaped opening of the elastic buffer plate 404 are rotatably connected to abutment rollers 405. The turning rod 402 is hinged to the upper end of the support rod 403 near one end of the elastic buffer plate 404. The lower end of the support rod 403 is fixedly connected to the outer wall of the first outer ring sleeve 3a. An angle driving structure for driving the turning rod 402 to rotate under the support of the support rod 403 is provided between the lower end of the turning rod 402 and the outer wall of the second outer ring sleeve 9. Through the above-mentioned specific structural design, the turning rod 402 and the support rod 403 can cooperate to form a lever structure, so that when the angle driving structure applies a very small force, the elastic buffer plate 404 can achieve a large force support on the upper column 2.

[0045] The angle driving structure includes a first hydraulic cylinder 401, the tail end of the first hydraulic cylinder 401 is hinged to the outer wall of the second outer ring sleeve 9 through a first hinge seat 406, and the push rod head end of the first hydraulic cylinder 401 is fixedly connected to a block 408, and the push rod of the first hydraulic cylinder 401 is slidingly connected to the outer side of one end of the push rod close to the block 408. The outer wall of the sleeve 407 is hinged to each other with the lower end of the rotating pressure rod 402 through a second hinge seat 409, and a limit shoulder 410 is fixedly provided on the outer side of the push rod of the first hydraulic cylinder 401 close to one end of the sleeve 407. A first spring 411 is nested on the outer side of the push rod of the first hydraulic cylinder 401 between the sleeve 407 and the limit shoulder 410. The two ends of the first spring 411 are fixedly connected to the sleeve 407 and the limit shoulder 410 respectively, and the output end of the PLC controller 6 is electrically connected to the input end of the first hydraulic cylinder 401.

[0046] See the instructions attached Figure 1 、 2, 3, 4 and 6, the sliding limit assembly 5 includes a vertical rod 502, the lower end of the vertical rod 502 is fixedly connected to the outer wall of the second outer ring sleeve 9 through the lower support rod 501, the vertical rod 502 and the outer wall of the first outer ring sleeve 3a are fixedly connected to each other with an upper support rod 504, the upper end of the vertical rod 502 is fixedly connected to a support plate 505, and a second hydraulic cylinder 506 is fixedly provided on the upper side of the support plate 505, the push rod head end of the second hydraulic cylinder 506 faces the upper column 2 and is fixedly connected to the limited push plate 508, the lower support rod 501, the vertical pole 502 and the support plate 505 are integrally formed in a Z shape. A rear support rod 507 for supporting and limiting the tail end of the second hydraulic cylinder 506 is fixedly provided on the upper side of the support plate 505. The rear support rod 507 can provide reverse thrust support for the tail end of the second hydraulic cylinder 506, thereby improving the stability when limiting the upper column 2. The support plate 505 and the vertical pole 502 are fixedly connected to each other by bolts with a reinforcing rod 503, and the output end of the PLC controller 6 is electrically connected to the input end of the second hydraulic cylinder 506. In actual application, the extension and retraction of the push rod of the second hydraulic cylinder 506 can drive the limit push plate 508 to move, thereby adjusting the distance between the limit push plate 508 and the upper column 2, thereby realizing the limit adjustment of the upper column 2 with different maximum displacements, and after the earthquake, the second hydraulic cylinder 506 and the limit push plate 508 can cooperate to realize the push and reset of the upper column 2. The cooperation of the lower support rod 501, the vertical rod 502, the reinforcing rod 503, the upper support rod 504, the support plate 505 and the rear support rod 507 can realize the structural stability when limiting the sliding of the upper column 2, and avoid damage caused by excessive impact force.

[0047] See the instructions attached Figure 2 and 5As shown, the vibration displacement detection assembly 7 includes a fixed block 7a, which is fixedly connected to the inner corner of the elastic buffer plate 404 by bolts. The side of the fixed block 7a facing the upper column 2 is connected to a pressure block 7d through a second spring 7c. The shape of the pressure block 7d is a right triangle. A pressure sensor 7b is provided at the connection between the second spring 7c and the fixed block 7a. The output end of the pressure sensor 7b is electrically connected to the input end of the PLC controller 6. Through the above-mentioned specific structural design, when the upper column 2 slides in a certain direction, it will press the vibration displacement detection component 7 in that direction. At this time, the second spring 7c of the vibration displacement detection component 7 in that direction is compressed and deformed, thereby pressurizing the pressure sensor 7b corresponding to the second spring 7c. After the detection pressure of the pressure sensor 7b reaches a certain value, the electrical signal is transmitted to the PLC controller 6, and the PLC controller 6 adjusts the first hydraulic cylinder 401 of the damping buffer component 4 to drive the vibration displacement detection component 7 to move in the direction away from the upper column 2, so that the buffering damping force of the damping buffer component 4 on the upper column 2 is always maintained within a certain value range, avoiding the elastic buffer plate 40 caused by the excessive sliding distance of the upper column 2. 4 and the vibration displacement detection component 7 cause irreversible damage, and after the upper column 2 slides to a certain value, the PLC controller 6 controls the sliding limit component 5 to limit the upper column 2. In actual application, the outer shape of the pressure block 7d is a right triangle. When the upper column 2 vibrates and displaces arbitrarily in the horizontal direction, the pressure block 7d can always maintain a fit and positioning with the corner of the third outer ring sleeve 10b, which prevents it from falling off and ensures the stability of the detection. The pressure block 7d and the fixed block 7a are directly connected by the second spring 7c, which adopts a flexible connection method. It can not only transmit pressure changes to the pressure sensor 7b, but also avoid rigid breakage damage when the upper column 2 vibrates and displaces arbitrarily in the horizontal direction.

[0048] See the instructions attached Figure 3 、 5As shown in Figure 7, the upper bracket structure 10 includes a third outer ring sleeve 10b which is sleeved on the outside of the upper column 2. The outer shape of the third outer ring sleeve 10b is a rectangle with the same cross-sectional shape as the upper column 2. Further, the outer shape of the third outer ring sleeve 10b is a square with the same cross-sectional shape as the upper column 2. The lower sides of the four corners of the third outer ring sleeve 10b are fixedly connected with corner support rods 10a by bolts. Further, the cross-sectional shape of the corner support rods 10a is a right triangle. The corner support rods 10a and the outer corners of the upper column 2 are fitted and connected to each other. The lower ends of the corner support rods 10a are fixedly connected to two connecting plates 10c. Each connecting plate 10c is fixedly connected to the upper mounting plate 3b by bolts. The corner support rods 10a and the connecting plates 10c are integrally formed with each other. In actual applications, the upper support structure 10 is used to cooperate with the damping and buffering assembly 4 to achieve buffering and limiting of the upper column 2 when it vibrates in earthquakes below magnitude 3, thereby reducing the vibration of the building under low vibrations. The third outer ring sleeve 10b abuts against the abutting roller 405, which can reduce the friction force of the elastic buffer plate 404 during expansion and deformation, avoids the wear of the elastic buffer plate 404 under direct contact with the outer surface of the upper column 2, and prevents the V-shaped opening of the elastic buffer plate 404 from being unable to expand and deform due to excessive contact friction.

[0049] See the instructions attached Figure 4 As shown, each damping and buffering assembly 4 is also provided with a vibration position warning light 8 corresponding to the vibration displacement detection assembly 7, and the output end of the PLC controller 6 is electrically connected to the input end of the vibration position warning light 8. Through the above-mentioned specific structural design, the vibration displacement detection assembly 7 and the vibration position warning light 8 can cooperate to play two roles. The first role is that when vibration occurs, the two cooperate to realize the lighting warning of each vibration displacement direction, making it convenient for staff to intuitively observe the direction of vibration displacement; the second role is to indicate the offset direction of the upper column 2 after vibration occurs, and the sliding limit assembly 5, PLC controller 6 and vibration displacement detection assembly 7 cooperate to realize the automatic reset of the upper column 2.

[0050] Working principle:

[0051] First, cast the lower pier 1. After the lower pier 1 is cast, the second outer ring sleeve 9 is installed downward from the upper end of the lower pier 1, so that the second outer ring sleeve 9 falls on the bottom of the lower pier 1 and is fixed; use a tower crane to steadily lift the seismic isolation support 3 body, and the seismic isolation support 3 is fixedly installed on the upper side of the lower pier 1 through the lower mounting plate 3c, and then the upper bracket structure 10 is first movably sleeved on the outside of the seismic isolation support 3, and the upper column 2 is cast at this time; after the upper column 2 is cast, the upper mounting plate 3b is screwed The bolt is fixedly connected to the lower side of the upper column 2, the upper support structure 10 is moved upward to the outside of the upper column 2, and then the upper support structure 10 is fixedly connected to the upper mounting plate 3b; the damping buffer assembly 4 is set at the four corners of the lower pier 1 and the upper column 2, and the damping buffer assembly 4 is fixedly installed on the second outer ring sleeve 9. At this time, the second spring 7c of the vibration displacement detection assembly 7 is in a compressed state, and the pressure sensor 7b is at a certain value at this time; when an earthquake occurs, the lower pier 1 and the upper column 2 Under the isolation buffering of the isolation support 3, relative displacement occurs, and the V-shaped elastic buffer plate 404 undergoes elastic deformation to achieve buffering for the upper column 2. The pressure value detected by the pressure sensor 7b in the corresponding direction changes and transmits an electrical signal to the PLC controller 6. The PLC controller 6 controls the push rod of the first hydraulic cylinder 401 in that direction to retract and the vibration direction warning light 8 corresponding to that direction to illuminate, thereby increasing the buffering stroke of the elastic buffer plate 404 and avoiding irreversible deformation and damage to the elastic buffer plate 404. The vibration direction warning light 8 illuminates to warn of each vibration displacement direction, and cooperates with the vibration displacement detection component 7 to facilitate staff to intuitively observe the direction of vibration displacement and indicate the offset direction of the upper column 2 after the earthquake. When the sliding distance of the upper column 2 reaches a certain value, the sliding limit component 5 is used to limit the displacement of the upper column 2. After the vibration, the second hydraulic cylinder 506 of the sliding limit component 5 pushes the limit push plate 508 to reset the upper column 2.

[0052] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A high damping seismic isolation device with a limiting function, characterized by: The invention comprises a lower pier (1) and an upper column (2) which are arranged from bottom to top, a seismic isolation support (3) is arranged between the lower pier (1) and the upper column (2), a second outer ring sleeve (9) is fixedly arranged on the outer side of the lower end of the lower pier (1), an upper support structure (10) is fixedly arranged on the outer side of the lower end of the upper column (2), a plurality of damping and buffering components (4) which are evenly distributed around the lower pier (1) and are used to damp and buffer the vibration displacement of the upper column (2), and a plurality of sliding limit components (5) which are evenly distributed around the lower pier (1) and are used to limit the vibration displacement of the upper column (2) are also arranged on the outer side of the lower pier (1); A vibration displacement detection component (7) for detecting the displacement of the upper column (2) is provided between each damping buffer component (4) and the upper column (2), and the output end of the vibration displacement detection component (7) is electrically connected to the input end of the PLC controller (6); The upper and lower ends of the seismic isolation support (3) are respectively provided with an upper mounting plate (3b) and a lower mounting plate (3c); the upper mounting plate (3b) is fixedly connected to the lower side of the upper column (2) by bolts; the lower mounting plate (3c) is fixedly connected to the upper side of the lower pier (1) by bolts; and the outer side of the lower mounting plate (3c) is fixedly provided with a first outer ring sleeve (3a) sleeved on the outer side of the upper end of the lower pier (1); The damping buffer assembly (4) is provided with four damping buffer assemblies (4) uniformly distributed at equal angles with the lower pier (1) as the center, and the four damping buffer assemblies (4) are respectively arranged at the outer corners of the upper column (2). The damping buffer assembly (4) includes a turning rod (402) and a support rod (403). The upper end of the turning rod (402) is fixedly connected with a V-shaped elastic buffer plate (404), and the two ends of the V-shaped opening of the elastic buffer plate (404) are rotatably connected with abutment rollers (405). The turning rod (402) is hinged to each other at one end close to the elastic buffer plate (404) and the upper end of the support rod (403). The lower end of the support rod (403) is fixedly connected to the outer wall of the first outer ring sleeve (3a). An angle driving structure for driving the turning rod (402) to rotate under the support of the support rod (403) is provided between the lower end of the turning rod (402) and the outer wall of the second outer ring sleeve (9); The angle driving structure includes a first hydraulic cylinder (401), the tail end of the first hydraulic cylinder (401) is hinged to the outer wall of the second outer ring sleeve (9) through a first hinge seat (406), the push rod head end of the first hydraulic cylinder (401) is fixedly connected to a block (408), the push rod of the first hydraulic cylinder (401) is slidably connected to the outer side of one end of the block (408) with a sleeve (407), and the outer wall of the sleeve (407) is hinged to each other with the lower end of the turning rod (402) through a second hinge seat (409). Then, a limit stop shoulder (410) is fixedly provided on the outer side of one end of the push rod of the first hydraulic cylinder (401) close to the sleeve (407), a first spring (411) is nested on the outer side of the push rod of the first hydraulic cylinder (401) between the sleeve (407) and the limit stop shoulder (410), and both ends of the first spring (411) are fixedly connected to the sleeve (407) and the limit stop shoulder (410) respectively, and the output end of the PLC controller (6) is electrically connected to the input end of the first hydraulic cylinder (401); The vibration displacement detection assembly (7) comprises a fixed block (7a), which is fixedly connected to the inner corner of the elastic buffer plate (404) by means of bolts; the side of the fixed block (7a) facing the upper column (2) is connected to a pressing block (7d) via a second spring (7c); the pressing block (7d) has a right-angled triangle shape; a pressure sensor (7b) is provided at the connection between the second spring (7c) and the fixed block (7a); the output end of the pressure sensor (7b) is electrically connected to the input end of the PLC controller (6).

2. The high damping seismic isolation device with a limiting function according to claim 1, characterized in that: The sliding limit assembly (5) includes a vertical rod (502), the lower end of the vertical rod (502) is fixedly connected to the outer wall of the second outer ring sleeve (9) through a lower support rod (501), an upper support rod (504) is fixedly connected between the vertical rod (502) and the outer wall of the first outer ring sleeve (3a), the upper end of the vertical rod (502) is fixedly connected to a supporting plate (505), and a second hydraulic cylinder (506) is fixedly provided on the upper side of the supporting plate (505), and the push rod head end of the second hydraulic cylinder (506) is directed toward the upper column ( 2) and fixedly connected with a limited push plate (508), the lower support rod (501), the vertical rod (502) and the supporting plate (505) are integrally formed in a Z shape, the upper side of the supporting plate (505) is fixedly provided with a rear supporting rod (507) for supporting and limiting the tail end of the second hydraulic cylinder (506), the supporting plate (505) and the vertical rod (502) are fixedly connected to each other by bolts with a reinforcing rod (503), and the output end of the PLC controller (6) is electrically connected to the input end of the second hydraulic cylinder (506).

3. The high damping seismic isolation device with a limiting function according to claim 1, characterized in that: The upper support structure (10) includes a third outer ring sleeve (10b) sleeved on the outside of the upper column (2), the outer shape of the third outer ring sleeve (10b) is a rectangle with the same cross-sectional shape as the upper column (2), the lower side of the four corners of the third outer ring sleeve (10b) is fixedly connected to the corner support rods (10a) by bolts, the lower end of the corner support rods (10a) is fixedly connected to two connecting plates (10c), each connecting plate (10c) is fixedly connected to the upper mounting plate (3b) by bolts, and the corner support rods (10a) and the connecting plates (10c) are integrally formed with each other.

4. The high damping seismic isolation device with a limiting function according to claim 1, characterized in that: Each of the damping and buffering components (4) is also provided with a vibration position warning light (8) corresponding to the vibration displacement detection component (7), and the output end of the PLC controller (6) is electrically connected to the input end of the vibration position warning light (8).

5. The method for using the high-damping seismic isolation device with a limiting function according to claim 1, characterized in that: The following steps are involved: S1: First, the lower pier (1) is cast. After the casting of the lower pier (1) is completed, the second outer ring sleeve (9) is placed downward from the upper end of the lower pier (1) so that the second outer ring sleeve (9) falls on the bottom of the lower pier (1) and is fixed; S2: The seismic isolation support (3) is fixedly mounted on the upper side of the lower pier (1) through the lower mounting plate (3c), and then the upper support structure (10) is first movably sleeved on the outer side of the seismic isolation support (3), and at this time, the upper column (2) is cast; S3: After the upper column (2) is cast, the upper mounting plate (3b) is fixedly connected to the lower side of the upper column (2) by bolts, the upper support structure (10) is moved upward to the outside of the upper column (2), and then the upper support structure (10) and the upper mounting plate (3b) are fixedly connected to each other; S4: The damping buffer assembly (4) is arranged at the four corners of the lower pier (1) and the upper column (2), and the damping buffer assembly (4) is fixedly mounted on the second outer ring sleeve (9). At this time, the second spring (7c) of the vibration displacement detection assembly (7) is in a compressed state, and the pressure sensor (7b) is at a certain value; S5: When an earthquake occurs, the lower pier (1) and the upper column (2) undergo relative displacement under the isolation buffering of the isolation support (3), the V-shaped elastic buffer plate (404) undergoes elastic deformation to achieve buffering of the upper column (2), the pressure value detected by the pressure sensor (7b) in the corresponding direction changes and transmits an electrical signal to the PLC controller (6), and the PLC controller (6) controls the push rod of the first hydraulic cylinder (401) in the direction to retract, thereby increasing the buffering stroke of the elastic buffer plate (404); S6: When the sliding distance of the upper column (2) reaches a certain value, the sliding limit assembly (5) is used to limit the displacement of the upper column (2) and after vibration, the second hydraulic cylinder (506) of the sliding limit assembly (5) pushes the limit push plate (508) to reset the upper column (2).

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