Seismic isolation bearing with horizontal leveling function

Abstract

The application discloses a kind of horizontal leveling function's shock insulation support, including bottom plate, top plate, leveling mechanism, support seat and shock insulation mechanism;Bottom plate is installed in the top of lower building structure, top plate is installed in the bottom of upper building structure, and a plurality of sets of shock insulation mechanism is installed between bottom plate and top plate, and forms shock insulation support main body;The side of top plate is formed with inner cavity, and leveling mechanism is installed in inner cavity;The other side of top plate is formed with recess, and support seat is matched and embedded in recess;The bottom of recess is communicated with the bottom of inner cavity, so that one end of leveling mechanism extends into recess and is movably connected with support seat, so that support seat can be vertically arranged in recess and abuts against the bottom of upper building structure.The application relates to the technical field of building shock insulation structure, and can solve the problem of inconvenient installation of shock insulation support caused by uneven installation surface of building structure in the prior art.

Description

Technical Field

[0001] This invention relates to the field of building seismic isolation structure technology, and in particular to a seismic isolation bearing with horizontal leveling function. Background Technology

[0002] Earthquakes directly damage bridges, buildings, and other structures, often causing significant losses. Therefore, improving seismic isolation capabilities and reducing earthquake damage is a crucial issue for bridge and building construction. Current building designs commonly employ seismic isolation bearings, which reduce the seismic response of the superstructure by installing isolation devices between the superstructure and the substructure support system.

[0003] Chinese invention patent CN112227551B discloses a seismic isolation bearing for buildings. Through the arrangement of the insert rod and helical blades, and the cooperation of the first bevel gear, second bevel gear, rotating rod, third bevel gear, and servo motor, the bearing is easily fixed and installed. The cooperation of the support column and the first spring effectively reduces the damage to the building caused by vibrations from external factors. Furthermore, the cooperation of the connecting rod, slider, sliding rod, and third spring reduces the amplitude of the bearing plate caused by external factors, thereby achieving vibration reduction and preventing damage to the building at the top surface of the bearing plate due to excessive amplitude. The stability of the bearing is improved through the cooperation of the water-blocking plate, guide plate, rubber column, second spring, conical spike, and tripod.

[0004] The aforementioned seismic isolation bearing has a horizontally positioned bearing plate at its top. During installation, this plate needs to be horizontally aligned with the designated building support. When the surface of the installation area on the building structure is uneven, it is generally necessary to add shims to ensure the stability of the support and alignment, or to use machinery to grind the installation surface smooth, making the installation of the seismic isolation bearing inconvenient. Therefore, there is a need to provide a seismic isolation bearing with a horizontal leveling function, which can solve the problem of inconvenient installation caused by uneven building structure installation surfaces in existing technologies. Summary of the Invention

[0005] The purpose of this invention is to provide a seismic isolation bearing with a horizontal leveling function, which can solve the problem of inconvenient installation of seismic isolation bearings caused by uneven building structure installation surfaces in the prior art.

[0006] This invention is implemented as follows:

[0007] A seismic isolation bearing with horizontal leveling function includes a base plate, a top plate, a leveling mechanism, a support, and a seismic isolation mechanism. The base plate is installed on the top of the lower building structure, and the top plate is installed on the bottom of the upper building structure. Several sets of seismic isolation mechanisms are installed at intervals between the base plate and the top plate to form the main body of the seismic isolation bearing. An inner cavity is formed on one side of the top plate, and the leveling mechanism is installed in the inner cavity. A groove is formed on the other side of the top plate, and the support is fitted into the groove. The bottom of the groove is connected to the bottom of the inner cavity, so that one end of the leveling mechanism extends into the groove and is movably connected to the support, allowing the support to be raised and lowered and set in the groove and abutting against the bottom of the upper building structure.

[0008] The leveling mechanism includes a pull plate, a transmission block, an adjusting rod, and a helical gear. The adjusting rod is rotatably disposed in the inner cavity. One end of the pull plate is located in the inner cavity, and the other end of the pull plate extends through the inner cavity into the groove and is movably connected to the bottom of the support. Several transmission blocks are formed at intervals on one end of the pull plate. The helical gear is disposed on the adjusting rod and is helically connected to the several transmission blocks, so that the pull plate is slidably disposed in the inner cavity and the groove.

[0009] One end of the inner cavity extends through one side of the top plate. A baffle is detachably installed on the side wall of the top plate and closes one end of the inner cavity. One end of the adjusting rod is rotatably connected to the baffle, and the other end of the adjusting rod is rotatably connected to the inner wall of the inner cavity away from the baffle.

[0010] One end of the pull plate is a first thin plate segment, and the other end of the pull plate is a first thick plate segment. The middle part of the pull plate is a first ramp segment that transitions between the first thin plate segment and the first thick plate segment. One end of the support is a second thick plate segment, and the other end of the support is a second thin plate segment. The middle part of the support is a second ramp segment that transitions between the second thick plate segment and the second thin plate segment. The support is mounted on the pull plate, and the first ramp segment and the second ramp segment are slidably fitted together. The second thick plate segment is slidably mounted on the first thin plate segment.

[0011] The first slope section has several protrusions spaced apart, and the bottom of the second slope section has several serrated openings spaced apart. The cross-section of the protrusions is a horizontal triangular structure at the top, and the cross-section of the serrated openings is a horizontal triangular structure at the bottom, so that the protrusions and serrated openings can be slidably inserted.

[0012] The second thick plate section of the support has several locking blocks spaced apart on its side wall, and the inner wall of the groove of the top plate has several limiting grooves spaced apart. The thickness of the locking block is less than the height of the limiting groove, and the locking block matches the limiting groove, so that the locking block can be lifted and embedded in the limiting groove. The cross-section of the locking block and the cross-section of the limiting groove are both isosceles trapezoidal structures.

[0013] The top surface of the top plate and the top surface of the support are provided with several pads at intervals, and the pads can abut against the bottom of the upper building structure.

[0014] Each set of vibration isolation mechanisms includes a support plate fixedly connected to the bottom surface of the top plate, a movable column vertically penetrating the lower part of the support plate, and a pair of damping components installed at both ends of the movable column and symmetrically arranged on both sides of the support plate.

[0015] Each damping assembly includes a first sleeve, a second sleeve, a reinforcing block, a connecting seat, an elastic steel plate, a first damper, and a connecting sleeve. Both the first and second sleeves can be rotatably fitted onto the movable column. One end of each of the two reinforcing blocks is fixedly connected to the upper, opposite sides of the first and second sleeves. The other ends of each reinforcing block extend toward both sides of the movable column and are provided with connecting seats. Both ends of the first damper are rotatably fitted to the connecting seats at the other ends of the two reinforcing blocks via connecting sleeves. One end of each of the two elastic steel plates is connected to the lower, opposite sides of the first and second sleeves. The other ends of each elastic steel plate extend in opposite directions and are slidably mounted on the base plate.

[0016] The bottom plate and the top plate are slidably provided with a quick reset mechanism. The quick reset mechanisms are arranged in pairs so that the other end of the elastic steel plate on the same side of a pair of damping components is inserted into a set of quick reset mechanisms.

[0017] Each quick reset mechanism includes a limit frame, a movable frame, and a second damper. The limit frame is slidably mounted on the base plate and has a C-shaped structure with a side opening. The other end of the elastic steel plate on the same side of a pair of damping components is inserted into the limit frame through the side opening. The two movable frames are respectively installed on the top of the limit frame and the bottom of the top plate, and the two ends of the second damper are respectively rotatably hinged to the two movable frames.

[0018] A groove is formed on the base plate, and a sliding block is formed at the bottom of the limiting frame. The sliding block is slidably embedded in the groove, so that the limiting frame can be slidably set on the base plate.

[0019] The top of the base plate has an outer frame, and the bottom of the top plate has an inner frame. The lower end of the inner frame is movably inserted into the outer frame, so that the outer frame and the inner frame form a telescopic sleeve that surrounds the vibration isolation mechanism and the quick reset mechanism.

[0020] Compared with the prior art, the present invention has the following advantages:

[0021] 1. During installation, when the lower surface of the upper building structure is locally uneven, the pad on the top of the top plate is first placed against the lower surface of the upper building structure. Then, an electric tool is used to drive the adjusting rod and the helical gear to rotate forward or backward. The rotating helical gear will pull the pull plate along the inner cavity through the transmission block. When the pull plate slides, it will push the second slope section of the support through the first slope section, thereby raising or lowering the support. This ensures that the support is supported by the pad on its top in the uneven position of the upper building structure, and ensures that the top of the seismic isolation bearing has a horizontal leveling function. It can meet the installation needs of different building locations and has good adaptability and versatility.

[0022] 2. When this invention is used, when an earthquake causes vibration between the upper and lower structural parts of a building, the top plate will vibrate towards the bottom plate. Multiple sets of elastic steel plates will rotate in opposite directions around the movable column through sleeve No. 1 and sleeve No. 2. When sleeve No. 1 and sleeve No. 2 rotate in opposite directions, they will cause the two connecting seats to move away from each other. As a result, the first damper connected between the two connecting seats will be pulled and stretched. The damping characteristics of the first damper (viscous damper) can ensure that the seismic isolation bearing has a stable damping effect. At the same time, through the cooperation between the first damper and the elastic steel plate, the impact force on the first damper can be mitigated.

[0023] 3. When subjected to seismic forces, the vibration force of the building is buffered by the seismic isolation mechanism between the upper and lower building structures. Two sets of elastic steel plates arranged opposite to each other push the two sets of limiting frames to move in opposite directions. At this time, when the limiting frames are subjected to compressive force and slip, they will compress the second damper between the top plate and the limiting frame to produce expansion and contraction deformation. The impact force on the seismic isolation mechanism can be distributed through the second damper (spring damper), and the limiting frame can be pushed back to its original position by the second damper, ensuring that the seismic isolation bearing has a good damping effect, long service life and good durability. Attached Figure Description

[0024] Figure 1 This is a front sectional view of the seismic isolation bearing with horizontal leveling function of the present invention.

[0025] Figure 2 This is a top view of the seismic isolation bearing with horizontal leveling function of the present invention;

[0026] Figure 3 yes Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 This is a perspective view of several sets of seismic isolation mechanisms in the seismic isolation bearing with horizontal leveling function of the present invention;

[0028] Figure 5This is an exploded view of the seismic isolation mechanism in the seismic isolation bearing with horizontal leveling function of the present invention.

[0029] Figure 6 This is a perspective view of the rapid reset mechanism in the seismic isolation bearing with horizontal leveling function of the present invention.

[0030] In the diagram, 1. Base plate; 101. Outer frame; 102. Slide groove; 2. Top plate; 201. Inner frame; 202. Limiting groove; 3. Leveling mechanism; 301. Inner cavity; 302. Pull plate; 303. Transmission block; 304. Protrusion; 305. Serrated edge; 306. Adjusting rod; 307. Helical tooth; 4. Support; 401. Locking block; 5. Pad; 6. Baffle; 7. Vibration isolation mechanism; 701. Support plate; 702. Movable column; 703. First sleeve; 704. Second sleeve; 705. Reinforcing block; 706. Connecting seat; 707. Elastic steel plate; 708. First damper; 709. Connecting sleeve; 8. Quick reset mechanism; 801. Limiting frame; 802. Sliding block; 803. Movable frame; 804. Second damper. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] Please see the appendix Figure 1 A seismic isolation bearing with horizontal leveling function includes a base plate 1, a top plate 2, a leveling mechanism 3, a support 4, and a seismic isolation mechanism 7. The base plate 1 is installed on the top of the lower building structure, and the top plate 2 is installed on the bottom of the upper building structure. Several sets of seismic isolation mechanisms 7 are installed at intervals between the base plate 1 and the top plate 2 to form the main body of the seismic isolation bearing. An inner cavity 301 is formed on one side of the top plate 2, and the leveling mechanism 3 is installed in the inner cavity 301. A groove is formed on the other side of the top plate 2, and the support 4 is fitted into the groove. The bottom of the groove is connected to the bottom of the inner cavity 301, so that one end of the leveling mechanism 3 extends into the groove and is movably connected to the support 4, so that the support 4 can be raised and lowered and is installed in the groove and abuts against the bottom of the upper building structure.

[0033] The base plate 1, top plate 2, and several sets of seismic isolation mechanisms 7 constitute the main body of the seismic isolation bearing. The base plate 1 and top plate 2 can be made of planar plate structures such as rectangular steel plates. Threaded sleeves are pre-embedded in the upper building structure (usually the upper pier structure) and the lower building structure (usually the lower pier structure). Corner plates are set at the four corners of the base plate 1 and top plate 2, and the corner plates are fixed to the threaded sleeves of the upper and lower building structures by bolts. This allows the base plate 1 to be attached to the lower building structure and the top plate 2 to be attached to the upper building structure, so that the several sets of seismic isolation mechanisms 7 can play a role in damping and isolating between the upper and lower building structures.

[0034] If the upper building structure cannot be fully fitted with the top slab 2, the seismic isolation and damping effect may be reduced. The height of the support 4 can be adjusted by raising and lowering the leveling mechanism 3, so that the top slab 2 and the support 4 can fit with the upper building structure to the greatest extent and ensure the seismic isolation and damping effect. If the lower building structure cannot be fully fitted with the bottom slab 1, the leveling mechanism 3 and the support 4 can also be installed inside the bottom slab 1 to achieve full fit between the bottom slab 1 and the support 4 and the lower building structure. The following only describes in detail the specific structure of installing the leveling mechanism 3 and the support 4 inside the top slab 2.

[0035] Preferably, the thickness of the base plate 1 and the top plate 2 can be adaptively adjusted according to the installation space and load requirements of the leveling mechanism 3 and the support 4.

[0036] Please see the appendix Figure 1 The leveling mechanism 3 includes a pull plate 302, a transmission block 303, an adjusting rod 306, and a spiral tooth 307. The adjusting rod 306 is rotatably disposed in the inner cavity 301. One end of the pull plate 302 is located in the inner cavity 301, and the other end of the pull plate 302 extends through the inner cavity 301 into the groove and is movably connected to the bottom of the support 4. Several transmission blocks 303 are formed at intervals on one end of the pull plate 302. The spiral tooth 307 is disposed on the adjusting rod 306, and the spiral tooth 307 is spirally connected to the several transmission blocks 303, so that the pull plate 302 is slidably disposed in the inner cavity 301 and the groove.

[0037] Preferably, a slide rail can be provided at the bottom of the support 4, and a slider can be provided at the top of the pull plate 302. The slide rail guides the slider to ensure stable sliding between the pull plate 302 and the support 4.

[0038] Preferably, the transmission block 303 can adopt a frustum-shaped structure and match the shape of the helical teeth 307. The number and spacing of the transmission blocks 303 can be adaptively adjusted according to actual transmission requirements. Under the rotation adjustment of the adjusting rod 306, the helical teeth 307 are driven to rotate synchronously and mesh with the transmission blocks 303, so that the transmission blocks 303 drive the pull plate 302 to move horizontally, thereby using the pull plate 302 to lift or lower the support 4 to maximize the adaptation to the shape of the connection surface of the upper building structure.

[0039] Please see the appendix Figure 1 One end of the inner cavity 301 penetrates one side of the top plate 2. A baffle 6 is detachably installed on the side wall of the top plate 2 and closes one end of the inner cavity 301. One end of the adjusting rod 306 is rotatably connected to the baffle 6 through a rotating bearing, and the other end of the adjusting rod 306 is rotatably connected to the inner wall of the inner cavity 301 away from the baffle 6 through a rotating bearing.

[0040] The baffle 6 can be installed on the top plate 2 in a detachable manner, such as by bolting, which facilitates disassembly and assembly. This makes it easier to control the rotation of the adjusting rod 306 during installation and also facilitates subsequent maintenance and replacement. A connector can be provided at the end of the adjusting rod 306 to allow for rotation control using existing tools such as motors and wrenches, which will not be elaborated here.

[0041] Please see the appendix Figure 1 One end of the pull plate 302 is a first thin plate segment, and the other end of the pull plate 302 is a first thick plate segment. The middle part of the pull plate 302 is a first ramp segment that transitions between the first thin plate segment and the first thick plate segment. One end of the support 4 is a second thick plate segment, and the other end of the support 4 is a second thin plate segment. The middle part of the support 4 is a second ramp segment that transitions between the second thick plate segment and the second thin plate segment. The support 4 is disposed on the pull plate 302, and the first ramp segment and the second ramp segment are slidably fitted together. The second thick plate segment is slidably disposed on the first thin plate segment, and the second thin plate segment is slidably disposed on the first thick plate segment.

[0042] Because the support 4 is embedded in the groove, its horizontal movement is restricted by the inner wall of the groove, allowing it to move only up and down. When the pull plate 302 moves horizontally, the first ramp section of the pull plate 302 slides relative to the second ramp section of the support 4. This ramp sliding converts the horizontal movement of the pull plate 302 into the lifting and lowering movement of the support 4 within the groove, thus achieving a matching fit between the support 4 and the mounting surface of the upper building structure. The lengths of the first and second ramp sections can be adaptively adjusted according to actual adjustment needs.

[0043] Please see the appendix Figure 3 The first slope section has several protrusions 304 spaced apart, and the bottom of the second slope section has several serrated openings 305 spaced apart. The cross-section of the protrusions 304 is a triangular structure with a horizontal top, and the cross-section of the serrated openings 305 is a triangular structure with a horizontal bottom, so that the protrusions 304 and the serrated openings 305 can be slidably inserted.

[0044] The horizontal surfaces of the triangular structure abut each other, ensuring the vertical alignment of the first ramp section with the second ramp section. The inclined surfaces of the triangular structure provide a relative sliding surface for the first and second ramp sections. This allows the protrusions 304 and serrated openings 305 to generate alternating movements of squeezing and engaging, resulting in a slight upward lifting effect on the support 4. This prevents the support 4 from shifting position due to downward impact.

[0045] Please see the appendix Figure 2The second thick plate section of the support 4 has a number of locking blocks 401 spaced apart on its side wall, and the inner wall of the groove of the top plate 2 has a number of limiting grooves 202 spaced apart. The thickness of the locking block 401 is less than the height of the limiting groove 202, and the locking block 401 matches the limiting groove 202, so that the locking block 401 can be lifted and embedded in the limiting groove 202.

[0046] The number of locking blocks 401 and limiting grooves 202 is the same, and their number can be matched according to actual connection requirements. By the lifting and sliding of the thinner locking blocks 401 in the deeper limiting grooves 202, the support 4 can be positioned and prevented from deviating when leveling its horizontal position by rising or falling.

[0047] Preferably, the cross-section of the locking block 401 and the cross-section of the limiting groove 202 are both isosceles trapezoidal structures to ensure that the locking block 401 will not come out of the limiting groove 202 when it is raised or lowered.

[0048] Please see the appendix Figure 1 and attached Figure 2 The top surface of the top plate 2 and the top surface of the support 4 are provided with several pads 5 at intervals, and the pads 5 can abut against the bottom of the upper building structure.

[0049] Preferably, the pad 5 can be made of a material with certain deformation properties such as rubber. Through the compression deformation of the pad 5, it is beneficial to improve the fit between the pad 5 and the upper building structure, and the pad 5 can also play a certain role in shock absorption and vibration isolation.

[0050] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 Each set of vibration isolation mechanisms 7 includes a support plate 701 fixedly connected to the bottom surface of the top plate 2, a movable column 702 vertically penetrating the lower part of the support plate 701, and a pair of damping components installed at both ends of the movable column 702 and symmetrically arranged on both sides of the support plate 701; each set of damping components includes a first sleeve 703, a second sleeve 704, a reinforcing block 705, a connecting seat 706, an elastic steel plate 707, a first damper 708, and a connecting sleeve 709; the first sleeve 703 and the second sleeve 704 can be rotatably sleeved on the movable column 702, and the two reinforcing blocks 705 One end of each of the two reinforcing blocks 705 is fixedly connected to the upper side of the first sleeve 703 and the second sleeve 704, which are far apart from each other. The other ends of the two reinforcing blocks 705 extend to both sides of the movable column 702 and are provided with connecting seats 706. The two ends of the first damper 708 are rotatably sleeved with the connecting seats 706 at the other end of the two reinforcing blocks 705 through connecting sleeves 709. One end of each of the two elastic steel plates 707 is connected to the lower side of the first sleeve 703 and the second sleeve 704, which are far apart from each other. The other ends of the two elastic steel plates 707 extend in opposite directions and are slidably mounted on the base plate 1.

[0051] Preferably, the first damper 708 can be a viscous damper commonly used in building seismic isolation structures, and the elastic steel plate 707 can be made of an arc-shaped elastic steel plate. Through the cooperation between the first damper 708 and the elastic steel plate 707, the impact force on the first damper 708 can be mitigated.

[0052] When an earthquake causes vibrations between the upper and lower building structures, the top slab 2 will vibrate towards the bottom slab 1. As the support plate 701 on the lower side of the top slab 2 moves downwards, it will cause the first sleeve 703, the second sleeve 704, and the elastic steel plate 707 to move downwards simultaneously. Since the elastic steel plates 707 on the first sleeve 703 and the second sleeve 704 are arranged opposite each other, the downward movement of the support plate 701 will cause the movable column 702 to move downwards towards the bottom slab 1. Thus, multiple sets of elastic steel plates 707 will pass through the first sleeve 703 and the second sleeve 704. Sleeve 703 and sleeve 704 rotate in opposite directions around movable column 702. At the same time, elastic steel plate 707 can also bend elastically. When sleeve 703 and sleeve 704 rotate in opposite directions, they will drive the two connecting seats 706 away from each other. As a result, the viscous damper 708 connected between the two connecting seats 706 will be stretched. The damping and shock absorption characteristics of the viscous damper ensure that the seismic isolation bearing has a stable shock absorption effect.

[0053] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 6 The bottom plate 1 and the top plate 2 are slidably provided with a quick reset mechanism 8. The quick reset mechanisms 8 are arranged in pairs, so that the other end of the elastic steel plate 707 on the same side of a pair of damping components is inserted into a set of quick reset mechanisms 8.

[0054] Since the elastic steel plate 707 has an arc-shaped structure, it will produce horizontal displacement when it is subjected to pressure from above and below. The quick reset mechanism 8 can assist in the reset of the elastic steel plate 707, ensuring the continuous and long-term vibration isolation effect of the vibration isolation mechanism 7.

[0055] Please see the appendix Figure 4 and attached Figure 6 Each of the quick reset mechanisms 8 includes a limiting frame 801, a movable frame 803, and a second damper 804. The limiting frame 801 is slidably mounted on the base plate 1 and has a C-shaped structure with a side opening. The other end of the elastic steel plate 707 on the same side of a pair of damping components is inserted into the limiting frame 801 through the side opening. The two movable frames 803 are respectively installed on the top of the limiting frame 801 and the bottom of the top plate 2. The two ends of the second damper 804 are respectively rotatably hinged to the two movable frames 803.

[0056] Preferably, the limiting frame 801 can be made of channel steel, and the movable frame 803 can be composed of a pair of ear plates. One movable frame 803 can be welded to each of the top ends of the limiting frame 801, and two movable frames 803 can also be welded to the corresponding positions at the bottom of the top plate 2, which is beneficial to the uniform and stable force distribution of the quick reset mechanism 8.

[0057] During an earthquake, the vibration force of the building is buffered by several sets of seismic isolation mechanisms 7 between the upper and lower building structures. When two sets of oppositely arranged elastic steel plates 707 rotate in opposite directions, they push two sets of limiting frames 801 to move in opposite directions, and the limiting frames 801 slide along the base plate 1. The change in the horizontal position of the limiting frames 801 causes the second damper 804 to undergo expansion and contraction deformation and rotation. The second dampers 804, which are set on both sides of the support plate 701, can protect the sides of the seismic isolation bearing from deviation, and can also distribute the impact force on the seismic isolation mechanism 7. Furthermore, the second dampers 804 can push the limiting frames 801 to reset, allowing the seismic isolation mechanism 7 to quickly return to its initial state, ensuring that the seismic isolation bearing has a good damping effect.

[0058] Preferably, the second damper 804 can be a spring damper commonly used in building seismic isolation structures.

[0059] Please see the appendix Figure 4 and attached Figure 6 A groove 102 is formed on the base plate 1, and a sliding block 802 is formed at the bottom of the limiting frame 801. The sliding block 802 is slidably embedded in the groove 102, so that the limiting frame 801 is slidably set on the base plate 1.

[0060] The limiting frame 801 can slide along the groove 102 on the top surface of the base plate 1 via the sliding block 802 at the bottom, thereby achieving the sliding stability and trajectory controllability of the limiting frame 801. Preferably, the cross-sections of the groove 102 and the sliding block 802 are both isosceles trapezoidal structures, which can ensure smooth sliding and prevent it from easily coming off.

[0061] Please see the appendix Figure 1 The bottom plate 1 has an outer frame 101 at the top and an inner frame 201 at the bottom. The lower end of the inner frame 201 is movably inserted into the outer frame 101, so that the outer frame 101 and the inner frame 201 form a telescopic sleeve surrounding the vibration isolation mechanism 7 and the quick reset mechanism 8.

[0062] The telescopic sleeve formed by the outer frame 101 and the inner frame 201 provides protection to the outside of the vibration isolation mechanism 7 and the quick reset mechanism 8, extending their service life. The heights of the outer frame 101 and the inner frame 201 should be adjusted adaptively according to the vertical stroke of the vibration isolation mechanism 7 to ensure its vibration isolation and damping function, and to prevent the outer frame 101 from colliding with the top plate 2 and the inner frame 201 from colliding with the bottom plate 1.

[0063] Please see the appendix Figure 1 To be continued Figure 6 The top plate 2 and the bottom plate 1 are respectively connected to the lower surface of the upper building structure and the upper surface of the lower building structure. When an earthquake causes vibration between the upper and lower building structures, the top plate 2 of the seismic isolation bearing will vibrate towards the bottom plate 1. The first damper 708 in the seismic isolation mechanism 7 works in conjunction with the elastic steel plate 707 to achieve smooth vibration reduction, and the quick reset mechanism 8 quickly resets the bearing, ensuring that the seismic isolation bearing can meet the seismic isolation requirements of school buildings and other buildings. The contents not described in detail in this invention are existing technologies known to those skilled in the art.

[0064] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of protection of the invention. Therefore, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A seismic isolation bearing with horizontal leveling function, characterized in that: It includes a base plate (1), a top plate (2), a leveling mechanism (3), a support (4), and a seismic isolation mechanism (7); the base plate (1) is installed on the top of the lower building structure, the top plate (2) is installed on the bottom of the upper building structure, and several sets of seismic isolation mechanisms (7) are installed at intervals between the base plate (1) and the top plate (2) to form the main body of the seismic isolation support; an inner cavity (301) is formed on one side of the top plate (2), and the leveling mechanism (3) is installed in the inner cavity (301); a groove is formed on the other side of the top plate (2), and the support (4) is fitted into the groove; the bottom of the groove is connected to the bottom of the inner cavity (301), so that one end of the leveling mechanism (3) extends into the groove and is movably connected to the support (4), so that the support (4) can be raised and lowered and set in the groove and abut against the bottom of the upper building structure; The leveling mechanism (3) includes a pull plate (302), a transmission block (303), an adjusting rod (306), and a spiral tooth (307). The adjusting rod (306) is rotatably disposed in the inner cavity (301). One end of the pull plate (302) is located in the inner cavity (301), and the other end of the pull plate (302) extends through the inner cavity (301) into the groove and is movably connected to the bottom of the support (4). Several transmission blocks (303) are formed at intervals on one end of the pull plate (302). The spiral tooth (307) is disposed on the adjusting rod (306), and the spiral tooth (307) is spirally connected to several transmission blocks (303), so that the pull plate (302) is slidably disposed in the inner cavity (301) and the groove. Each of the vibration isolation mechanisms (7) includes a support plate (701) fixedly connected to the bottom surface of the top plate (2), a movable column (702) vertically penetrating the lower part of the support plate (701), and a pair of damping components installed at both ends of the movable column (702) and symmetrically arranged on both sides of the support plate (701). Each damping assembly includes a first sleeve (703), a second sleeve (704), a reinforcing block (705), a connecting seat (706), an elastic steel plate (707), a first damper (708), and a connecting sleeve (709); both the first sleeve (703) and the second sleeve (704) can be rotatably fitted onto the movable column (702), and one end of each of the two reinforcing blocks (705) is fixedly connected to the upper, away sides of the first sleeve (703) and the second sleeve (704), respectively. The other end of the first damper (708) extends to both sides of the movable column (702) and is provided with a connecting seat (706); the two ends of the first damper (708) are rotatably connected to the connecting seat (706) at the other end of the two reinforcing blocks (705) through the connecting sleeve (709); one end of the two elastic steel plates (707) is connected to the lower side of the first sleeve (703) and the second sleeve (704) respectively, which are far apart from each other, and the other ends of the two elastic steel plates (707) extend in opposite directions and are slidably set on the base plate (1).

2. The seismic isolation bearing with horizontal leveling function according to claim 1, characterized in that: One end of the inner cavity (301) penetrates one side of the top plate (2). A baffle (6) is detachably installed on the side wall of the top plate (2) and closes one end of the inner cavity (301). One end of the adjusting rod (306) is rotatably connected to the baffle (6), and the other end of the adjusting rod (306) is rotatably connected to the inner wall of the inner cavity (301) away from the baffle (6).

3. The seismic isolation bearing with horizontal leveling function according to claim 1, characterized in that: One end of the pull plate (302) is a first thin plate segment, the other end of the pull plate (302) is a first thick plate segment, and the middle part of the pull plate (302) is a first ramp segment that transitions between the first thin plate segment and the first thick plate segment; one end of the support (4) is a second thick plate segment, the other end of the support (4) is a second thin plate segment, and the middle part of the support (4) is a second ramp segment that transitions between the second thick plate segment and the second thin plate segment; the support (4) is set on the pull plate (302), and the first ramp segment and the second ramp segment are slidably attached, the second thick plate segment is slidably set on the first thin plate segment, and the second thin plate segment is slidably set on the first thick plate segment; The first slope section has several protrusions (304) spaced apart, and the bottom of the second slope section has several serrated openings (305) spaced apart. The cross-section of the protrusion (304) is a triangular structure with a horizontal top, and the cross-section of the serrated opening (305) is a triangular structure with a horizontal bottom, so that the protrusion (304) and the serrated opening (305) can be slidably inserted.

4. The seismic isolation bearing with horizontal leveling function according to claim 3, characterized in that: The second thick plate section of the support (4) has several locking blocks (401) spaced apart on its side wall, and the groove inner wall of the top plate (2) has several limiting grooves (202) spaced apart. The thickness of the locking block (401) is less than the height of the limiting groove (202), and the locking block (401) matches the limiting groove (202), so that the locking block (401) can be lifted and embedded in the limiting groove (202). The cross-section of the locking block (401) and the cross-section of the limiting groove (202) are both isosceles trapezoidal structures.

5. The seismic isolation bearing with horizontal leveling function according to claim 1 or 4, characterized in that: The top surface of the top plate (2) and the top surface of the support (4) are provided with several pads (5) at intervals, and the pads (5) can abut against the bottom of the upper building structure.

6. The seismic isolation bearing with horizontal leveling function according to claim 1, characterized in that: The bottom plate (1) and the top plate (2) are slidably provided with a quick reset mechanism (8). The quick reset mechanisms (8) are arranged in pairs, so that the other end of the elastic steel plate (707) on the same side of a pair of damping components is inserted into a set of quick reset mechanisms (8). Each quick reset mechanism (8) includes a limit frame (801), a movable frame (803), and a second damper (804). The limit frame (801) is slidably mounted on the base plate (1). The limit frame (801) has a C-shaped structure with a side opening. The other end of the elastic steel plate (707) on the same side of a pair of damping components is inserted into the limit frame (801) through the side opening. The two movable frames (803) are respectively installed on the top of the limit frame (801) and the bottom of the top plate (2). The two ends of the second damper (804) are respectively rotatably hinged to the two movable frames (803).

7. The seismic isolation bearing with horizontal leveling function according to claim 6, characterized in that: A groove (102) is formed on the base plate (1), and a sliding block (802) is formed at the bottom of the limiting frame (801). The sliding block (802) is slidably embedded in the groove (102), so that the limiting frame (801) is slidably set on the base plate (1).

8. The seismic isolation bearing with horizontal leveling function according to claim 6 or 7, characterized in that: The bottom plate (1) has an outer frame (101) at the top and an inner frame (201) at the bottom. The lower end of the inner frame (201) is movably inserted into the outer frame (101), so that the outer frame (101) and the inner frame (201) form a telescopic sleeve surrounding the vibration isolation mechanism (7) and the quick reset mechanism (8).

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