Multifunctional vertical vibration isolation support

Abstract

The utility model discloses a kind of multi-functional vertical vibration isolation support, including upper part, lower part and elastic component, pre-pressing bolt is connected with lower part after passing through upper part and elastic component, the upper plane of lower part has boss, and isolation soft ring is installed on boss edge;The lower plane of upper part has recessed cavity, and elastic component is arranged inside it, and recessed cavity inner wall is sleeved on the outer wall of isolation soft ring, and elastic component bottom is contacted with boss;Upper part and lower part outer edge are connected by tensile bolt;Elastic component includes: elastomer and baffle, and elastomer and baffle are vertically and alternately superimposed arrangement.The vertical vibration isolation support, pre-pressure can be controlled in construction phase, avoid premature deformation in building process, meet pre-pressing, isolation vibration, tensile shear resistance under earthquake simultaneously, reduce component quantity and system complexity.

Description

Technical Field

[0001] This utility model relates to the field of vibration isolation bearing technology, specifically to a multifunctional vertical vibration isolation bearing. Background Technology

[0002] In the field of building structural engineering, especially in high-rise buildings or vibration-sensitive facilities, external vibration sources (such as earthquakes, traffic loads or mechanical operation) often affect the safety and comfort of the superstructure through vertical transmission.

[0003] A novel vertical vibration isolation bearing is disclosed in CN217480473U, comprising flexible vibration isolation material, horizontal rubber ring, tensile ring, tensile rubber assembly and tensile bolt. However, the preload control of this bearing is inaccurate (which can easily lead to premature deformation or settlement during construction), and its load-bearing capacity and deformation coordination are relatively poor. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a multifunctional vertical vibration isolation bearing that allows for control of preload during construction, preventing premature deformation during building, while simultaneously satisfying preload, vibration isolation, and tensile and shear resistance under earthquakes, thereby reducing the number of components and system complexity.

[0005] Specifically, this utility model is implemented as follows:

[0006] A multifunctional vertical vibration isolation support includes an upper component, a lower component, and an elastic component. A preload bolt passes through the upper component and the elastic component and is connected to the lower component. The upper surface of the lower component has a boss, and an isolation soft ring is installed on the edge of the boss. The lower surface of the upper component has a cavity, and the elastic component is disposed inside the cavity. The inner wall of the cavity is sleeved on the outer wall of the isolation soft ring, and the bottom of the elastic component is in contact with the boss.

[0007] The outer edges of the upper and lower components are connected by tensile bolts.

[0008] The elastic component includes:

[0009] Elastomers;

[0010] The partitions, elastomers and partitions are arranged in alternating vertical layers.

[0011] Furthermore, the tensile steel ring and the tensile washer form a tensile washer assembly. The tensile bolt is installed from the upper part downwards, passing through the tensile washer assembly and the upper part in sequence before connecting with the lower part.

[0012] Furthermore, the tensile pad ring assembly is semi-circular, and the two semi-circular tensile pad ring assemblies form a ring-shaped structure.

[0013] Furthermore, the preload bolt passes through the preload washer, the preload ring, the upper component, and the elastic assembly in sequence from top to bottom before connecting to the lower component.

[0014] Furthermore, the upper component is provided with an upper shear column, which is inserted into the upper component; the lower component is provided with a lower shear column, which is inserted into the lower component.

[0015] Furthermore, the lower component is disc-shaped, the upper component is cylindrical, the boss is a circular boss, and the cavity is a circular cavity.

[0016] Working principle:

[0017] Construction phase:

[0018] Pre-stress is generated by compressing the elastic component 3 using pre-stressing bolts 6. During the construction of the superstructure, if the weight of the superstructure is less than the pre-stress, the vibration isolation support will not undergo vertical deformation.

[0019] When the weight of the upper structure exceeds the prestress, the elastic component 3 continues to be compressed, the upper component 1 continues to move downward relative to the lower component 2, the prestressing bolt 4 is in a relaxed state, and the vibration isolation support gradually enters the working state.

[0020] The working stage of vibration isolation:

[0021] After the superstructure is completed, the vibration isolation support enters the working state. It adjusts the vertical natural frequency of the superstructure through the elastic component 3, and has the function of isolating external vibration impact.

[0022] The working stages of earthquake isolation:

[0023] When subjected to earthquake action, since the concave platform A of the upper component 1 is fitted onto the convex platform A of the lower component 2, the upper component 1 transmits the inertial force of the upper structure to the lower structure through the lower component 2. That is, the vibration isolation support has sufficient strength to resist the inertial force of the upper structure under earthquake action.

[0024] When subjected to an earthquake, the upper structure will also experience a swaying effect, causing the vibration isolation supports to be subjected to tensile forces. At this time, the upper component 1 moves upward relative to the lower component 2. Meanwhile, the tension bolt 7 restricts the upper component 1 from continuing to move upward, resisting the tensile effect of the upper structure.

[0025] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0026] (1) High-efficiency vibration isolation: Through elastic components, the natural frequency of the superstructure can be adjusted to effectively isolate external vibration impacts such as traffic and machinery, thereby improving building comfort.

[0027] (2) High tensile and seismic resistance: During an earthquake, the upper component transmits inertial force through the combination of the circular cavity and the circular boss, while the tensile bolts resist the upper tension to prevent breakage.

[0028] (3) Convenient construction and safety: Preloaded bolts allow for control of preload during construction, preventing premature deformation of the superstructure.

[0029] (4) Multifunctional integration: The support simultaneously meets the requirements of preloading, vibration isolation, and tensile and shear resistance under earthquake, reducing the number of components and system complexity. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the multifunctional vertical vibration isolation support in Example 1;

[0031] Figure 2 This is a cross-sectional schematic diagram of the multifunctional vertical vibration isolation support in Example 1;

[0032] Figure 3 This is a perspective cross-sectional view of the upper component, lower component, and elastic assembly in Embodiment 1;

[0033] Figure 4 This is a schematic cross-sectional view of the upper component, lower component, and elastic component in Embodiment 1;

[0034] Figure 5 This is a three-dimensional cross-sectional view of the elastic component in Example 1.

[0035] Figure label:

[0036] 1-Upper component, 2-Lower component, 3-Elastic component, 301-Elastomer, 302-Partition plate, 4-Preload bolt, 5-Preload washer, 6-Preload washer ring, 7-Tension bolt, 8-Tension steel ring, 9-Tension washer, 10-Isolation soft ring, 11-Lower embedded plate, 12-Lower connecting bolt, 13-Lower sleeve, 14-Lower anchor bar, 15-Upper embedded plate, 16-Upper connecting bolt, 17-Upper sleeve, 18-Upper anchor bar, 19-Lower shear column, 20-Upper shear column, A-Circular boss, A'-Circular cavity, B-Upper circular cavity, C-Lower circular cavity. Detailed Implementation

[0037] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0038] Example 1

[0039] like Figure 1As shown, this embodiment provides a multifunctional vertical vibration isolation support, including an upper component 1, a lower component 2, and an elastic component 3. An upper embedded plate 15, an upper sleeve 17, and an upper anchor bar 18 form an upper embedded component assembly, which is embedded in the upper structure. An upper connecting bolt 16 passes from bottom to top through the upper flange face of the upper component 1 and the upper embedded plate 15, and is screwed onto the upper sleeve 17, thus achieving a fixed connection between the upper component 1 and the upper structure. Similarly, a lower embedded plate 11, a lower sleeve 13, and a lower anchor bar 14 form a lower embedded component assembly, which is embedded in the lower structure. A lower connecting bolt 12 passes from top to bottom through the lower component 2 and the lower embedded plate 11, and is screwed onto the lower sleeve 13, thus achieving a fixed connection between the lower component 2 and the lower structure. This vibration isolation support achieves vibration resistance between the upper and lower structures.

[0040] The upper sleeve 17 has a threaded hole in its middle, and the lower end of the upper anchor bar 18 has a thread. The upper anchor bar 18 is screwed into the upper sleeve 17 from top to bottom. Multiple upper sleeves 17 are distributed on the upper embedded plate 15 according to a predetermined arrangement. The lower sleeve 13 has a threaded hole in its middle, and the upper end of the lower anchor bar 14 has a thread. The lower anchor bar 14 is screwed into the lower sleeve 13 from bottom to top. Multiple lower sleeves 13 are distributed below the lower embedded plate 11 according to a predetermined arrangement. The upper building support columns are connected via the upper anchor bars 18 and the lower anchor bars 14.

[0041] Specifically, such as Figure 2-4 As shown, the upper component 1 is cylindrical with flanges machined on both the top and bottom. A circular cavity A' is concentrically machined on each flange, and an elastic component 3 is installed inside the circular cavity A'. The lower component 2 is disc-shaped, with a circular boss A concentrically machined on its upper surface. A step is machined on the edge of the circular boss A. An insulating soft ring 10 is installed on the step of the circular boss A. The insulating soft ring 10 is annular, with an inner convex ring machined on its upper part. The insulating soft ring 10 is installed from top to bottom, with the inner convex ring engaging with the step of the circular boss A. The inner wall of the insulating soft ring 10 fits against the outer wall of the circular boss A. The inner wall of the circular cavity A' is fitted over the outer wall of the insulating soft ring 10, effectively placing the circular cavity A' of the upper component 1 outside the circular boss A of the lower component 2, with the insulating soft ring 10 acting as a buffer in between.

[0042] like Figure 5 As shown, the elastic component 3 is formed by vertically alternating layers of elastic body 301 and partition plate 302. The elastic body 301 and partition plate 302 are disc-shaped with the same diameter. The layered stacked structure enhances the load-bearing capacity and deformation coordination. The elastic component 3 is concentrically arranged on the circular boss A of the lower component 2. The elastic component 3 has circular through holes machined in a circular array. The circular boss A of the lower component 2 also has threaded holes in the same array as the through holes. At this time, the through holes of the elastic component 3 and the threaded holes of the lower component 2 are concentrically arranged.

[0043] The upper surface of the upper component 1 is machined with countersunk holes arranged in the same array as the through holes of the elastic component 3. Preload washers 5 are placed inside each countersunk hole. The center of each preload washer 5 is a metal ring, with soft rings of the same inner and outer diameters attached above and below it. A preload ring 6 is placed above the preload washer 5. The central hole of the preload ring 6 is a countersunk hole. Multiple preload bolts 4 pass through the countersunk holes and the through holes of the elastic component 3 from the upper surface of the upper component 1, and are screwed into the threaded holes of the circular boss A of the lower component 2. The bolt heads of the preload bolts 4 are concealed within the countersunk holes of the preload ring 6. By screwing the preload bolts 4, the upper component 1 moves downward relative to the lower component 2. At this time, the elastic component 3 is compressed, creating a preload between the upper component 1 and the lower component 2.

[0044] The outer upper surface of the lower component 2, excluding the circular boss A, is machined with a circular array of threaded holes. The lower flange surface of the upper component 1 is machined with a circular through hole in the same array as the threaded holes. The tensile steel ring 8 and the tensile washer 9 are both composed of two semi-circular rings with the same inner and outer diameters. The semi-circular rings of the tensile steel ring 8 and the tensile washer 9 are bonded together, with the tensile steel ring 8 on top and the tensile washer 9 on the bottom, forming a semi-circular tensile washer ring assembly. The two semi-circular tensile washer ring assemblies are wrapped around each other to form a ring shape and placed on the upper surface of the lower flange surface of the upper component 1. The ring shape formed together is also machined with a circular through hole in the same array as the threaded holes. The tensile bolt 7 is installed from the upper surface of the lower flange surface of the upper component 1 downwards, passing through the circular through hole of the tensile washer ring assembly, the circular through hole of the lower flange surface of the upper component 1, and screwed onto the threaded hole of the lower component 2.

[0045] The upper part 1 has an upper circular concave platform B machined in the middle of its upper surface. The upper shear column 20 has a two-stage cylindrical shape. Its upper end diameter is the same as the diameter of the circular through hole of the upper embedded plate 15, and its lower end diameter is the same as the inner diameter of the upper circular concave platform B of the upper part 1. The lower end of the upper shear column 20 is inserted into the upper circular concave platform B of the upper part 1, and its upper end is higher than the upper part 1. At this time, the upper embedded plate 15 is placed on the upper part 1, and the circular through hole of the upper embedded plate 15 is fitted into the upper end of the upper shear column 20 to strengthen the shear resistance between the upper part 1 and the upper embedded plate 15.

[0046] Similarly, the lower shear column 19 has a two-stage cylindrical shape. Its lower end diameter is the same as the diameter of the through hole in the middle of the lower embedded plate 11, and its upper end diameter is the same as the inner diameter of the lower circular concave platform C. The lower end of the lower shear column 19 is inserted into the through hole of the lower embedded plate 11, and its upper end is higher than the lower embedded plate 11. At this time, the lower component 2 is placed on the lower embedded plate 11, and the lower circular concave platform C of the lower component 2 is fitted into the upper end of the lower shear column 19 to strengthen the shear resistance between the lower component 2 and the lower embedded plate 11.

[0047] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A multifunctional vertical vibration isolation support, comprising an upper component (1), a lower component (2), and an elastic assembly (3), wherein a preload bolt (4) passes through the upper component (1) and the elastic assembly (3) and is connected to the lower component (2), characterized in that, The lower component (2) has a boss on its upper surface, and an isolation soft ring (10) is installed on the edge of the boss; the upper component (1) has a cavity on its lower surface, and an elastic component (3) is located inside it. The inner wall of the cavity is fitted onto the outer wall of the isolation soft ring (10), and the bottom of the elastic component (3) is in contact with the boss. The outer edges of the upper component (1) and the lower component (2) are connected by tensile bolts (7); The elastic component (3) includes: Elastomer (301); The partition (302), the elastomer (301) and the partition (302) are arranged vertically in alternating layers.

2. The multifunctional vertical vibration isolation support as described in claim 1, characterized in that, The tensile steel ring (8) and the tensile washer (9) form a tensile washer assembly. The tensile bolt (7) is installed from the upper part (1) downwards, passing through the tensile washer assembly and the upper part (1) in sequence, and then connected to the lower part (2).

3. The multifunctional vertical vibration isolation support as described in claim 2, characterized in that, The tensile pad ring assembly is semi-circular, and the two semi-circular tensile pad ring assemblies form a ring-shaped structure.

4. The multifunctional vertical vibration isolation support as described in claim 1, characterized in that, The preload bolt (4) passes through the preload washer (5), preload ring (6), upper component (1) and elastic component (3) from top to bottom and then connects to the lower component (2).

5. The multifunctional vertical vibration isolation support as described in claim 1, characterized in that, An upper shear column (19) is provided on the upper component (1), and the upper shear column (19) is inserted into the upper component (1); a lower shear column (20) is provided on the lower component (2), and the lower shear column (20) is inserted into the lower component (2).

6. The multifunctional vertical vibration isolation support as described in claim 1, characterized in that, The lower component (2) is disc-shaped, the upper component (1) is cylindrical, the boss is a circular boss (A), and the cavity is a circular cavity (A').

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