CN108396786B - Vibration isolation device - Google Patents
Vibration isolation device Download PDFInfo
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- CN108396786B CN108396786B CN201810440102.3A CN201810440102A CN108396786B CN 108396786 B CN108396786 B CN 108396786B CN 201810440102 A CN201810440102 A CN 201810440102A CN 108396786 B CN108396786 B CN 108396786B
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- connecting plate
- plate
- vibration isolation
- cavity
- vibration
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- 238000002955 isolation Methods 0.000 title claims abstract description 71
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000009467 reduction Effects 0.000 claims abstract description 23
- 229920001971 elastomer Polymers 0.000 claims description 24
- 239000002245 particle Substances 0.000 claims description 12
- 238000005187 foaming Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 230000003993 interaction Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 229920001821 foam rubber Polymers 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000008485 antagonism Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/08—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against transmission of vibrations or movements in the foundation soil
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Vibration Prevention Devices (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The application relates to a vibration isolation device, which comprises an upper connecting plate (1); a lower connecting plate (2); the vibration reduction and isolation matching component (3), and the vibration reduction and isolation matching component (3) is arranged between the upper connecting plate (1) and the lower connecting plate (2); the vibration reduction and isolation matching assembly (3) comprises a middle connecting plate (31), wherein the middle connecting plate (31) is connected with the upper connecting plate (1) in a sealing way, and a cavity (10) is formed between the middle connecting plate (31) and the upper connecting plate (1); and a tubular support (32) having a hollow interior, the tubular support (32) being vertically disposed in the vibration damping and isolation fit assembly (3); wherein the open end of the tubular support (32) is communicated with the cavity (10), so that the inside of the tubular support is communicated with the cavity (10); the cavity (10) and the inside of the tubular support (32) are filled with compressed gas. Compared with the prior art, the vibration isolation device has good vibration isolation effect.
Description
Technical Field
The application relates to the field of constructional engineering, in particular to a vibration isolation device.
Background
Transportation means such as subways and high-speed rails bring convenience to life of people and a series of vibration problems. If subway, high-speed railway are in the operation in-process, can make the soil layer take place multidimensional environment vibration, and this vibration propagates behind buildings such as station, industrial factory building, the civil building of adjacent track traffic, can influence indoor comfort level and precision instruments's normal use for building structure takes place fatigue damage, influences the security of building.
In order to solve the problems, various vibration reduction and isolation measures are proposed at present, such as novel rails of floating slabs, ground barriers, building foundation vibration isolation and the like. The novel floating slab track has the problems that the manufacturing cost is high, and the normal operation of a train can be influenced during construction; the ground barrier occupies a large amount of land resources and is not beneficial to popularization in a plurality of cities of the underground pipeline; the construction foundation vibration isolation measure has the lowest cost, and can simultaneously meet the vibration isolation requirement under the earthquake action after reasonable design, so the application range is the widest and the popularization value is the highest.
However, in order to simultaneously consider the vertical vibration isolation and the horizontal vibration isolation functions, the conventional basic vibration isolation device generally simply stacks a lead rubber vibration isolation support with a steel spring or a bag-type air spring, and is used for basic construction after assembly. The simple superposition can meet the requirement of the three-dimensional vibration isolation function, but has lower rigidity for resisting rotational deformation, does not have a limiting function, and has insufficient tensile capacity, so that the problem of safety and stability of the support can be outstanding due to the overturning moment of the upper structure during heavy earthquake. Meanwhile, the greatly increased height-width ratio of the support can enable the support to easily overturn and roll under the action of large shock, so that the overall overturn and collapse of the upper structure are caused. In addition, the vertical compression bearing capacity of the steel spring or the bag-type air spring is weaker, wherein the bag-type air spring can only reach hundreds of kilopascals, and the vertical bearing capacity requirement of most buildings in China on the vibration isolation support is difficult to meet.
Disclosure of Invention
In view of the above problems, an object of the present application is to provide a vibration damping device that has good vibration damping characteristics and can uniformly bear the total weight of a building.
In order to achieve the above purpose, the technical scheme adopted by the application is as follows: a vibration isolation apparatus comprising:
an upper connecting plate;
a lower connecting plate;
the vibration reduction and isolation matching assembly is arranged between the upper connecting plate and the lower connecting plate;
the method is characterized in that:
the vibration reduction and isolation matching assembly comprises a middle connecting plate, wherein the middle connecting plate is connected with an upper connecting plate in a sealing way, and a cavity is formed between the middle connecting plate and the upper connecting plate; and
the cylindrical supporting piece is hollow in the interior and is vertically arranged in the vibration reduction and isolation matching assembly;
the opening end of the cylindrical supporting piece is communicated with the cavity, so that the inside of the cylindrical supporting piece is communicated with the cavity;
the cavity and the inside of the cylindrical supporting piece are filled with compressed gas.
In order to reduce the pressure of the compressed gas, increase the energy consumption damping when the compressed gas circulates, make the whole device have better buffering vibration reduction effect, as an improvement, the inside of cavity and tube-shape support piece is filled with foaming rubber plate or elasticity particulate matter. The foam rubber plate or the elastic particles have good vertical and lateral rigidity, the foam rubber plate or the elastic particles are filled in the cavity, and compressed gas is filled in the cavity at the same time, so that the total weight of an upper building can be borne by the foam rubber plate or the elastic particles together, the pressure born by the compressed gas is reduced, the defect that the vertical rigidity of the foam rubber plate or the elastic particles is large in discrete property and the like when the foam rubber plate or the elastic particles are isolated singly is overcome, the vibration isolation device has low vertical rigidity characteristics and high vertical bearing capacity, and the vertical rigidity of the vibration isolation device is ensured to reach an accurate design value; and the foaming rubber plate or elastic particles can provide lateral constraint force for the cylindrical support together with the internal compressed gas, so that the cylindrical support is prevented from being damaged due to concentrated strain force.
In order to facilitate the filling of compressed gas, the upper connecting plate is provided with a high-pressure air filling hole; and an inflatable buffer chamber communicated with the high-pressure inflatable hole is correspondingly formed in the cavity.
Preferably, the cylindrical support has a plurality of cylindrical supports uniformly spaced apart in the vibration reduction mating assembly. The multiple cylinders are arranged, so that the foam rubber plate and compressed gas in the cylinders can uniformly bear the total weight of the upper building, thereby avoiding the problem that a single cylinder support piece is damaged due to concentrated strain force caused by overload bearing or uneven bearing, and avoiding uneven settlement caused by uneven stress.
Preferably, the upper part of the cylindrical supporting piece passes through the middle connecting plate, and the opening end of the cylindrical supporting piece is flush with the upper side surface of the middle connecting plate and is connected by high-strength sealant.
Preferably, the vibration reduction and isolation matching assembly further comprises a horizontal vibration isolation support; the cylindrical supporting piece is arranged in the horizontal vibration isolation support and is used for providing energy consumption damping required by horizontal vibration attenuation.
Preferably, the horizontal vibration isolation support comprises an upper sealing plate connected with the middle connecting plate, a lower sealing plate connected with the lower connecting plate, and a buffer plate assembly positioned between the upper sealing plate and the lower sealing plate; the buffer plate assembly is formed by alternately stacking rubber sheets and stiffening steel plates in sequence, so that the elastic performance of the elastic support is improved.
Preferably, the foamed rubber plate is an integral plate with communicated inner holes, the elastic particles are foamed rubber, and the cylindrical supporting piece is a lead cylinder.
The upper connecting plate and the middle connecting plate are connected in a sealing sliding way, so that the upper connecting plate can move up and down relative to the middle connecting plate, and the size of the cavity is changed;
the connecting parts of the middle connecting plate and the upper connecting plate are assembled in a jogged mode, and when the upper connecting plate and the middle connecting plate are used in opposite directions, interaction force is formed between the two connecting plates so as to prevent the two connecting plates from separating, so that the whole device has a pull-out-resistant function.
Preferably, the upper connecting plate is connected with the building structure positioned on the upper connecting plate through bolts; the lower connecting plate is connected with a building foundation part.
Compared with the prior art, the application has the advantages that: (1) The existing lead cores are replaced by hollow cylindrical supporting pieces which are uniformly distributed on the periphery of the support, so that not only is the space required for vertical vibration isolation provided, but also the energy consumption damping required by horizontal vibration damping is not changed; (2) The middle connecting plate is arranged between the upper connecting plate and the lower connecting plate, the middle connecting plate is connected with the upper connecting plate in a sealing way to form a cavity, the cavity is communicated with the inside of the cylindrical supporting piece, the height required by the cavity is reduced, the height-width ratio of the vibration isolation device is further reduced, and the stability is maintained; (3) The inside of the cavity and the inside of the cylindrical supporting piece are filled with compressed gas, and the pressure intensity of the gas inside the cavity and the inside of the cylindrical supporting piece can be flexibly adjusted due to the rigidity hardening characteristic of the compressed gas, so that the vertical rigidity of the support is increased along with the weight increase of the upper building structure, and the support is beneficial to reducing uneven settlement deformation.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the vibration isolation apparatus of the present application.
Detailed Description
Embodiments of the present application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.
Fig. 1 shows a vibration isolation apparatus of the present application, which includes an upper connection plate 1, a lower connection plate 2, and a vibration reduction and isolation fit assembly 3.
The vibration reduction and isolation fit assembly 3 is located between the upper connecting plate 1 and the lower connecting plate 2, wherein the vibration reduction and isolation fit assembly 3 comprises a middle connecting plate 31 and a cylindrical support member, the middle connecting plate 31 is connected with the upper connecting plate 1 in a sealing manner to form a cavity 10, the cylindrical support member 32 is configured to be vertically arranged in the vibration reduction and isolation fit assembly 3, and an opening end of the cylindrical support member 32 is communicated with the middle connecting plate 31.
In this embodiment, the cylindrical supporting member 32 is a lead cylinder, the opening end of the lead cylinder passes through the middle connecting plate 31 and is flush with the upper side surface of the middle connecting plate 31, the cavity 10 and the lead cylinder 32 are internally provided with a foam rubber plate 33, and compressed gas is filled simultaneously to provide vertical vibration reduction and vibration isolation functions, and in this embodiment, the number of the lead cylinders 32 is multiple and is uniformly distributed in the vibration reduction and isolation matching assembly 3.
The vibration isolation apparatus described above has vertical low stiffness and high damping characteristics, and stiffness hardening characteristics that increase with the weight of the upper building, which means that as the weight of the building structure on which it is located increases, the stiffness of the vibration isolation apparatus also increases. The vertical low-rigidity characteristic of the vibration isolation device can well meet the vertical vibration isolation requirements of traffic environments such as high-speed rails, subways and the like, and the rigidity hardening characteristic of high-pressure air is beneficial to reducing the problem of uneven settlement caused when the weight distribution of an upper building is uneven, and the characteristics are the functions which are not possessed when the steel spring is used for vertical vibration isolation.
The lead core is replaced by the lead cylinder in the past, compressed gas is filled into the lead cylinder, high-pressure air can be skillfully fused with the cavity 10 and the lead cylinder 32, vibration damping is provided for horizontal directions, and meanwhile, the lead cylinder is uniformly distributed on the periphery of the vibration isolation support, so that the high-pressure air in the lead cylinder can uniformly bear the weight of an upper building.
As an improvement of the application, as shown in fig. 1, the cavity 10 and the foamed rubber plate 33 inside the lead cylinder 32 are an integral plate communicated with the inner hole, and the perforated foamed rubber plate 33 is matched with compressed gas to perform vertical vibration isolation.
On the one hand, the air spring formed by the compressed gas in the cavity and the lead cylinder provides vertical bearing capacity for the vibration isolation device together with the foaming rubber plate. Through the common bearing, the pressure intensity required by compressed gas is reduced, and the vertical bearing capacity of the support is improved. On the other hand, when compressed gas shuttles in the holes of the foaming rubber plate, a friction energy consumption mechanism can be generated, so that the damping of the air spring is increased, and the vertical vibration reduction effect of the vibration isolation device is improved. Meanwhile, the combined action of the foaming rubber plate and the high-pressure air can provide lateral constraint for the lead cylinder, so that the horizontal shearing deformation of the lead cylinder is uniform along the height direction during heavy earthquake, the lead cylinder is not broken due to stress concentration of individual parts, and the vibration isolation effect of the vibration isolation device is reduced.
Preferably, the upper connecting plate 1 is provided with a high-pressure air charging hole 11, and an air charging buffer chamber 101 communicated with the high-pressure air charging hole 11 is correspondingly formed in the cavity 10, so that compressed air can be conveniently charged through the high-pressure air charging hole 11.
In this embodiment, the vibration reducing and isolating mating assembly 3 includes a horizontal vibration isolating mount 34, and the lead cylinder 32 is configured to be disposed within the horizontal vibration isolating mount 34. Specifically, the horizontal vibration isolation mount 34 has an upper sealing plate 341 connected to the middle connecting plate 3, a lower sealing plate 342 connected to the lower connecting plate 2, and a buffer plate assembly 343 disposed between the upper sealing plate 341 and the lower sealing plate 342, as shown in fig. 1, the buffer plate assembly 343 is configured to be formed by alternately stacking a rubber sheet 343A and a stiffening steel plate 343B in sequence. The stiffening steel plates 343B and the rubber sheets 343A provide the device with the required elasticity for shock insulation.
With continued reference to fig. 1, in this embodiment, the middle connecting plate 31 is connected with the upper connecting plate 1 in a sealing manner through a sealing rubber ring 35, as shown in the drawing, the middle connecting plate 31 is a horizontal cross plate, the upper connecting plate 1 is formed by a horizontal connecting plate, a vertical connecting plate connected with the horizontal connecting plate and a horizontal plate connected with the vertical connecting plate, the side end of the middle connecting plate 31 is nested in an area of the upper connecting plate 1 formed by enclosing the horizontal plate and the vertical connecting plate, and the sealing rubber ring 35 is located at a connecting position of the middle connecting plate 31 and the upper connecting plate 1, and the shape of the sealing rubber ring is consistent with the section of the connecting position. The middle connecting plate and the upper connecting plate are designed in the mode, when the middle connecting plate and the upper connecting plate move in opposite directions, the horizontal plate can generate interaction force with the middle connecting plate to form antagonism, and then the middle connecting plate and the upper connecting plate are prevented from being separated, so that the device has a pulling-out-resistant function.
It should be noted that, other connection modes may be adopted for the middle connection plate 31 and the upper connection plate 1, and the sealing rubber ring 35 may also be in other shapes, where the upper connection plate 1 is in a horizontal cross plate shape, the middle connection plate 31 is in a bent shape, and the sealing rubber ring 35 is sandwiched between the horizontal plates of the upper connection plate 1 and the middle connection plate 31 and is in the simplest strip shape. The upper connecting plate 1 is embedded in the area surrounded by the bending shape of the middle connecting plate 31, and the bending part of the middle connecting plate 31 can prevent the upper connecting plate 1 from falling off, thereby providing the pulling-out resistance function for the device.
The upper connection plate 1 is connected to a building structure (not shown) located thereon by bolts, and the lower connection plate 2 is configured to be connected to a building foundation (not shown). Of course, other means of connecting the vibration isolation apparatus to the foundation, building, etc. are possible.
The foamed rubber sheet 33 may be replaced by elastic particles, i.e. the elastic particles, such as foamed rubber particles, are uniformly filled in the cavity 10 and the lead cylinder 32, which can achieve the purpose of the present application.
The application can be applied to vertical vibration isolation and horizontal vibration isolation occasions of high-speed traffic and transportation adjacent buildings such as subways, high-speed rails and the like. Other places with higher vibration reduction requirements also have application prospects.
In addition to the above-described modifications, other similar modifications are also included in the scope of the present application, and will not be described in detail herein. While embodiments of the application have been shown and described, it will be understood by those skilled in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. A vibration isolation apparatus comprising:
an upper connection plate (1);
a lower connecting plate (2);
the vibration reduction and isolation matching component (3) is arranged between the upper connecting plate (1) and the lower connecting plate (2);
the method is characterized in that:
the vibration reduction and isolation matching assembly (3) comprises
The middle connecting plate (31), the middle connecting plate (31) is connected with the upper connecting plate (1) in a sealing way, and a cavity (10) is formed between the middle connecting plate and the upper connecting plate (1); and
a tubular supporting piece (32) with a hollow inside, wherein the tubular supporting piece (32) is vertically arranged in the vibration reduction and isolation matching assembly (3);
wherein the open end of the tubular support (32) is communicated with the cavity (10), so that the inside of the tubular support is communicated with the cavity (10); the inside of the cavity (10) and the cylindrical supporting piece (32) are filled with compressed gas;
the upper connecting plate (1) is provided with a high-pressure inflation hole (11);
an inflatable buffer chamber (101) communicated with the high-pressure inflatable hole (11) is correspondingly formed in the cavity (10);
the vibration reduction and isolation matching assembly (3) further comprises a horizontal vibration isolation support (34);
the cylindrical support (32) is arranged in the horizontal vibration isolation support (34).
2. The vibration isolation device according to claim 1, wherein: the inside of the cavity (10) and the tubular supporting piece (32) is also filled with an open-pore foaming rubber plate or elastic particles (33).
3. The vibration isolation device according to claim 1, wherein: the cylindrical supporting pieces (32) are uniformly distributed in the vibration reduction and isolation matching assembly (3) at equal intervals.
4. The vibration isolation device according to claim 1, wherein: the upper part of the cylindrical supporting piece (32) penetrates through the middle connecting plate (31), and the opening end of the cylindrical supporting piece (32) is flush with the upper side surface of the middle connecting plate (31) and is connected by sealant.
5. The vibration isolation device according to claim 1, wherein:
the horizontal vibration isolation support (34) comprises an upper sealing plate (341) connected with the middle connecting plate (31) and a lower sealing plate (342) connected with the lower connecting plate (2),
and a buffer plate assembly (343) between the upper and lower seal plates (341, 342);
the buffer plate assembly (343) is formed by alternately stacking rubber sheets (343A) and stiffening steel plates (343B) in sequence;
the cylindrical supporting piece (32) vertically penetrates through the upper sealing plate (341), the lower sealing plate (342) and the buffer plate assembly (343).
6. The vibration isolation device according to claim 2, wherein:
the foaming rubber plate (33) is an integral plate with communicated inner holes, or the elastic particles are foaming rubber, and the cylindrical supporting piece (32) is a lead cylinder.
7. The vibration isolation device according to claim 1, wherein: the upper connecting plate and the middle connecting plate are in sealed sliding connection, so that the upper connecting plate can move up and down relative to the middle connecting plate, and the size of the cavity (10) is changed;
the connecting parts of the middle connecting plate and the upper connecting plate are assembled in a jogged mode, and interaction force can be formed between the middle connecting plate and the upper connecting plate when the movement directions of the upper connecting plate and the middle connecting plate are opposite, so that the middle connecting plate and the upper connecting plate are prevented from being separated.
8. The vibration isolation device according to claim 1, wherein:
the upper connecting plate (1) and the lower connecting plate (2) are arranged in parallel, and the upper connecting plate (1) is connected with a building structure positioned on the upper connecting plate through bolts; the lower connecting plate (2) is connected with a building foundation part through a pre-buried bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440102.3A CN108396786B (en) | 2018-05-09 | 2018-05-09 | Vibration isolation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810440102.3A CN108396786B (en) | 2018-05-09 | 2018-05-09 | Vibration isolation device |
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| Publication Number | Publication Date |
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| CN108396786A CN108396786A (en) | 2018-08-14 |
| CN108396786B true CN108396786B (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810440102.3A Active CN108396786B (en) | 2018-05-09 | 2018-05-09 | Vibration isolation device |
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| CN (1) | CN108396786B (en) |
Families Citing this family (1)
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| CN109392734B (en) * | 2018-11-05 | 2020-11-10 | 寻乌县昇平农业发展有限公司 | Case is bred to closed rabbit |
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|---|---|---|---|---|
| CN2310093Y (en) * | 1997-07-03 | 1999-03-10 | 赵斌 | Viscous damping laminated-layer rubber support base |
| KR20050077563A (en) * | 2004-01-28 | 2005-08-03 | 배석동 | Air pocket type bridge support |
| CN1932180A (en) * | 2006-10-13 | 2007-03-21 | 北京工业大学 | Level shearing three-dimensional vibration isolating device |
| CN200975036Y (en) * | 2006-10-13 | 2007-11-14 | 北京工业大学 | Bidirectional shearing type vibrating device |
| CN203655993U (en) * | 2013-12-25 | 2014-06-18 | 佛山电力设计院有限公司 | Transformer vibration isolation pad |
| CN204531052U (en) * | 2015-04-16 | 2015-08-05 | 陕西永安减震科技有限公司 | Novel three-dimensional shock isolating pedestal |
| JP2016080051A (en) * | 2014-10-15 | 2016-05-16 | オイレス工業株式会社 | Base isolation support device |
| JP2017031723A (en) * | 2015-08-04 | 2017-02-09 | 住友金属鉱山シポレックス株式会社 | Base-isolating device |
| CN208545777U (en) * | 2018-05-09 | 2019-02-26 | 宁波大学 | A kind of isolation mounting |
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2018
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|---|---|---|---|---|
| CN2310093Y (en) * | 1997-07-03 | 1999-03-10 | 赵斌 | Viscous damping laminated-layer rubber support base |
| KR20050077563A (en) * | 2004-01-28 | 2005-08-03 | 배석동 | Air pocket type bridge support |
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| JP2016080051A (en) * | 2014-10-15 | 2016-05-16 | オイレス工業株式会社 | Base isolation support device |
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