CN103122969A - Three-dimensional shock isolation device - Google Patents

Three-dimensional shock isolation device Download PDF

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Publication number
CN103122969A
CN103122969A CN2013100443556A CN201310044355A CN103122969A CN 103122969 A CN103122969 A CN 103122969A CN 2013100443556 A CN2013100443556 A CN 2013100443556A CN 201310044355 A CN201310044355 A CN 201310044355A CN 103122969 A CN103122969 A CN 103122969A
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cylindricality
elastomer
vertical
isolation device
inclination
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CN103122969B (en
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刘文光
伊玛目·穆斯塔法
何文福
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University of Shanghai for Science and Technology
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University of Shanghai for Science and Technology
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Abstract

The invention discloses a three-dimensional shock isolation device. The three-dimensional shock isolation device comprises at least one three-dimensional shock isolation unit arranged between two embedded plates. Each three-dimensional shock isolation unit is composed of a horizontal shock isolation device and a vertical shock isolation device, wherein the horizontal shock isolation device and the vertical shock isolation are arranged in a vertical series connection mode. The horizontal shock isolation device is a vertical column-shaped elastic body arranged in a vertical mode in the axial direction, and the horizontal shock isolation device carries out elastic deformation through radial displacement deformation and torsion angle displacement deformation of the vertical column-shaped elastic body. The vertical shock isolation device is formed by parallel connection of at least three inclined column-shaped elastic bodies with equal dimensions so as to form a winding assembly body space structure, and therefore vertical deformation stood by the vertical shock isolation device is converted into inclined displacement and torsion placement of the inclined column-shaped elastic bodies. The three-dimensional shock isolation device can isolate three-way earthquake and environment vibration at the same time, and therefore shock/vibration response and shock/vibration delivery of a protected structure or device adopting the three-dimensional shock isolation device and under the effects of earthquake/the vibration can be controlled effectively, and safety under the effects of earthquake/the vibration can be guaranteed.

Description

Three-dimensional isolation device
Technical field
The present invention relates to a kind of building, special construction, bridge or machinery damping/vibrating device, a kind of multi-angle shock-proof device particularly is widely used in ambient vibration and shockproof, earthquake-proofing technique field.
Background technique
Along with the development of modern industry and the expansion of urban size, the ambient vibration and the noise problem that are caused by numerous vibrations such as industrial machinery and track traffic display gradually, and ambient vibration has become one of seven large public hazards that affect human lives and production.The physical and mental health of ambient vibration to the mankind itself, the travelling comfort that life is lived, and the production of precision type instrument all produces and has a strong impact on.For example Subway Vibration all exerts an influence to architecture production, the safety of heritage building and the living environment of dwelling house around along the line.How to reduce the small resonance that produces due to external disturbance, Anti-vibration Design is significant.
Violent earthquake is one of serious natural disaster that threatens the mankind.Horizontal seismic isolation structural system has reduced the earthquake response of structure by extending natural vibration period and the structural damping of superstructure, guarantees that superstructure still can be in elastic state when violent earthquake, or remains on the A-stage of elasto plastic deformation.Seismic isolation technology has not only guaranteed the safety of structure itself, has also protected structure internal unit, facility to avoid destroying.
For the three-dimensional isolation device of isolating simultaneously earthquake and vibration, due to being coupled of level and vertical motion effect, make this shock-proof device become international headache.At present, for a stable three-dimensional shock isolation support alleviates level and Vertical Earthquake Loads had had a lot of trials by inventing.Many three-dimensional isolation devices have carried out the feasibility test, mainly utilize pneumatic spring and hydraulic oil to carry out vertical earthquake isolating.A lot of three-dimensional isolation devices all have good vertical earthquake isolating performance or damping capacity.But the shortcoming of these equipment can not be ignored, because they are very expensive, and shape matching is large comparatively speaking, thereby has limited the possibility of its mass production.
Summary of the invention
In order to solve the prior art problem; the object of the invention is to overcome the deficiency that prior art exists; a kind of three-dimensional isolation device is provided; can isolate simultaneously three dimensional earthquake and ambient vibration; adopt protected structure or its shake/vibratory response and shake/vibration transmission under earthquake/effect of vibration of equipment of this device to be effectively controlled, the safety under protection earthquake/effect of vibration.
Create purpose for reaching foregoing invention, the present invention adopts following technical proposals:
A kind of three-dimensional isolation device; comprise at least one three-dimensional isolation device unit that is arranged between two built-in boards; two built-in boards are fixedly connected with by joint with the cushion cap up and down of protected facility or equipment respectively; joint adopts thread connecting mode; the internal thread that namely is embedded in the coupling sleeve of up and down in the cushion cap tight joint that matches with the outside thread of the attachment bolt of fastening built-in board; the three-dimensional isolation device unit is made of to shock-proof device and vertical earthquake isolating equipment the level that vertically is installed in series up and down, is specially:
level is the vertical cylindricality elastomer of axially vertically installing to shock-proof device, the vertical elastomeric end of cylindricality connects end plate with level and is fixedly connected with, vertically the elastomeric the other end of cylindricality rotates with the positive rotational slide face of rotation transition joining plate and connects and axial restraint, form the horizontal seismic isolation bearing, make the elastomeric end of vertical cylindricality connect the direct carrying of end plate from the vertical load of protected facility or equipment by level, vertically the cylindricality elastomer has vertical constant bearing capacity, make level to the shock-proof device resiliently deformable by vertical cylindricality elastomer generation radial displacement distortion and torsion angle displacement deformation, and then the level that realizes is carried out delayed response and buffering transmission to the level from protected facility or equipment to load to shock-proof device, thereby the level that realizes is to shock insulation,
vertical earthquake isolating equipment is in parallel by the inclination cylindricality elastomer of at least 3 equidimension specifications, each cylindricality elastomer that tilts all is obliquely installed, the elastomeric inclination torsional direction of each cylindricality that tilts is consistent, and according to carrying out clockwise or counterclockwise spatial arrangement, calculative determination is carried out according to the vertical load of protected facility or equipment and required vertical displacement in the elastomeric angle of inclination of inclination cylindricality, and adjust between 0 °~90 °, form the torsion bundle columniation structure of one group of symmetrically arranged twist shape of spatial structure, reverse the bundled tube structure or reverse bundle column casing mixed construction, the horizontal deformation-recovery of the reservation space between the cylindricality elastomer that respectively tilts of vertical earthquake isolating equipment, the projection of each inclination cylindricality elastomer of vertical earthquake isolating equipment on the same level cross section is evenly arranged on same circumference, the diameter of this circumference is according to the horizontal dimension size of vertical earthquake isolating equipment, the elastomeric oblique shift length of inclination cylindricality and level are determined to the horizontal dimension size of shock-proof device, two ends, the elastomeric up and down of each inclination cylindricality are fixedly connected with respectively the slope levelling and connect rigid body, form vertically to damping support, the two ends that each slope levelling connects rigid body are fixedly connected with respectively a rigid body slope panel and a rigid body horizontal panel, each inclination cylindricality elastomer connects rigid body with two slope levellings rigid body slope panel is fixedly connected, the rigid body horizontal panel that one of them slope levelling connects rigid body is fixedly connected with the reverse side junction plane of rotation transition joining plate, the rigid body horizontal panel that another slope levelling connects rigid body is fixedly connected with built-in board, make inclination cylindricality elastomer and the cushion cap up and down of protected facility or equipment be fixedly connected with and directly carry vertical load from protected facility or equipment, be that the three-dimensional isolation device unit comprises a vertical cylindricality elastomer and one group of inclination cylindricality elastomer, inclination cylindricality elastomer connects rigid body by the slope levelling that its two ends are fixedly connected with, make the vertical deformation of its superstructure of carrying and substructure be converted to the elastomeric oblique displacement of inclination cylindricality and torsional displacement, realize the resiliently deformable of vertical earthquake isolating equipment, and then realize that vertical earthquake isolating equipment is to carrying out delayed response and buffering transmission from the vertical load of protected facility or equipment, thereby realize vertical earthquake isolating.
The elastomeric material of above-mentioned vertical cylindricality is preferably rubber.
The elastomeric diameter of above-mentioned vertical cylindricality is greater than the elastomeric diameter of inclination cylindricality.
As the preferred technological scheme of the present invention, the vertical earthquake isolating equipment in the three-dimensional isolation device unit comprises 3 inclination cylindricality elastomers, forms to be wound around the assemblying body spatial structure.
As the further preferred technological scheme of the present invention, vertical earthquake isolating equipment also comprises the Horizontal displacement block, the Horizontal displacement block makes vertical earthquake isolating equipment that the integral level displacement not occur, and only makes the cylindricality elastomer generation diagonal distortion that respectively tilts, and makes the slope levelling connect rigid body and occurs vertically to displacement.
The present invention has following apparent outstanding substantive distinguishing features and remarkable advantage compared with prior art:
1. horizontal seismic isolation bearing of the present invention provides little horizontal rigidity, inclination cylindricality elastomer provides little vertical rigidity by oblique Horizontal displacement, shock-proof device can realize level of isolation to vertical earthquake and vibration function, thereby realize the purpose of three-dimensional damping/shake, three-dimensional isolation device of the present invention can make top-out or protected object all be protected when level and vertical motion and earthquake are arranged, make the vibration transmission of vibratory equipment obtain effective attenuation, be applicable to earthquake and the vibration protection of building structure, main equipment;
2. the present invention can adjust the various angles of inclination cylindricality elastomer, thereby adapt to different displacements and load, and can adjust the composition of this device, size and the relation between bearing capacity of this device are not constant, can satisfy different loads and not change its size.
Description of drawings
Fig. 1 is the mounting structure schematic diagram of the three-dimensional isolation device of the embodiment of the present invention one.
Fig. 2 is the structural representation of the three-dimensional isolation device of the embodiment of the present invention one.
Fig. 3 is that the level of the embodiment of the present invention one is to the structural representation of shock-proof device.
Fig. 4 is the structural representation of the rotation transition joining plate of the embodiment of the present invention one.
Fig. 5 is the structural representation that the slope levelling of the embodiment of the present invention one connects rigid body.
Fig. 6 is the elastomeric structural representation of inclination cylindricality of the embodiment of the present invention one.
Fig. 7 is the three-dimensional isolation device structural representation of the vertical earthquake isolating equipment up-set type of the embodiment of the present invention two.
Embodiment
Details are as follows for the preferred embodiments of the present invention:
Embodiment one:
Referring to Fig. 1~6, in the present embodiment, the vertical earthquake isolating equipment of three-dimensional isolation device adopts underneath type to install.
three-dimensional isolation device comprises at least one three-dimensional isolation device unit that is arranged between two built-in boards 3, two built-in boards 3 are fixedly connected with by joint with the cushion cap up and down 1 of protected facility or equipment respectively, joint adopts thread connecting mode, the internal thread that namely is embedded in the coupling sleeve 2 of up and down in cushion cap 1 tight joint that matches with the outside thread of the attachment bolt 9 of fastening built-in board 3, the three-dimensional isolation device unit is made of to shock-proof device and vertical earthquake isolating equipment the level that vertically is installed in series up and down, vertical earthquake isolating equipment is placed on level to the bottom of shock-proof device, be specially: level is to the vertical cylindricality elastomer 11 of shock-proof device for axially vertically installing, one end of vertical cylindricality elastomer 11 connects end plate 10 and is fixedly connected with level, vertically the other end of cylindricality elastomer 11 rotates with the positive rotational slide face 12 of rotation transition joining plate 5 and connects and axial restraint, form horizontal seismic isolation bearing 4, make an end of vertical cylindricality elastomer 11 connect the direct carrying of end plate 10 from the vertical load of protected facility or equipment by level, vertically cylindricality elastomer 11 has vertical constant bearing capacity, make level to the shock-proof device resiliently deformable by vertical cylindricality elastomer 11 generation radial displacement distortion and torsion angle displacement deformation, and then the level that realizes is carried out delayed response and buffering transmission to the level from protected facility or equipment to load to shock-proof device, thereby the level that realizes is to shock insulation, vertical earthquake isolating equipment is by inclination cylindricality elastomer 8 parallel connections of 3 equidimension specifications, each cylindricality elastomer 8 that tilts all is obliquely installed, the inclination torsional direction of each cylindricality elastomer 8 that tilts is consistent, and according to carrying out clockwise or counterclockwise spatial arrangement, calculative determination is carried out according to the vertical load of protected facility or equipment and required vertical displacement in the angle of inclination of inclination cylindricality elastomer 8, and adjust between 0 °~90 °, form the torsion bundle columniation structure of one group of symmetrically arranged twist shape of spatial structure, reverse the bundled tube structure or reverse the winding assemblying body spatial structure of restrainting the column casing mixed construction, the horizontal deformation-recovery of the reservation space between cylindricality elastomer 8 that respectively tilts of vertical earthquake isolating equipment, the projection of each inclination cylindricality elastomer 8 of vertical earthquake isolating equipment on the same level cross section is evenly arranged on same circumference, the diameter of this circumference is according to the horizontal dimension size of vertical earthquake isolating equipment, the oblique shift length of inclination cylindricality elastomer 8 and level are determined to the horizontal dimension size of shock-proof device, the two ends up and down of each inclination cylindricality elastomer 8 are fixedly connected with respectively the slope levelling and connect rigid body 6, 7, form vertically to damping support, each slope levelling connects rigid body 6, 7 two ends are fixedly connected with respectively a rigid body slope panel 13 and a rigid body horizontal panel 14, each inclination cylindricality elastomer 8 connects rigid body 6 with two slope levellings, 7 rigid body slope panel 13 is fixedly connected, one of them slope levelling connects rigid body 6, 7 rigid body horizontal panel 14 is fixedly connected with the reverse side junction plane of rotation transition joining plate 5, another slope levelling connects rigid body 6, 7 rigid body horizontal panel 14 is fixedly connected with built-in board 3, make inclination cylindricality elastomer 8 and the cushion cap up and down 1 of protected facility or equipment be fixedly connected with and directly carry vertical load from protected facility or equipment, be that the three-dimensional isolation device unit comprises a vertical cylindricality elastomer 11 and one group of inclination cylindricality elastomer 8, inclination cylindricality elastomer 8 connects rigid body 6 by the slope levelling that its two ends are fixedly connected with, 7, make the vertical deformation of its superstructure of carrying and substructure be converted to oblique displacement and the torsional displacement of inclination cylindricality elastomer 8, realize the resiliently deformable of vertical earthquake isolating equipment, and then realize that vertical earthquake isolating equipment is to carrying out delayed response and buffering transmission from the vertical load of protected facility or equipment, thereby realize vertical earthquake isolating.In the present embodiment, under earthquake/effect of vibration, vertically cylindricality elastomer 11 provides little radial rigidity, be also that vertical cylindricality elastomer 11 has the axial constant bearing capacity, less radial rigidity reaches larger radial deformation capabilities, make vertical cylindricality elastomer 11 generation radial displacement distortion and torsion angle displacement deformation make level to the shock-proof device resiliently deformable, can realize the horizontal seismic isolation/function of shaking.Inclination cylindricality elastomer 8 provides little vertical rigidity, the short cylindrical elastomer 8 that also namely tilts has radially constant bearing capacity, less axial rigidity reaches larger axial deformation ability, make vertical earthquake isolating equipment radial displacement occur or along inclination short cylindrical elastomer 8 outer side surface generation tangential displacements, can realize the vertical earthquake isolating/function of shaking by the inclination short cylindrical elastomer 8 that tilts.Can be by adjusting inclination short cylindrical elastomer 8 various angles, thus adapt to different displacements and load, realize level of isolation to vertical earthquake and vibration function, and can adjust composition and the structure of the present embodiment three-dimensional isolation device.Because can satisfying different loads, the present embodiment three-dimensional isolation device do not change its size, so the size of three-dimensional isolation device and the relation between bearing capacity are not constant.
The purpose of the present embodiment three-dimensional isolation device is to realize horizontal shock-absorbing/shake by level to shock-proof device, realizes vertical damping/shake by the tilt displacement of vertical earthquake isolating equipment, thereby realizes the purpose of three-dimensional damping/shake.The present embodiment three-dimensional isolation device can make top-out or protected object all be protected when level and vertical motion and earthquake are arranged, and makes the vibration transmission of vibratory equipment obtain effective attenuation.The present embodiment three-dimensional isolation device is applicable to earthquake and the vibration protection of building structure, main equipment.
In the present embodiment, vertically the diameter of cylindricality elastomer 11 is greater than the diameter of inclination cylindricality elastomer 8, level is adapted to the bearing capacity of shock-proof device and vertical earthquake isolating equipment, can realize stablizing, reliable shock insulation, effectively dissolve the energy with collapsing force that earthquake and vibration discharge.
Embodiment two:
The present embodiment and embodiment one are basic identical, and specialization is:
In the present embodiment, referring to Fig. 7, the vertical earthquake isolating equipment of three-dimensional isolation device adopts up-set type to install, and namely vertical earthquake isolating equipment is placed on level to shock-proof device top, can realize equally the technique effect of applying three-dimensional shock-proof device shock insulation in embodiment one.
Embodiment three:
The present embodiment and previous embodiment are basic identical, and specialization is:
In the present embodiment, vertically the material of cylindricality elastomer 11 and inclination cylindricality elastomer 8 is all rubber, and rubber has good elastic resilience, can adapt to the damping occasion of heavy load, and under the abominable operating mode of other environment.
Embodiment four:
The present embodiment and previous embodiment are basic identical, and specialization is:
In the present embodiment, vertical earthquake isolating equipment also comprises the Horizontal displacement block, the Horizontal displacement block makes vertical earthquake isolating equipment that the integral level displacement not occur, and only makes the cylindricality elastomer 8 that respectively tilts that diagonal distortion occurs, and makes the slope levelling connect rigid body 6,7 and occurs vertically to displacement.In the present embodiment, the Horizontal displacement block can carry out resiliently deformable by operative constraint inclination cylindricality elastomer 8 in lower than the scope of rupture strength or fatigue strength, and anti-locking apparatus unstability in the working life of improving vertical earthquake isolating equipment, improves shock insulation stability.
The above is illustrated the embodiment of the present invention by reference to the accompanying drawings; but the invention is not restricted to above-described embodiment; can also make multiple variation according to the purpose of innovation and creation of the present invention; all according to technical solution of the present invention Spirit Essence and principle under make change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence; as long as goal of the invention according to the invention, only otherwise deviate from know-why and the inventive concept of three-dimensional isolation device of the present invention, all belong to protection scope of the present invention.

Claims (10)

1. three-dimensional isolation device, comprise at least one three-dimensional isolation device unit that is arranged between two built-in boards (3), two described built-in boards (3) are fixedly connected with by joint with the cushion cap up and down (1) of protected facility or equipment respectively, described joint adopts thread connecting mode, the internal thread that namely is embedded in the coupling sleeve (2) in described up and down cushion cap (1) tight joint that matches with the outside thread of the attachment bolt (9) of fastening described built-in board (3), it is characterized in that, the three-dimensional isolation device unit is made of to shock-proof device and vertical earthquake isolating equipment the level that vertically is installed in series up and down, be specially:
described level is the vertical cylindricality elastomer (11) of axially vertically installing to shock-proof device, one end of described vertical cylindricality elastomer (11) connects end plate (10) and is fixedly connected with level, the other end of described vertical cylindricality elastomer (11) rotates with the positive rotational slide face (12) of rotation transition joining plate (5) and connects and axial restraint, form horizontal seismic isolation bearing (4), make an end of described vertical cylindricality elastomer (11) connect the direct carrying of end plate (10) from the vertical load of protected facility or equipment by described level, described vertical cylindricality elastomer (11) has vertical constant bearing capacity, make described level to the shock-proof device resiliently deformable by described vertical cylindricality elastomer (11) generation radial displacement distortion and torsion angle displacement deformation, and then realize described level to shock-proof device to carrying out delayed response and buffering is transmitted from the level of protected facility or equipment to load, thereby the level that realizes is to shock insulation,
described vertical earthquake isolating equipment is by inclination cylindricality elastomer (8) parallel connection of at least 3 equidimension specifications, each described inclination cylindricality elastomer (8) all is obliquely installed, the inclination torsional direction of each described inclination cylindricality elastomer (8) is consistent, and according to carrying out clockwise or counterclockwise spatial arrangement, calculative determination is carried out according to the vertical load of protected facility or equipment and required vertical displacement in the angle of inclination of described inclination cylindricality elastomer (8), and adjust between 0 °~90 °, form the torsion bundle columniation structure of one group of symmetrically arranged twist shape of spatial structure, reverse the bundled tube structure or reverse bundle column casing mixed construction, the horizontal deformation-recovery of the reservation space between cylindricality elastomer (8) that respectively tilts of described vertical earthquake isolating equipment, the projection of each inclination cylindricality elastomer (8) of described vertical earthquake isolating equipment on the same level cross section is evenly arranged on same circumference, the diameter of this circumference is according to the horizontal dimension size of vertical earthquake isolating equipment, the oblique shift length of described inclination cylindricality elastomer (8) and level are determined to the horizontal dimension size of shock-proof device, the two ends up and down of each described inclination cylindricality elastomer (8) are fixedly connected with respectively the slope levelling and connect rigid body (6, 7), form vertically to damping support, each described slope levelling connects rigid body (6, 7) two ends are fixedly connected with respectively a rigid body slope panel (13) and a rigid body horizontal panel (14), each described inclination cylindricality elastomer (8) connects rigid body (6 with two described slope levellings, 7) described rigid body slope panel (13) is fixedly connected, one of them described slope levelling connects rigid body (6, 7) described rigid body horizontal panel (14) is fixedly connected with the reverse side junction plane of described rotation transition joining plate (5), another described slope levelling connects rigid body (6, 7) described rigid body horizontal panel (14) is fixedly connected with described built-in board (3), make described inclination cylindricality elastomer (8) and the cushion cap up and down (1) of protected facility or equipment be fixedly connected with and directly carry vertical load from protected facility or equipment, be that the three-dimensional isolation device unit comprises a vertical cylindricality elastomer (11) and one group of inclination cylindricality elastomer (8), described inclination cylindricality elastomer (8) connects rigid body (6 by the described slope levelling that its two ends are fixedly connected with, 7), make the vertical deformation of its superstructure of carrying and substructure be converted to oblique displacement and the torsional displacement of described inclination cylindricality elastomer (8), realize the resiliently deformable of described vertical earthquake isolating equipment, and then realize that described vertical earthquake isolating equipment is to carrying out delayed response and buffering transmission from the vertical load of protected facility or equipment, thereby realize vertical earthquake isolating.
2. three-dimensional isolation device according to claim 1, it is characterized in that: the material of described vertical cylindricality elastomer (11) is rubber.
3. three-dimensional isolation device according to claim 2, it is characterized in that: the material of described inclination cylindricality elastomer (8) is rubber.
4. the described three-dimensional isolation device of any one according to claim 1~3, it is characterized in that: the diameter of described vertical cylindricality elastomer (11) is greater than the diameter of described inclination cylindricality elastomer (8).
5. the described three-dimensional isolation device of any one according to claim 1~3 is characterized in that: the vertical earthquake isolating equipment in described three-dimensional isolation device unit comprises 3 inclination cylindricality elastomers (8), forms and is wound around the assemblying body spatial structure.
6. three-dimensional isolation device according to claim 4 is characterized in that: the vertical earthquake isolating equipment in described three-dimensional isolation device unit comprises 3 inclination cylindricality elastomers (8), forms and is wound around the assemblying body spatial structure.
7. the described three-dimensional isolation device of any one according to claim 1~3, it is characterized in that: described vertical earthquake isolating equipment also comprises the Horizontal displacement block, described Horizontal displacement block makes described vertical earthquake isolating equipment that the integral level displacement not occur, and only make each described inclination cylindricality elastomer (8) that diagonal distortion occurs, make the levelling of described slope connect rigid body (6,7) and occur vertically to displacement.
8. three-dimensional isolation device according to claim 4, it is characterized in that: described vertical earthquake isolating equipment also comprises the Horizontal displacement block, described Horizontal displacement block makes described vertical earthquake isolating equipment that the integral level displacement not occur, and only make each described inclination cylindricality elastomer (8) that diagonal distortion occurs, make the levelling of described slope connect rigid body (6,7) and occur vertically to displacement.
9. three-dimensional isolation device according to claim 5, it is characterized in that: described vertical earthquake isolating equipment also comprises the Horizontal displacement block, described Horizontal displacement block makes described vertical earthquake isolating equipment that the integral level displacement not occur, and only make each described inclination cylindricality elastomer (8) that diagonal distortion occurs, make the levelling of described slope connect rigid body (6,7) and occur vertically to displacement.
10. three-dimensional isolation device according to claim 6, it is characterized in that: described vertical earthquake isolating equipment also comprises the Horizontal displacement block, described Horizontal displacement block makes described vertical earthquake isolating equipment that the integral level displacement not occur, and only make each described inclination cylindricality elastomer (8) that diagonal distortion occurs, make the levelling of described slope connect rigid body (6,7) and occur vertically to displacement.
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