CN112431317A - Three-dimensional shock insulation support with resistance to plucking performance - Google Patents

Three-dimensional shock insulation support with resistance to plucking performance Download PDF

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Publication number
CN112431317A
CN112431317A CN202011304646.0A CN202011304646A CN112431317A CN 112431317 A CN112431317 A CN 112431317A CN 202011304646 A CN202011304646 A CN 202011304646A CN 112431317 A CN112431317 A CN 112431317A
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CN
China
Prior art keywords
limiting cylinder
sealing piece
pulling
seismic isolation
connecting plate
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Pending
Application number
CN202011304646.0A
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Chinese (zh)
Inventor
刘良坤
胡业荣
荀非凡
潘兆东
艾心荧
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Dongguan University of Technology
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Dongguan University of Technology
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Publication date
Application filed by Dongguan University of Technology filed Critical Dongguan University of Technology
Priority to CN202011304646.0A priority Critical patent/CN112431317A/en
Publication of CN112431317A publication Critical patent/CN112431317A/en
Pending legal-status Critical Current

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    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04BGENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92Protection against other undesired influences or dangers
    • E04B1/98Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/04Bearings; Hinges
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04HBUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/02Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate withstanding earthquake or sinking of ground
    • E04H9/021Bearing, supporting or connecting constructions specially adapted for such buildings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16FSPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F16F15/08Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means with rubber springs ; with springs made of rubber and metal

Abstract

The invention relates to the field of seismic isolation supports, in particular to a three-dimensional seismic isolation support with anti-pulling performance. The support comprises an upper sealing piece, a limiting cylinder, a connecting plate and a lower sealing piece which are sequentially arranged from top to bottom, wherein the limiting cylinder is of a barrel-shaped structure, and a damping component is arranged in the limiting cylinder; the upper sealing part is connected to the top surface of the damping component, and the top surface, the peripheral side surfaces and the bottom surface of the damping component are respectively vulcanized with the upper sealing part, the peripheral inner wall of the limiting cylinder and the connecting plate into a whole; the lower sealing piece is connected with the limiting cylinder through a connecting plate; and connecting holes are reserved in the upper sealing piece and the lower sealing piece. The shock insulation device is simple in structure and convenient to install, solves the problem of horizontal shock insulation, and simultaneously ensures vertical shock insulation performance and has better vertical bearing capacity and tensile capacity.

Description

Three-dimensional shock insulation support with resistance to plucking performance
Technical Field
The invention relates to the field of seismic isolation supports, in particular to a three-dimensional seismic isolation support with anti-pulling performance.
Background
Earthquake is a nature calamity that proruption nature just has very big destructive power, and the destruction of house when the shock insulation technique can alleviate earthquake effectively, and current shock insulation support includes: the rubber shock isolation support is a basic shock isolation device which is mostly researched and relatively mature in application at present, and a large number of rubber shock isolation supports are adopted in existing engineering projects in China, including houses, bridges, highways and the like. Most of the existing seismic isolation supports only consider reducing the influence of horizontal seismic action on the structure, but the actual seismic action is multidimensional. At present, the research on horizontal seismic isolation technology is mature, but many earthquake disasters show that the damage of vertical vibration of an earthquake to some important buildings cannot be ignored. Vertical shock insulation not only needs to meet the requirement of relatively small vertical rigidity, but also needs to ensure that the vertical shock insulation has large vertical bearing capacity and pulling resistance, and therefore the development of the vertical shock insulation technology is limited to a certain extent.
Chinese patent publication No. CN109594673A discloses a linked bidirectional vibration-isolating support system in 2019-04-09, which connects vibration-isolating supports into a system to reduce horizontal vibration and vertical vibration of a building under the action of an earthquake. However, the technical scheme has the disadvantages of complex structure, large parts and complex assembly.
Disclosure of Invention
The three-dimensional shock insulation support with the anti-pulling performance is simple in structure, convenient to assemble, disassemble, replace and maintain, capable of enhancing vertical shock insulation and anti-pulling performance, and integrates the three-dimensional shock insulation support and the anti-pulling function into a whole.
In order to solve the technical problems, the invention adopts the technical scheme that:
a three-dimensional shock insulation support with pulling resistance comprises an upper sealing piece, a limiting cylinder, a connecting plate and a lower sealing piece which are sequentially arranged from top to bottom, wherein the limiting cylinder is of a hollow structure, and a shock absorption assembly is arranged in the limiting cylinder; the upper sealing part is connected to the top surface of the damping component, and the top surface, the peripheral side surfaces and the bottom surface of the damping component are respectively vulcanized with the upper sealing part, the peripheral inner wall of the limiting cylinder and the connecting plate into a whole; the lower sealing piece is connected with the limiting cylinder through a connecting plate; and connecting holes are reserved in the upper sealing piece and the lower sealing piece.
The shock insulation support is mainly used for various buildings, bridges and large-span structures which need to consider vertical shock insulation, and can reduce horizontal internal force caused by temperature action to a certain extent due to the fact that the horizontal direction has no constraint effect. Generally, will seal down the piece and be connected with foundation structure, will seal up the piece and treat that the shock insulation structure is connected, when the earthquake takes place, through the connecting plate with seal down between the slip, solved the problem of horizontal direction shock insulation, guarantee vertical shock insulation performance and possess better vertical bearing capacity and tensile property because of the cushioning effect between connecting plate, spacing section of thick bamboo and the shock-absorbing component again. The device needs to be matched with other shock insulation devices with horizontal recovery performance for use, so that reasonable horizontal rigidity required by a shock insulation layer of a structure can be effectively adjusted, and an upper structure is protected from being damaged in an earthquake.
Further, a polytetrafluoroethylene coating is coated between the connecting plate and the lower sealing piece. The teflon coating is less abrasive and can be adjusted as desired.
Furthermore, one side of the connecting plate is fixedly connected with the bottom of the limiting cylinder through a bolt piece, and the other side of the connecting plate is bonded with the polytetrafluoroethylene coating. The connecting plate slides through the sliding friction of the polytetrafluoroethylene coating and the lower sealing piece, and the shock insulation in the horizontal direction can be realized. Wherein the bolt piece adopts a high-strength bolt.
Furthermore, the damping component comprises a plurality of thick rubber layers with high damping performance and a plurality of steel plate layers, the thick rubber layers and the steel plate layers are arranged at intervals and are connected in a vulcanization mode, and the thick rubber layers are arranged on two sides of each steel plate layer. Thick rubber layer vulcanizes in turn with the steel deck and coheres, and sets up in spacing section of thick bamboo, and rubber is in three-dimensional stress state, can guarantee that it possess good vertical shock insulation and vertical power consumption performance simultaneously on having higher vertical bearing capacity basis.
Furthermore, the inside of the limiting cylinder is filled with the shock insulation assembly, so that the shock insulation assembly is in a three-dimensional stress state.
Furthermore, a limiting block protrudes from the outer side wall of the limiting cylinder, and the lower sealing piece is correspondingly provided with a first bayonet for limiting the limiting block to vertically move; when the clamping device is static, the limiting block and the first bayonet are in a separated state. When an earthquake occurs, under the conditions of horizontal vibration and vertical vibration, the limiting block intermittently contacts with the first bayonet to limit the motion amplitude of the limiting cylinder, so that the limiting cylinder is not easy to fall off.
Furthermore, a clamping part is arranged at the edge of the upper sealing part, a second bayonet for limiting the upper sealing part is arranged at the top of the limiting cylinder, and the shape of the second bayonet is matched with that of the clamping part; when static, joint portion and second bayonet socket are the separation state. The joint portion cooperates with the second bayonet socket, and mainly used restriction rubber layer is at the deformation range under vertical vibrations, ensures that the upper seal connects stably.
Furthermore, the clamping part is of a stepped structure and comprises a step section and a step wall section, wherein an occlusion section extends from one end, far away from the step section, of the step wall section, the occlusion section is parallel to the step section, and the length of the occlusion section is smaller than that of the step wall section; in the vertical direction, the length of the second bayonet is smaller than the length of the ladder wall section. The stair structure is one-level ladder, and the terraced platform section is the right angle with the terraced wall section and is connected, similar with ordinary ladder.
Furthermore, the upper sealing part, the limiting cylinder and the lower sealing part are integrally in a cylindrical shape and have uniform wall thickness.
Furthermore, the connecting holes are uniformly and symmetrically distributed around the circumferential direction. The connecting hole is mainly used for connecting an external structure or equipment, generally adopts components such as bolts and the like to be detachably connected, and is convenient to assemble.
Compared with the prior art, the invention has the beneficial effects that: the invention discloses a three-dimensional shock-insulation support with anti-pulling performance,
(1) the structure is simple, the installation is convenient, the problem of horizontal shock insulation is solved, and the vertical shock insulation performance, the good vertical bearing capacity and the good tensile capacity are ensured;
(2) the horizontal shock insulation is realized through the sliding friction between the polytetrafluoroethylene coating and the lower sealing plate, and the horizontal shock insulation is required to be combined with other shock insulation supports with horizontal recovery performance to realize the optimal shock insulation performance;
(3) the vertical shock insulation has good vertical bearing capacity and excellent vertical shock insulation performance through the restraint of the rubber layer, the steel plate layer and the limiting cylinder on the rubber;
(4) the first bayonet and the second bayonet are arranged for enhancing the reliability of the support, and the support is ensured to be stably connected when an earthquake occurs.
Drawings
Fig. 1 is a top view of the overall structure of the present invention.
Fig. 2 is a sectional view taken along the plane a-a.
Fig. 3 is a sectional view taken along the plane B-B.
Fig. 4 is a partial enlarged view at C.
Wherein, 1 go up a sealing, 2 spacing section of thick bamboo, 3 connecting plates, 4 lower seals, 5 damper unit, 6 connecting holes, 7 polytetrafluoroethylene coatings, 51 thick rubber layers, 52 steel deck, 8 stopper, 9 first bayonet sockets, 10 joint portion, 11 second bayonet sockets, 12 bolt spare, 101 step section, 102 step wall section, 103 interlock section.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
Example 1
As shown in fig. 1-3, an embodiment of the present invention provides a three-dimensional seismic isolation bearing with a pull-out resistance, which includes an upper sealing member 1, a limiting cylinder 2, a connecting plate 3, and a lower sealing member 4, which are sequentially arranged from top to bottom, where the upper sealing member 1, the limiting cylinder 2, and the lower sealing member 4 are integrally cylindrical, the limiting cylinder 2 is a hollow structure, and the limiting cylinder 2 is filled with a damping component 5.
Specifically, the upper seal part 1 is connected to the top surface of the shock absorption component 5, and the top surface, the peripheral side surfaces and the bottom surface of the shock absorption component 5 are respectively vulcanized with the upper seal part 1, the peripheral inner wall of the limiting cylinder 2 and the upper surface of the connecting plate 3 into a whole. Specifically, damper 5 includes a plurality of thick rubber layers 51 and a plurality of steel deck 52, and thick rubber layer 51 and steel deck 52 alternate setting and vulcanization are connected, and steel deck 52 both sides are thick rubber layer 51, and rubber is in three-dimensional stress state, can guarantee that it possess good vertical shock insulation performance simultaneously on having higher vertical bearing capacity basis. In the embodiment, the vibration isolation assembly 5 is filled in the limiting cylinder 2, so that the vibration isolation assembly 5 is in a three-way stress state.
Meanwhile, the lower sealing part 4 is connected with the limiting cylinder 2 through the connecting plate 3, a polytetrafluoroethylene coating 7 is arranged between the connecting plate 3 and the lower sealing part 4, one side of the connecting plate 3 is fixedly connected with the bottom of the limiting cylinder 2 through a bolt part 12, and the other side of the connecting plate is bonded with the polytetrafluoroethylene coating 7. Generally, the side wall of the limiting cylinder extends outwards to form a mounting position, and the side wall of the limiting cylinder is fixedly connected with the connecting plate through a bolt piece. During earthquake, the connecting plate 3 is buffered through sliding friction between the polytetrafluoroethylene coating 7 and the lower sealing piece 4, deformation is natural, and shock insulation in the horizontal direction can be realized.
In addition, connecting holes 6 are reserved in the upper sealing piece 1 and the lower sealing piece 4, the connecting holes 6 are evenly and symmetrically distributed in the circumferential direction, the connecting holes 6 are mainly used for connecting external structures or equipment, and generally, detachable connection is achieved through parts such as bolts, and assembly is convenient.
In order to enhance the connection reliability of each part in an earthquake, the outer side wall of the limiting cylinder 2 is protruded with a limiting block 8, and the lower sealing part 4 is correspondingly provided with a first bayonet 9 for limiting the vertical movement of the limiting block 8. When the device is static, the limiting block 8 and the first bayonet 9 are in a separated state. When an earthquake occurs, under the conditions of horizontal vibration and vertical vibration, the limiting block 8 is intermittently contacted with the first bayonet 9 to limit the motion amplitude of the limiting cylinder 2, and the falling is not easy to occur.
Simultaneously, in order to restrict the deformation amplitude of thick rubber layer 51 under vertical vibrations, ensure that seal 1 connects stably, the edge of seal 1 is equipped with joint portion 10, and 2 tops of spacing section of thick bamboo are equipped with the second bayonet socket 11 that is used for restricting seal 1, and second bayonet socket 11 matches with joint portion 10 shape. Specifically, joint portion 10 is one-level stair structure, including being halfpace section 101 and the wall section 102 of right angle connection, the one end that the wall section 102 is kept away from the halfpace section 101 extends has interlock section 103, and interlock section 103 is parallel with the halfpace section 101, and interlock section 103 length is less than wall section 102. In the vertical direction, the length of the second bayonet 11 is smaller than the length of the ladder wall section 102. When the card member is at rest, the card member 10 and the second card opening 11 are separated from each other, as shown in fig. 4.
The working principle of the embodiment is as follows: when the shock insulation structure is used, the connecting hole 6 of the lower sealing piece 4 is connected with a base structure, and the connecting hole 6 of the upper sealing piece 1 is connected with the shock insulation structure to be isolated. When an earthquake occurs, relative displacement is generated on the part above the lower sealing piece 4 aiming at horizontal vibration, the connecting plate 3 is buffered through the sliding friction between the polytetrafluoroethylene coating 7 and the lower sealing piece 4, the deformation is natural, and the shock insulation in the horizontal direction can be realized.
For vertical vibration, the thick rubber layer 51 of the damping component 5 has smaller rigidity, so that main frequency can be avoided, energy can be reduced and energy can be transmitted upwards, meanwhile, the thick rubber layer 51 is restrained by the steel plate layer 52 and the limiting cylinder 2 to be in a three-dimensional stress state, and the stability of the thick rubber layer 51 and the vertical bearing capacity of the whole support are improved.
Through spacing 2 stopper 8 of a section of thick bamboo and 4 first bayonet socket 9 of lower seal, go up 1 joint portion 10 of seal and use with the cooperation of spacing 2 second bayonet sockets 11, bear the tensile force that makes progress that the earthquake produced for whole isolation bearing possess fine resistance to plucking performance, improvement support stability.
The embodiment can be matched with other shock insulation equipment for use, and can effectively protect the upper structure from being damaged in the earthquake.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims (10)

1. The utility model provides a three-dimensional isolation bearing with resistance to plucking performance which characterized in that: the device comprises an upper sealing part (1), a limiting cylinder (2), a connecting plate (3) and a lower sealing part (4) which are sequentially arranged from top to bottom, wherein the limiting cylinder (2) is of a hollow structure, and a damping component (5) is arranged in the limiting cylinder (2); the upper sealing part (1) is connected to the top surface of the shock absorption component (5), and the top surface, the peripheral side surfaces and the bottom surface of the shock absorption component (5) are respectively vulcanized with the upper sealing part (1), the peripheral inner wall of the limiting cylinder (2) and the connecting plate (3) into a whole; the lower sealing piece (4) is connected with the limiting cylinder (2) through a connecting plate (3); and connecting holes (6) are reserved in the upper sealing piece (1) and the lower sealing piece (4).
2. The three-dimensional seismic isolation bearing with the pulling resistance of claim 1, wherein: and a polytetrafluoroethylene coating (7) is coated between the connecting plate (3) and the lower sealing piece (4).
3. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 2, wherein: one side of the connecting plate (3) is fixedly connected with the bottom of the limiting cylinder (2) through a bolt piece (12), and the other side of the connecting plate is bonded with the polytetrafluoroethylene coating (7).
4. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 1 or 3, wherein: the damping component (5) comprises a plurality of thick rubber layers (51) and a plurality of steel plate layers (52), the thick rubber layers (51) and the steel plate layers (52) are arranged at intervals and are connected in a vulcanization mode, and the thick rubber layers (51) are arranged on two sides of each steel plate layer (52).
5. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 4, wherein: the inside of the limiting cylinder (2) is filled with the shock insulation assembly (5).
6. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 3, wherein: a limiting block (8) protrudes from the outer side wall of the limiting cylinder (2), and a first bayonet (9) used for limiting the limiting block (8) to vertically move is correspondingly arranged on the lower sealing piece (4); when the device is static, the limiting block (8) and the first bayonet (9) are in a separated state.
7. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 3 or 6, wherein: the edge of the upper sealing piece (1) is provided with a clamping part (10), the top of the limiting cylinder (2) is provided with a second bayonet (11) used for limiting the upper sealing piece (1), and the second bayonet (11) is matched with the clamping part (10) in shape; when the clamping device is static, the clamping part (10) and the second bayonet (11) are in a separated state.
8. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 7, wherein: the clamping portion (10) is of a stepped structure and comprises a step section (101) and a step wall section (102), wherein an engagement section (103) extends from one end, far away from the step section (101), of the step wall section (102), the engagement section (103) is parallel to the step section (101), and the length of the engagement section (103) is smaller than that of the step wall section (102);
in the vertical direction, the length of the second bayonet (11) is smaller than the length of the ladder wall section (102).
9. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 7, wherein: the upper sealing piece (1), the limiting cylinder (2) and the lower sealing piece (4) are integrally cylindrical.
10. The three-dimensional seismic isolation bearing with the pulling-resistant performance according to claim 9, wherein: the connecting holes (6) are uniformly and symmetrically distributed around the circumferential direction.
CN202011304646.0A 2020-11-19 2020-11-19 Three-dimensional shock insulation support with resistance to plucking performance Pending CN112431317A (en)

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CN202011304646.0A CN112431317A (en) 2020-11-19 2020-11-19 Three-dimensional shock insulation support with resistance to plucking performance

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Application Number Priority Date Filing Date Title
CN202011304646.0A CN112431317A (en) 2020-11-19 2020-11-19 Three-dimensional shock insulation support with resistance to plucking performance

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CN112431317A true CN112431317A (en) 2021-03-02

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001241503A (en) * 2000-02-29 2001-09-07 Tokai Rubber Ind Ltd Sliding rubber brace
CN102286917A (en) * 2010-11-11 2011-12-21 东南大学 Multifunctional isolation bridge bearing
CN202390755U (en) * 2011-11-15 2012-08-22 东南大学 Conversion device for multifunctional quake-absorbing and isolating support
CN204266392U (en) * 2014-10-29 2015-04-15 陕西永安减震科技有限公司 Resistance to plucking elastic sliding bearing
CN204825626U (en) * 2015-07-30 2015-12-02 广州大学 Novel corner shock insulation rubber support by a wide margin
CN205314138U (en) * 2015-10-14 2016-06-15 西安达盛隔震技术有限公司 Three -dimensional isolation bearing of resistance to plucking type
CN206599849U (en) * 2017-03-27 2017-10-31 河海大学 A kind of three-dimensional tension rubber earthquake isolation support
CN208236064U (en) * 2018-05-22 2018-12-14 吴国庆 Three-dimensional shock isolation support
CN109235687A (en) * 2018-10-22 2019-01-18 北京工业大学 Resistance to plucking three-dimensional compounded shock isolating pedestal
CN210421438U (en) * 2019-06-11 2020-04-28 北京交通大学 Three-dimensional vibration isolation support of antidumping

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001241503A (en) * 2000-02-29 2001-09-07 Tokai Rubber Ind Ltd Sliding rubber brace
CN102286917A (en) * 2010-11-11 2011-12-21 东南大学 Multifunctional isolation bridge bearing
CN202390755U (en) * 2011-11-15 2012-08-22 东南大学 Conversion device for multifunctional quake-absorbing and isolating support
CN204266392U (en) * 2014-10-29 2015-04-15 陕西永安减震科技有限公司 Resistance to plucking elastic sliding bearing
CN204825626U (en) * 2015-07-30 2015-12-02 广州大学 Novel corner shock insulation rubber support by a wide margin
CN205314138U (en) * 2015-10-14 2016-06-15 西安达盛隔震技术有限公司 Three -dimensional isolation bearing of resistance to plucking type
CN206599849U (en) * 2017-03-27 2017-10-31 河海大学 A kind of three-dimensional tension rubber earthquake isolation support
CN208236064U (en) * 2018-05-22 2018-12-14 吴国庆 Three-dimensional shock isolation support
CN109235687A (en) * 2018-10-22 2019-01-18 北京工业大学 Resistance to plucking three-dimensional compounded shock isolating pedestal
CN210421438U (en) * 2019-06-11 2020-04-28 北京交通大学 Three-dimensional vibration isolation support of antidumping

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