CN118030772A - Three-dimensional shock-absorbing and isolating support for pillar type electrical equipment - Google Patents

Three-dimensional shock-absorbing and isolating support for pillar type electrical equipment Download PDF

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Publication number
CN118030772A
CN118030772A CN202410058184.0A CN202410058184A CN118030772A CN 118030772 A CN118030772 A CN 118030772A CN 202410058184 A CN202410058184 A CN 202410058184A CN 118030772 A CN118030772 A CN 118030772A
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CN
China
Prior art keywords
connecting plate
vibration reduction
vertical vibration
laminated rubber
reduction structure
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Pending
Application number
CN202410058184.0A
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Chinese (zh)
Inventor
陈寅
张凯
姜文
严勇
翟伟
刘炎
杜荣武
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Hubei Electric Power Planning Design And Research Institute Co ltd
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Hubei Electric Power Planning Design And Research Institute Co ltd
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Application filed by Hubei Electric Power Planning Design And Research Institute Co ltd filed Critical Hubei Electric Power Planning Design And Research Institute Co ltd
Priority to CN202410058184.0A priority Critical patent/CN118030772A/en
Publication of CN118030772A publication Critical patent/CN118030772A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F16F15/085Use of both rubber and metal springs
    • 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
    • F16MFRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02Heads
    • F16M11/04Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The invention discloses a three-dimensional vibration reduction and isolation support for a pillar type electrical device, which comprises a laminated rubber vibration isolation structure, a vertical vibration reduction structure, a limiting structure and a connecting device, wherein the vertical vibration reduction structure is positioned on the laminated rubber vibration isolation structure; the shock absorbing and isolating support is positioned between the support column type electrical equipment and the reinforced concrete foundation or the steel support; according to the invention, the natural vibration period of the vibration isolation structure is prolonged through the combined action of the laminated rubber structure and the vertical vibration reduction structure, so that the energy transferred to the upper electric equipment is dissipated, and the vibration reduction and isolation function of the vibration reduction and isolation support is realized.

Description

Three-dimensional shock-absorbing and isolating support for pillar type electrical equipment
Technical Field
The invention belongs to the technical field of vibration control of electrical equipment, and particularly relates to a three-dimensional shock-absorbing and isolating support suitable for a strut type electrical equipment in a high seismic intensity area.
Background
The support structure is made of porcelain materials with good insulating properties, but the porcelain materials belong to brittle materials, the safe energy storage space is small, and under the action of an earthquake, the high gravity center characteristic of the support type electric equipment leads the root stress of the support to exceed the destruction stress, so that the support cracks and the equipment overturns.
Earthquake is a lot of earthquakes in China, and is one of important loads in the design of power systems. To avoid such accidents, structural designers often increase the safety of the equipment by increasing the cross-sectional dimensions of the struts, which in turn results in a dramatic increase in the cost of the structure. Therefore, it is desirable to design a seismic isolation apparatus suitable for electrical equipment such as pillars, to dissipate seismic energy transferred to the superstructure, to reduce the response of the superstructure in the seismic, and to reduce the maximum stress of the pillars, while achieving both economy and safety of the electrical equipment.
Disclosure of Invention
The invention aims to provide a three-dimensional shock-absorbing and isolating support which is suitable for post-like electrical equipment in a high earthquake intensity area, so that the response of the upper structure of the shock-absorbing and isolating support in an earthquake is reduced, and the risk of overturning the post-like electrical equipment on the upper part of the shock-absorbing and isolating support is further reduced.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
The three-dimensional shock-absorbing and isolating support for the pillar type electrical equipment comprises a laminated rubber shock-isolating structure, wherein a vertical vibration-absorbing structure is arranged on the laminated rubber shock-isolating structure, a semi-closed limiting structure covers the periphery of the vertical vibration-absorbing structure, the side surface of the vertical vibration-absorbing structure extends out of a notch of the side surface of the semi-closed limiting structure, the bottom surface of the limiting structure is arranged on the upper surface of the laminated rubber shock-isolating structure, a connecting device is vertically arranged, and the top end of the connecting device is arranged on the top surface of the limiting structure; the bottom end of the connecting device sequentially passes through the top surface of the limiting structure and the vertical vibration reduction structure until reaching the laminated rubber vibration isolation structure; the connecting device is connected with the limiting structure, the vertical vibration reduction structure and the laminated rubber vibration isolation structure, a plurality of elastic elements are arranged on the inner side of the vertical vibration reduction structure, and the upper part of the vertical vibration reduction structure can move up and down along the connecting device in the limiting structure; the pillar type electrical equipment is arranged on the top surface of the shock absorption and insulation support, and the bottom end of the shock absorption and insulation support is connected with a reinforced concrete foundation or a steel support.
Further, the laminated rubber structure comprises a support lower connecting plate, the laminated rubber structure lower connecting plate is positioned in the middle of the upper surface of the support lower connecting plate, the area of the laminated rubber structure lower connecting plate is smaller than that of the support lower connecting plate, a plurality of first bolt holes are formed in the part, uncovered by the laminated rubber structure lower connecting plate, of the support lower connecting plate, and the plurality of first bolt holes are formed in the support lower connecting plate at intervals along the circumferential direction; the laminated rubber is positioned on the upper surface of the lower connecting plate of the laminated rubber structure, the upper connecting plate of the laminated rubber structure is positioned on the upper surface of the laminated rubber, and a plurality of second bolt holes are formed in the upper connecting plate of the laminated rubber structure; the vertical vibration reduction structure is placed on the connecting plate on the laminated rubber structure.
Further, the vertical vibration reduction structure comprises a lower connecting plate of the vertical vibration reduction structure, and an upper connecting plate of the vertical vibration reduction structure is positioned above the lower connecting plate of the vertical vibration reduction structure; a plurality of dowel bars are arranged between the lower connecting plate of the vertical vibration reduction structure and the upper connecting plate of the vertical vibration reduction structure, and each dowel bar comprises an upper dowel bar and a lower dowel bar; the upper end of the upper force transmission connecting rod is hinged with an upper connecting plate of the vertical vibration reduction structure, and the lower end of the upper force transmission connecting rod is hinged with the upper end of the lower force transmission connecting rod; the lower end of the lower force transmission connecting rod is hinged with a lower connecting plate of the vertical vibration reduction structure; the lower force transmission connecting rod and the upper force transmission connecting rod form a certain angle, and the angle is between 45 degrees and 135 degrees.
Further, every two dowel bars in the dowel bars are oppositely arranged, an elastic element is connected between every two dowel bars which are oppositely arranged, the elastic element is a high-performance spring, the two high-performance springs are mutually perpendicular in space, and one high-performance spring is positioned above the other high-performance spring; the middle part of each dowel bar is a hinge shaft; the lower end of the upper force transmission connecting rod and the upper end of the lower force transmission connecting rod penetrate through a hinge shaft, so that the hinged connection of the lower end of the upper force transmission connecting rod and the hinge shaft and the hinged connection of the upper end of the lower force transmission connecting rod and the hinge shaft are realized; one end of the high-performance spring is sleeved at the middle part of one hinge shaft, and the other end of the high-performance spring is sleeved at the middle part of the other opposite hinge shaft; the two hinge shafts which are oppositely arranged are located at the same height, and the height of one hinge shaft is higher than that of the other hinge shaft in the two adjacent hinge shafts.
Further, a plurality of third bolt holes are uniformly arranged on the lower connecting plate of the vertical vibration reduction structure at intervals; the vertical vibration reduction structure upper connecting plate is provided with a plurality of through holes at equal intervals, the number of the third bolt holes is equal to that of the through holes, and each third bolt hole corresponds to the position of one through hole; one or more fourth bolt holes are formed in the middle of the upper connecting plate of the vertical vibration reduction structure, and a plurality of through holes encircle the periphery of the fourth bolt holes; each third bolt hole or via corresponds to one second bolt hole.
Further, the limiting structure comprises a limiting shell and a limiting gasket positioned on the top surface of the limiting shell; the limiting shell is a semi-closed columnar body, the top surface of the columnar body is an opening, the limiting gasket is positioned in the middle of the top surface of the columnar body, the area of the limiting gasket is smaller than that of the top surface of the columnar body, and the limiting gasket is arranged at the upper end of the connecting metal rod; the bottom surface of the columnar body is an opening; the diameter of the opening at the bottom of the limiting structure is larger than the diameter of the lower connecting plate of the vertical vibration reduction structure and larger than the diameter of the upper connecting plate of the vertical vibration reduction structure, the limiting structure is arranged on the periphery of the vertical vibration reduction structure, the limiting structure covers the vertical vibration reduction structure, the bottom of the limiting structure is arranged on the upper connecting plate of the laminated rubber structure, and the bottom of the limiting structure is arranged on the periphery of the lower connecting plate of the vertical vibration reduction structure.
Further, a plurality of strip-shaped notches are arranged on the side face of the columnar body at intervals, the number of the strip-shaped notches is equal to that of the upper force transmission connecting rods or the lower force transmission connecting rods, and each upper force transmission connecting rod and the lower force transmission connecting rod connected with the upper force transmission connecting rod extend out of one strip-shaped notch.
Further, a plurality of fifth bolt holes are uniformly arranged on the limiting gasket at intervals, and each fifth bolt hole corresponds to one through hole on the upper connecting plate of the vertical vibration reduction structure; one or more through holes are formed in the middle of the limiting gasket, and a plurality of fifth bolt holes encircle the periphery of the through holes; the position of the through hole corresponds to the position of a fourth bolt hole on the connecting plate on the vertical vibration reduction structure.
Further, the connecting device comprises a plurality of connecting metal rods and nuts, and is used for connecting the laminated rubber vibration isolation structure, the spring vertical vibration reduction structure and the limiting structure; the bottom end of each connecting metal rod sequentially passes through a fifth bolt hole, a through hole corresponding to the fifth bolt hole and a third bolt hole corresponding to the fifth bolt hole, the bottom end of each connecting metal rod stretches into one second bolt hole, a nut is arranged at the top end of each connecting metal rod, the bottom surface of the nut is tightly attached to the upper surface of the limiting gasket, and each connecting metal rod is rotated to firmly fix the lower connecting plate of the vertical vibration reduction structure and the upper connecting plate of the laminated rubber structure, and meanwhile, the limiting gasket is firmly fixed with the connecting metal rods; the via hole is movably connected with the connecting metal rod, and the upper connecting plate of the vertical vibration reduction structure can move up and down along the connecting metal rod.
Further, the top end of the shock-absorbing and isolating support is connected with the pillar type electric equipment through bolts, and the bottom end of the shock-absorbing and isolating support is fixed on a reinforced concrete foundation or a steel support through bolts and first bolt holes.
The beneficial effects of the invention are as follows:
1. When an earthquake occurs, the laminated rubber deformation dissipates horizontal earthquake energy, the horizontal direction including X-direction and Y-direction earthquake energy dissipation is realized through the laminated rubber structure, and meanwhile, the laminated rubber structure deformation can dissipate vertical direction, namely Z-direction earthquake energy; the vertical vibration reduction structure dissipates earthquake energy in the vertical direction, namely the Z direction through deformation energy consumption; the natural vibration period of the vibration isolation structure is prolonged through the combined action of the laminated rubber structure and the vertical vibration reduction structure, so that energy transmitted to the upper electric equipment is dissipated, and the three-dimensional vibration reduction and isolation functions of X, Y, Z of the vibration reduction and isolation support in three directions are realized.
2. In the invention, the semi-closed limiting structure is covered on the periphery of the vertical vibration reduction structure, and the limiting structure can limit the displacement of the vertical vibration reduction structure in the horizontal direction and the vertical direction so as to avoid the overturning of an upper structure, namely electric equipment, caused by the large-amplitude movement of the vibration reduction and insulation support, and simultaneously avoid the pulling-out of the vibration reduction and insulation support caused by the large-amplitude movement of the vibration reduction and insulation support.
3. In the invention, a high-performance spring is arranged between every two oppositely arranged dowel bars, a plurality of high-performance springs are mutually vertical in space, and the high-performance springs only deform when the basic intensity value of an earthquake exceeds a preset value; when no earthquake exists or the basic intensity value of the earthquake does not exceed a preset value, the high-performance spring state is kept unchanged, and the earthquake reduction and isolation support can be kept in a stable state; when an earthquake occurs and the basic intensity value of the earthquake exceeds a preset value, the high-performance spring deforms, the self-vibration period of the structure is prolonged through the deformation energy consumption of the high-performance spring, and the energy transferred to the upper structure, namely the pillar type electrical equipment by the earthquake is reduced, so that the equipment is prevented from overturning.
Drawings
FIG. 1 is a schematic diagram of the present invention.
FIG. 2 is a schematic view of a laminated rubber shock insulation structure according to the present invention.
Fig. 3 is a schematic view of the vertical vibration damping structure of the present invention.
Fig. 4 is a schematic diagram of a limiting structure of the present invention.
FIG. 5 is a schematic view of the connection of the vertical vibration isolation structure of the present invention to the laminated rubber vibration isolation structure and the connection means.
Fig. 6 is a schematic diagram of the connection between the limiting structure and the connecting device.
Fig. 7 is a view showing a state in which the seismic isolation bearing of the present invention is mounted on a foundation.
Fig. 8 is a view showing a state in which the seismic isolation bearing of the present invention is mounted on a steel bracket.
Fig. 9 is a view showing a state in which the seismic isolation bearing of the present invention is mounted on a steel bracket.
In the figure: a laminated rubber shock insulation structure 1; the lower connecting plate of the support is 1.1; a first bolt hole 1.11; a lower connecting plate 1.2 of a laminated rubber structure; laminated rubber 1.3; 1.4 parts of upper connecting plates of laminated rubber structures; a second bolt hole 1.41; a vertical vibration damping structure 2; the lower connecting plate of the vertical vibration reduction structure is 2.1; a lower force transmission connecting rod 2.2; high performance springs 2.3; 2.4, connecting plates on the vertical vibration reduction structure; a third bolt hole 2.5; 2.6 of a via hole; a fourth bolt hole 2.7; an upper force transmission connecting rod 2.8; a hinge shaft 2.9; a limit structure 3; a limit housing 3.1; spacing gasket 3.2; a fifth bolt hole 3.21; a through hole 3.22; a connecting device 4; connecting a metal rod 4.1; a nut 4.2; a foundation 5; foundation bolts 5.1; an electrical device 6; support legs 6.1; a bolt 7; a steel bracket 8; ground a.
Detailed Description
The present invention will be further described with reference to the accompanying drawings for the purpose of making the objects, technical solutions and advantages of the present invention more apparent.
As shown in fig. 1, a three-dimensional vibration reduction and insulation support for a post-type electrical device comprises a laminated rubber structure 1, a vertical vibration reduction structure 2, a limiting structure 3 and a connecting device 4.
As shown in fig. 2, the laminated rubber structure 1 comprises a support lower connecting plate 1.1, a laminated rubber structure lower connecting plate 1.2, laminated rubber 1.3 and a laminated rubber structure upper connecting plate 1.4; the lower connecting plate 1.1 of the support can be square or round steel plates, and the lower connecting plate 1.2 of the laminated rubber structure and the lower connecting plate 1.1 of the support can be connected through bolts; the upper connecting plate 1.4 of the laminated rubber structure and the laminated rubber 1.3, and the lower connecting plate 1.2 of the laminated rubber structure and the laminated rubber 1.3 can be integrally formed through vulcanization. The laminated rubber structure lower connecting plate 1.2 is positioned on the upper surface of the support lower connecting plate 1.1, the laminated rubber structure lower connecting plate 1.2 is positioned in the middle of the support lower connecting plate 1.1, the area of the laminated rubber structure lower connecting plate 1.2 is smaller than that of the support lower connecting plate 1.1, a plurality of first bolt holes 1.11 are formed in the part, uncovered by the laminated rubber structure lower connecting plate 1.2, of the support lower connecting plate 1.1, and the plurality of first bolt holes 1.11 are formed in the support lower connecting plate 1.1 at intervals along the circumferential direction; the laminated rubber 1.3 is positioned on the upper surface of the laminated rubber structure lower connecting plate 1.2, the laminated rubber structure upper connecting plate 1.4 is positioned on the upper surface of the laminated rubber 1.3, and a plurality of second bolt holes 1.41 are formed in the laminated rubber structure upper connecting plate 1.4; the areas of the lower connecting plate 1.2, the laminated rubber 1.3 and the upper connecting plate 1.4 are equal.
As shown in fig. 3, the vertical vibration reduction structure 2 comprises an upper connecting plate, a lower connecting plate and two groups of spring rod members which are vertical in space, wherein the upper connecting plate is fixedly connected with upper electric equipment, vertical vibration isolation is performed through the vertical vibration reduction structure 2, the spring rod members are high-performance springs 2.3, the high-performance springs 2.3 are 65S 2 Mn high-quality spring steel, the rigidity of the high-performance springs 2.3 can be designed according to the gravity of the pillar electric equipment supported by the vibration reduction and insulation support and the past basic earthquake intensity value of the vibration reduction and insulation support using area, and the high-performance springs 2.3 can deform only when the basic earthquake intensity value exceeds a preset value; and the deformation energy consumption of the high-performance spring 2.3 can be used for prolonging the self-vibration period of the structure and reducing the energy transferred to the upper structure, namely the pillar type electrical equipment, by the earthquake.
The vertical vibration reduction structure 2 comprises a lower connecting plate 2.1 of the vertical vibration reduction structure and an upper connecting plate 2.4 of the vertical vibration reduction structure; the upper connecting plate 2.4 of the vertical vibration reduction structure is positioned right above the lower connecting plate 2.1 of the vertical vibration reduction structure; a plurality of dowel bars are arranged between the lower connecting plate 2.1 of the vertical vibration reduction structure and the upper connecting plate 2.4 of the vertical vibration reduction structure, and each dowel bar comprises an upper dowel bar 2.8 and a lower dowel bar 2.2.
The lower connecting plate 2.1 of the vertical vibration reduction structure and the upper connecting plate 2.4 of the vertical vibration reduction structure can be circular plates or square plates, and in the specific embodiment of the invention, the circular plates are adopted. The upper connecting plate 2.4 of the vertical vibration reduction structure is hinged with a plurality of upper force transmission connecting rods 2.8; a plurality of notches are uniformly arranged on the upper connecting plate 2.4 of the vertical vibration reduction structure at intervals along the circumferential direction, a horizontal hinging rod is arranged at each notch, the upper end of the upper force transmission connecting rod 2.8 is sleeved on the hinging rod, the upper end of the upper force transmission connecting rod 2.8 is hinged with the hinging rod, the lower end of the upper force transmission connecting rod 2.8 is hinged with the upper end of the lower force transmission connecting rod 2.2, and the lower end of the lower force transmission connecting rod 2.2 is hinged with the lower connecting plate 2.1 of the vertical vibration reduction structure; in the specific embodiment of the invention, four gaps are uniformly arranged on the upper connecting plate 2.4 of the vertical vibration reduction structure at intervals along the circumferential direction, and the upper connecting plate 2.4 of the vertical vibration reduction structure is connected with the four upper force transmission connecting rods 2.8 in a hinged manner.
The number of the lower force transmission connecting rods 2.2 is equal to that of the upper force transmission connecting rods 2.8; in the specific embodiment of the invention, the number of the lower force transmission connecting rods 2.2 and the number of the upper force transmission connecting rods 2.8 are four, and a certain angle is formed between the lower force transmission connecting rods 2.2 and the upper force transmission connecting rods 2.8, and the angle is between 45 degrees and 135 degrees.
The upper end of each lower force transmission connecting rod 2.2 is provided with a hinge shaft 2.9; the lower end of the upper force transmission connecting rod 2.8 and the upper end of the lower force transmission connecting rod 2.2 penetrate through a hinge shaft 2.9 to realize the hinged connection of the lower end of the upper force transmission connecting rod 2.8 and the hinge shaft 2.9, and simultaneously realize the hinged connection of the upper end of the lower force transmission connecting rod 2.2 and the hinge shaft 2.9. The lower end of each lower force transmission connecting rod 2.2 is hinged with the lower connecting plate 2.1 of the vertical vibration reduction structure, a plurality of gaps are uniformly arranged on the lower connecting plate 2.1 of the vertical vibration reduction structure at intervals along the circumferential direction, a horizontal hinging rod is arranged at each gap, the lower end of each lower force transmission connecting rod 2.2 is sleeved on the hinging rod, and the lower end of each lower force transmission connecting rod 2.2 is hinged with the hinging rod.
A high-performance spring 2.3 is connected between every two oppositely arranged dowel bars, the middle part of each dowel bar is provided with a hinge shaft 2.9, one end of the high-performance spring 2.3 is sleeved on one hinge shaft 2.9, and the other end of the high-performance spring 2.3 is sleeved on the other oppositely arranged hinge shaft 2.9; the lower end of the upper force transmission connecting rod 2.8 and the upper end of the lower force transmission connecting rod 2.2 are both arranged in a U shape, so that when the end part of the high-performance spring 2.3 is sleeved on the hinge shaft 2.9, the end part of the high-performance spring 2.3 is positioned in the middle of the U-shaped opening.
In the embodiment of the invention, four dowel bars and four hinge shafts 2.9 are arranged, one high-performance spring 2.3 is arranged between every two dowel bars which are oppositely arranged, and in the embodiment of the invention, two high-performance springs 2.3 are arranged together, wherein the two high-performance springs 2.3 are mutually vertical in space, and one high-performance spring 2.3 is positioned above the other high-performance spring. Because each high-performance spring 2.3 is arranged between the two opposite hinge shafts 2.9, in order to ensure that one high-performance spring 2.3 is positioned above the other high-performance spring, the two opposite hinge shafts 2.9 are positioned at the same height, and the heights of the two adjacent hinge shafts 2.9 are higher than the height of the other hinge shaft 2.9, the length of an upper force transmission connecting rod 2.8 connected with one hinge shaft 2.9 positioned at a higher position is smaller than the length of an upper force transmission connecting rod 2.8 connected with one hinge shaft 2.9 positioned at a lower position; the length of the lower force transmission link 2.2 to which one hinge shaft 2.9 is connected in the upper position is greater than the length of the lower force transmission link 2.2 to which one hinge shaft 2.9 is connected in the lower position. The lengths of the two upper force transmission connecting rods 2.8 which are oppositely arranged are the same, and the lengths of the two lower force transmission connecting rods 2.2 which are oppositely arranged are the same; of the two adjacent upper force transmission connecting rods 2.8, one upper force transmission connecting rod 2.8 has a length smaller than that of the other upper force transmission connecting rod 2.8; in two adjacent lower dowel bars 2.2, the length of one lower dowel bar 2.2 is longer than that of the other lower dowel bar 2.2; the longer upper force transfer link 2.8 is connected to the shorter lower force transfer link 2.2, while the shorter upper force transfer link 2.8 is connected to the longer lower force transfer link 2.2.
A plurality of third bolt holes 2.5 are uniformly arranged on the lower connecting plate 2.1 of the vertical vibration reduction structure at intervals; a plurality of through holes 2.6 are uniformly arranged on the upper connecting plate 2.4 of the vertical vibration reduction structure at intervals, the number of the third bolt holes 2.5 is equal to that of the through holes 2.6, and each third bolt hole 2.5 corresponds to the position of one through hole 2.6; one or more fourth bolt holes 2.7 are formed in the middle of the upper connecting plate 2.4 of the vertical vibration reduction structure, and a plurality of through holes 2.6 encircle the periphery of the fourth bolt holes 2.7; each third bolt hole 2.5 or via 2.6 corresponds to one second bolt hole 1.41.
As shown in fig. 4, the limiting structure 3 includes a limiting housing 3.1 and a limiting gasket 3.2 located on the top surface of the limiting housing 3.1, where the limiting gasket 3.2 may be a circular or square horizontal plate.
The limiting shell 3.1 is a semi-closed cylindrical body, the cylindrical body can be a square body or a cylinder, in the specific embodiment of the invention, the limiting shell 3.1 is positioned on the top surface of the cylinder, the top surface of the cylinder is an opening, the limiting gasket 3.2 is positioned in the middle of the top surface of the cylinder, and the area of the limiting gasket 3.2 is smaller than the area of the top surface of the cylinder; the limiting gasket 3.2 is arranged at the upper end of the connecting metal rod 4.1 in a threaded connection mode; the bottom surface of the cylinder is an opening; the side of the cylinder is provided with a plurality of strip-shaped notches at intervals, the number of the strip-shaped notches is equal to that of the upper force transmission connecting rods 2.8 or the lower force transmission connecting rods 2.2, the strip-shaped notches extend from the upper end of the side of the cylinder to the lower end of the side of the cylinder, each upper force transmission connecting rod 2.8 and the lower force transmission connecting rod 2.2 connected with the upper force transmission connecting rod 2.8 extend out of one strip-shaped notch, and each upper force transmission connecting rod 2.8 and the connecting part of the lower force transmission connecting rod 2.2 connected with the upper force transmission connecting rod 2.8 extend out of the strip-shaped notch and protrude out of the surface of the side of the limiting shell 3.1.
A plurality of fifth bolt holes 3.21 are uniformly arranged on the limiting gasket 3.2 at intervals, and each fifth bolt hole 3.21 corresponds to one through hole 2.6 on the connecting plate 2.4 on the vertical vibration reduction structure; one or more through holes 3.22 are formed in the middle of the limiting gasket 3.2, and a plurality of fifth bolt holes 3.21 encircle the periphery of the through holes 3.22; the position of the through hole 3.22 corresponds to the position of the fourth bolt hole 2.7 on the connecting plate 2.4 on the vertical vibration reduction structure.
The vertical vibration reduction structure 2 comprises the vertical vibration reduction structure upper connecting plate 2.4 which can vertically move in the limiting shell 3.1, meanwhile, the limiting gasket 3.2 which is arranged in the limiting structure 3 can prevent the vertical vibration reduction structure 2 from excessively large vertical displacement, so that the phenomenon that the upper structure, namely electric equipment, is overturned due to the large-amplitude movement of the vibration reduction and insulation support is avoided, and the limiting structure 3 is matched with the connecting metal rod 4.1 to prevent the large-amplitude movement of the vibration reduction and insulation support, so that the vibration reduction and insulation support is prevented from being pulled out due to the large-amplitude movement of the vibration reduction and insulation support.
As shown in fig. 1, 5 and 6, the connecting device 4 comprises a plurality of connecting metal rods 4.1 and nuts 4.2, the vertical vibration reduction structure 2 is placed on the upper connecting plate 1.4 of the laminated rubber structure, and the area of the lower connecting plate 2.1 of the vertical vibration reduction structure is smaller than that of the upper connecting plate 1.4 of the laminated rubber structure; each third bolt hole 2.5 corresponds to one second bolt hole 1.41, the diameter of the opening at the bottom of the limiting structure 3 is larger than the diameter of the lower connecting plate 2.1 of the vertical vibration reduction structure and larger than the diameter of the upper connecting plate 2.4 of the vertical vibration reduction structure, the limiting structure 3 is positioned on the periphery of the vertical vibration reduction structure 2, the limiting structure 3 covers the vertical vibration reduction structure 2, the bottom of the limiting structure 3 is placed on the upper connecting plate 1.4 of the laminated rubber structure, and the area of the bottom of the limiting structure 3 is smaller than that of the upper connecting plate 1.4 of the laminated rubber structure.
The connecting device 4 is used for connecting the laminated rubber vibration isolation structure 1, the spring vertical vibration reduction structure 2 and the limiting structure 3; threads can be arranged on the upper part and the lower part of each connecting metal rod 4.1, and threads are not arranged on the middle part; after each connecting metal rod 4.1 sequentially passes through a fifth bolt hole 3.21, a through hole 2.6 corresponding to the fifth bolt hole and a third bolt hole 2.5 corresponding to the fifth bolt hole, the bottom end of each connecting metal rod 4.1 stretches into one second bolt hole 1.41, the top end of each connecting metal rod 4.1 is provided with a nut 4.2, the bottom surface of the nut 4.2 is tightly attached to the upper surface of the limiting gasket 3.2, each connecting metal rod 4.1 is rotated to firmly fix the lower connecting plate 2.1 of the vertical vibration reduction structure and the upper connecting plate 1.4 of the laminated rubber structure, and meanwhile, the fifth bolt hole 3.21 included in the limiting shell 3.1 is in threaded connection and fixed with the upper end of the connecting metal rod 4.1; the through holes 2.6 are movably connected with the connecting metal rods 4.1, and when an earthquake occurs, the connecting plates 2.4 on the vertical vibration reduction structure can move up and down along the connecting metal rods 4.1.
The positions of the fifth bolt hole 3.21, the via hole 2.6, the third bolt hole 2.5 and the second bolt hole 1.41 on the shock absorbing and isolating support should be designed according to the size of the shock absorbing and isolating support so that the connecting metal rod 4.1 can avoid the high-performance spring 2.3.
In a specific application, as shown in fig. 7, the seismic isolation bearing of the invention is installed between a reinforced concrete foundation 5 and a post-like electrical device 6; or as shown in fig. 8 and 9, the shock absorbing and insulating support of the present invention is installed between the steel bracket 8 and the pillar-like electrical device 6, and in fig. 8, the foundation is partially located under the ground a, partially located on the ground a, and the steel bracket 8 is built on the foundation.
Regarding the connection between the seismic isolation bearing and the foundation 5, when the foundation 5 is constructed, a plurality of foundation bolts 5.1 can be pre-buried at the upper end of the foundation 5, each first bolt hole 1.11 is sleeved on one foundation bolt 5.1, and then the seismic isolation bearing is fixedly arranged on the foundation 5 by using nuts and tightening the nuts.
Regarding the connection between the seismic isolation bearing and the steel bracket 8, a plurality of bolts can be arranged at the upper end of the steel bracket 8, each first bolt hole 1.11 is sleeved on one bolt, and then nuts are used and screwed down, so that the seismic isolation bearing is fixedly arranged on the steel bracket 8.
Two connection modes are provided for the connection of the support type electric equipment 6 and the shock absorbing and isolating support of the invention:
The first connection mode is as follows: the bottom of the pillar type electric equipment 6 is provided with a mounting base, bolts can be arranged at the bottom of the mounting base, the bolts at the bottom of the mounting base sequentially extend into the through holes 3.22 and the fourth bolt holes 2.7 and are screwed down, so that the fixed connection of the pillar type electric equipment 6 and the shock absorbing and insulating support is realized, the diameter of the through holes 3.22 is slightly larger than that of the bolts at the bottom of the mounting base, and when the upper connecting plate 2.4 of the vertical shock absorbing structure moves up and down, the pillar type electric equipment 6 can move up and down along the through holes 3.22.
The second connection mode is as follows: in order to ensure the stability of the electrical equipment in an earthquake, as shown in fig. 7, 8 and 9, a plurality of bolts 7 are adopted to connect the pillar type electrical equipment 6 with the shock absorbing and insulating support, specifically, the mounting base of the pillar type electrical equipment 6 comprises a plurality of supporting legs 6.1, the supporting legs 6.1 are umbrella-shaped, the bottom of each supporting leg 6.1 is horizontal, the bottom of each supporting leg is provided with a bolt hole, the top surface of a limit shell 3.1 of a pillar body is provided with an opening, a limit gasket 3.2 is positioned in the middle of the top surface of the pillar body, the area of the limit gasket 3.2 is smaller than the area of the top surface of the pillar body, therefore, the horizontal bottom of each supporting leg can be directly placed at the edge part of the surface of a connecting plate 2.4 on a vertical vibration damping structure, the edge part of the surface of the connecting plate 2.4 on the vertical vibration damping structure is provided with a bolt hole, and the bolt hole at the edge part of the surface of the connecting plate 2.4 on the vertical vibration damping structure corresponds to the bolt hole at the bottom of the horizontal bottom of the supporting leg 6.1; bolts 7 sequentially pass through the bolt holes at the horizontal bottom of the supporting legs 6.1 and the bolt holes at the surface edges of the connecting plates 2.4 on the vertical vibration reduction structure, so that the pillar type electrical equipment is fixed on the vibration reduction and isolation support.
In the invention, the laminated rubber structure 1 is fixedly connected with the vertical shock absorption structure 2 through threads, the third bolt hole 2.5 included in the vertical shock absorption structure 2 is fixedly connected with the lower end of the connecting metal rod 4.1 through threads, and the upper end of the connecting metal rod 4.1 is slidably connected with the through hole 2.6 included in the vertical shock absorption structure 2, so that the upper connecting plate 2.4 of the vertical shock absorption structure can slide up and down along the connecting metal rod 4.1.
The limit gasket 3.2 that limit structure 3 included passes through the thread tightening with connecting metal rod 4.1, limit structure 3 lower part and connecting plate 2.1 laminating under the vertical damping structure, can be with limit housing 3.1 lower part inboard with the outside welding of connecting plate 2.1 under the vertical damping structure, perhaps will with limit housing 3.1's bottom welding on layer rubber structure upper junction plate 1.4. The limiting structure 3 and the connecting metal rod 4.1 jointly restrict the horizontal movement and the vertical movement of the upper connecting plate and the lower connecting plate of the vertical vibration reduction structure 2. The upper part of the limiting structure 3 is provided with holes so that the upper electric equipment supporting structure is connected with the upper connecting plate 2.4 of the vertical vibration reduction structure 2.
When the seismic isolation bearing is in a use state, the post type electrical equipment is arranged on the seismic isolation bearing, and the high-performance spring 2.3 only deforms when the basic intensity value of an earthquake exceeds a preset value; when no earthquake exists or the basic intensity value of the earthquake does not exceed the preset value, the state of the high-performance spring 2.3 is kept unchanged, and the earthquake-reduction and isolation support can be kept in a stable state due to the support of the high-performance spring 2.3. When an earthquake occurs and the basic intensity value of the earthquake exceeds a preset value, the high-performance spring 2.3 deforms, the upper dowel bar 2.8 and the lower dowel bar 2.2 rotate, the angle between the upper dowel bar 2.8 and the lower dowel bar 2.2 becomes larger or smaller, and the upper connecting plate 2.4 of the vertical vibration reduction structure moves upwards or downwards along the connecting metal rod 4.1; when the vibration reduction and isolation support is in a stable state, the upper surface of the upper connecting plate 2.4 of the vertical vibration reduction structure is spaced from the inner side of the limiting gasket 3.2 by a certain distance, so that the upper connecting plate 2.4 of the vertical vibration reduction structure can move upwards along the connecting metal rod 4.1 when an earthquake occurs.
The limiting structure 3 comprises a limiting shell 3.1 covered outside the vertical vibration reduction structure 2, and the limiting structure 3 is fixedly connected with the connecting metal rod 4.1 through threads; when an earthquake occurs, the limiting shell 3.1 covers the outside of the vertical vibration reduction structure 2, so that the displacement of the vertical vibration reduction structure 2 in the horizontal direction and the vertical direction can be limited, and the upper structure is prevented from overturning and pulling away from the support.
In the invention, the connecting metal rods 4.1 are four steel rods with threads at two ends, the upper end and the lower end of the connecting metal rods 4.1 are respectively connected with the limiting structure 3 and the laminated rubber structure 1, the vertical vibration reduction structure 2 only bears vertical load, and the laminated rubber structure 1 bears vertical load and horizontal load. Four threaded holes are formed in the upper connecting plate and the lower connecting plate of the laminated rubber structure 1, four threaded holes of the upper connecting plate 1.4 of the laminated rubber structure are connected with the lower end of the connecting metal rod 4.1, and four threaded holes of the lower connecting plate 1.2 of the laminated rubber structure are connected with the lower connecting plate 1.1 of the support through bolts. When an earthquake occurs, the laminated rubber shear deformation dissipates horizontal earthquake energy, the horizontal direction including X-direction and Y-direction earthquake energy dissipation is realized through the laminated rubber structure 1, and meanwhile, the laminated rubber structure 1 deforms to dissipate the vertical direction, namely Z-direction earthquake energy; the vertical vibration reduction structure 2 dissipates seismic energy in the vertical direction, i.e., the Z direction, through deformation energy consumption. The natural vibration period of the vibration isolation structure is prolonged through the combined action of the laminated rubber structure 1 and the vertical vibration reduction structure 2, so that energy transmitted to upper electric equipment is dissipated, and the three-dimensional vibration reduction and isolation functions of the vibration reduction and isolation support X, Y, Z in three directions are realized.
If the laminated rubber 1.3 is damaged in an earthquake, the laminated rubber vibration isolation structure 1 can be conveniently replaced because the laminated rubber vibration isolation structure 1 is connected with the connecting metal rod 4.1 through bolts, and the lower support connecting plate 1.1 is connected with the foundation 5 or the steel bracket 8 through bolts.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention and is not intended to limit the invention, but rather the present invention is described in detail with reference to the foregoing embodiments, and modifications and equivalents of some of the technical features described in the foregoing embodiments may be readily apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A three-dimensional shock-absorbing and isolating support for electrical equipment of the pillar type, comprising a laminated rubber shock-isolating structure (1), characterized in that: the vertical vibration reduction structure (2) is positioned on the laminated rubber vibration isolation structure (1), the semi-closed limiting structure (3) covers the periphery of the vertical vibration reduction structure (2), the side surface of the vertical vibration reduction structure (2) extends out of a notch on the side surface of the semi-closed limiting structure (3), the bottom surface of the limiting structure (3) is positioned on the upper surface of the laminated rubber vibration isolation structure (1), the connecting device (4) is vertically arranged, and the top end of the connecting device (4) is positioned on the top surface of the limiting structure (3); the bottom end of the connecting device (4) sequentially passes through the top surface of the limiting structure (3) and the vertical vibration reduction structure (2) until reaching the laminated rubber vibration isolation structure (1); the connecting device (4) is connected with the limiting structure (3), the vertical vibration reduction structure (2) and the laminated rubber vibration isolation structure (1), a plurality of elastic elements are arranged on the inner side of the vertical vibration reduction structure (2), and the upper portion of the vertical vibration reduction structure (2) can move up and down along the connecting device (4) in the limiting structure (3).
2. A three-dimensional shock absorbing and isolating mount for a post-like electrical device as defined in claim 1, wherein: the laminated rubber structure (1) comprises a support lower connecting plate (1.1), wherein the laminated rubber structure lower connecting plate (1.2) is positioned in the middle of the upper surface of the support lower connecting plate (1.1), the area of the laminated rubber structure lower connecting plate (1.2) is smaller than that of the support lower connecting plate (1.1), a plurality of first bolt holes (1.11) are formed in the uncovered part of the laminated rubber structure lower connecting plate (1.2) on the support lower connecting plate (1.1), and the plurality of first bolt holes (1.11) are formed in the support lower connecting plate (1.1) at intervals along the circumferential direction; the laminated rubber (1.3) is positioned on the upper surface of the laminated rubber structure lower connecting plate (1.2), the laminated rubber structure upper connecting plate (1.4) is positioned on the upper surface of the laminated rubber (1.3), and a plurality of second bolt holes (1.41) are formed in the laminated rubber structure upper connecting plate (1.4); the vertical vibration reduction structure (2) is arranged on the connecting plate (1.4) on the laminated rubber structure.
3. A three-dimensional shock absorbing and isolating mount for a post-like electrical device as defined in claim 1, wherein: the vertical vibration reduction structure (2) comprises a lower connecting plate (2.1) of the vertical vibration reduction structure, and an upper connecting plate (2.4) of the vertical vibration reduction structure is positioned above the lower connecting plate (2.1) of the vertical vibration reduction structure; a plurality of dowel bars are arranged between the lower connecting plate (2.1) of the vertical vibration reduction structure and the upper connecting plate (2.4) of the vertical vibration reduction structure, and each dowel bar comprises an upper dowel bar (2.8) and a lower dowel bar (2.2); the upper end of the upper force transmission connecting rod (2.8) is hinged with an upper connecting plate (2.4) of the vertical vibration reduction structure, and the lower end of the upper force transmission connecting rod (2.8) is hinged with the upper end of the lower force transmission connecting rod (2.2); the lower end of the lower force transmission connecting rod (2.2) is hinged with a lower connecting plate (2.1) of the vertical vibration reduction structure; an angle is formed between the lower force transmission connecting rod (2.2) and the upper force transmission connecting rod (2.8), and the angle is between 45 degrees and 135 degrees.
4. A three-dimensional shock absorbing and isolating mount for a post-like electrical device as defined in claim 3, wherein: each two dowel bars of the dowel bars are oppositely arranged, an elastic element is connected between each two dowel bars which are oppositely arranged, the elastic element is a high-performance spring (2.3), the two high-performance springs (2.3) are mutually perpendicular in space, and one high-performance spring (2.3) is positioned above the other high-performance spring; the middle part of each dowel bar is a hinge shaft (2.9); the lower end of the upper force transmission connecting rod (2.8) and the upper end of the lower force transmission connecting rod (2.2) penetrate through a hinge shaft (2.9), so that the hinged connection between the lower end of the upper force transmission connecting rod (2.8) and the hinge shaft (2.9) and the hinged connection between the upper end of the lower force transmission connecting rod (2.2) and the hinge shaft (2.9) are realized; one end of the high-performance spring (2.3) is sleeved at the middle part of one hinge shaft (2.9), and the other end of the high-performance spring (2.3) is sleeved at the middle part of the other opposite hinge shaft (2.9); the two opposite hinge shafts (2.9) are positioned at the same height, and the height of one hinge shaft (2.9) is higher than that of the other hinge shaft (2.9) in the two adjacent hinge shafts (2.9).
5. A three-dimensional shock absorbing and isolating mount for a post-like electrical device as defined in claim 3, wherein: a plurality of third bolt holes (2.5) are uniformly arranged on the lower connecting plate (2.1) of the vertical vibration reduction structure at intervals; a plurality of through holes (2.6) are uniformly arranged on the upper connecting plate (2.4) of the vertical vibration reduction structure at intervals, the number of the third bolt holes (2.5) is equal to that of the through holes (2.6), and each third bolt hole (2.5) corresponds to the position of one through hole (2.6); one or more fourth bolt holes (2.7) are formed in the middle of the upper connecting plate (2.4) of the vertical vibration reduction structure, and a plurality of through holes (2.6) encircle the periphery of the fourth bolt holes (2.7); each third bolt hole (2.5) or via (2.6) corresponds to one second bolt hole (1.41).
6. A three-dimensional shock absorbing and isolating mount for a post-like electrical device as defined in claim 1, wherein: the limiting structure (3) comprises a limiting shell (3.1) and a limiting gasket (3.2) positioned on the top surface of the limiting shell (3.1); the limiting shell (3.1) is a semi-closed columnar body, the top surface of the columnar body is an opening, the limiting gasket (3.2) is positioned in the middle of the top surface of the columnar body, the area of the limiting gasket (3.2) is smaller than that of the top surface of the columnar body, and the limiting gasket (3.2) is arranged at the upper end of the connecting metal rod (4.1); the bottom surface of the columnar body is an opening; the diameter of the bottom opening of the limiting structure (3) is larger than the diameter of the lower connecting plate (2.1) of the vertical vibration reduction structure and larger than the diameter of the upper connecting plate (2.4) of the vertical vibration reduction structure, the limiting structure (3) is located on the periphery of the vertical vibration reduction structure (2), the limiting structure (3) covers the vertical vibration reduction structure (2), the bottom of the limiting structure (3) is placed on the upper connecting plate (1.4) of the laminated rubber structure, and the bottom of the limiting structure (3) is located on the periphery of the lower connecting plate (2.1) of the vertical vibration reduction structure.
7. A three-dimensional vibration-reducing and insulating support for post-like electrical equipment according to claim 6, wherein: a plurality of strip-shaped gaps are arranged on the side surface of the columnar body at intervals, the number of the strip-shaped gaps is equal to that of the upper force transmission connecting rods (2.8) or the lower force transmission connecting rods (2.2), and each upper force transmission connecting rod (2.8) and the lower force transmission connecting rod (2.2) connected with the upper force transmission connecting rod (2.8) extend out of one strip-shaped gap.
8. A three-dimensional vibration-reducing and insulating support for post-like electrical equipment according to claim 6, wherein: a plurality of fifth bolt holes (3.21) are uniformly arranged on the limiting gasket (3.2) at intervals, and each fifth bolt hole (3.21) corresponds to one through hole (2.6) on the connecting plate (2.4) on the vertical vibration reduction structure; one or more through holes (3.22) are formed in the middle of the limiting gasket (3.2), and a plurality of fifth bolt holes (3.21) encircle the periphery of the through holes (3.22); the position of the through hole (3.22) corresponds to the position of a fourth bolt hole (2.7) on the connecting plate (2.4) on the vertical vibration reduction structure.
9. A three-dimensional shock absorbing and isolating mount for a post-like electrical device as defined in claim 1, wherein: the connecting device (4) comprises a plurality of connecting metal rods (4.1) and nuts (4.2), and the connecting device (4) is used for connecting the laminated rubber shock insulation structure (1), the spring vertical vibration reduction structure (2) and the limiting structure (3); after sequentially penetrating through a fifth bolt hole (3.21), a through hole (2.6) corresponding to the fifth bolt hole and a third bolt hole (2.5) corresponding to the fifth bolt hole, the bottom end of each connecting metal rod (4.1) stretches into a second bolt hole (1.41), a nut (4.2) is arranged at the top end of each connecting metal rod (4.1), the bottom surface of the nut (4.2) clings to the upper surface of a limiting gasket (3.2), the connecting metal rods (4.1) are rotated to firmly fix the lower connecting plate (2.1) of the vertical vibration reduction structure and the upper connecting plate (1.4) of the laminated rubber structure, and meanwhile, the limiting gasket (3.2) and the connecting metal rods (4.1) are firmly fixed; the via hole (2.6) is movably connected with the connecting metal rod (4.1), and the connecting plate (2.4) on the vertical vibration reduction structure can move up and down along the connecting metal rod (4.1).
10. A three-dimensional shock absorbing and isolating mount for a post-like electrical device as defined in claim 1, wherein: the top end of the shock-absorbing and isolating support is connected with a pillar type electrical device (6) through a bolt, and the bottom end of the shock-absorbing and isolating support is fixed on a reinforced concrete foundation (5) or a steel support (8) through a bolt and a first bolt hole (1.11).
CN202410058184.0A 2024-01-16 2024-01-16 Three-dimensional shock-absorbing and isolating support for pillar type electrical equipment Pending CN118030772A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410058184.0A CN118030772A (en) 2024-01-16 2024-01-16 Three-dimensional shock-absorbing and isolating support for pillar type electrical equipment

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Application Number Priority Date Filing Date Title
CN202410058184.0A CN118030772A (en) 2024-01-16 2024-01-16 Three-dimensional shock-absorbing and isolating support for pillar type electrical equipment

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118704649A (en) * 2024-06-28 2024-09-27 广州大学 A new type of electromagnetic seismic isolation bearing with dual functions of wind resistance and tension resistance
CN119163707A (en) * 2024-11-21 2024-12-20 吉林大学 A low frequency vibration isolator
CN120090071A (en) * 2025-05-06 2025-06-03 国网甘肃省电力公司 A seismic isolation device for high voltage electrical equipment in a substation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118704649A (en) * 2024-06-28 2024-09-27 广州大学 A new type of electromagnetic seismic isolation bearing with dual functions of wind resistance and tension resistance
CN119163707A (en) * 2024-11-21 2024-12-20 吉林大学 A low frequency vibration isolator
CN120090071A (en) * 2025-05-06 2025-06-03 国网甘肃省电力公司 A seismic isolation device for high voltage electrical equipment in a substation

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