KR20170061020A - Earthquake-proof apparatus for switchgear - Google Patents

Earthquake-proof apparatus for switchgear Download PDF

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Publication number
KR20170061020A
KR20170061020A KR1020150165897A KR20150165897A KR20170061020A KR 20170061020 A KR20170061020 A KR 20170061020A KR 1020150165897 A KR1020150165897 A KR 1020150165897A KR 20150165897 A KR20150165897 A KR 20150165897A KR 20170061020 A KR20170061020 A KR 20170061020A
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KR
South Korea
Prior art keywords
case
lower case
earthquake
vibration
fixing
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KR1020150165897A
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Korean (ko)
Inventor
허광식
배종우
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(주)효성파워택
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Priority to KR1020150165897A priority Critical patent/KR20170061020A/en
Publication of KR20170061020A publication Critical patent/KR20170061020A/en

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/54—Anti-seismic devices or installations
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression 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
    • F16F15/04—Suppression 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

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

The earthquake-resistant apparatus for a switchgear equipped with a ground interlocking plate according to the present invention comprises:
In a conventional seismic retrofitting device for a power transmission and transmission system, a plate-like outer rim is fixed by a fastening member and a bottom surface on which a power storage enclosure is installed, and a cup- A first vibration absorbing panel having a first concave portion and a guide passage for guiding a horizontal movement of the rolling member to the first concave portion, and a side wall having an inner accommodating space formed in a central portion of the upper surface, And a lower surface of the lower case is connected to the lower surface of the lower housing by a lower surface of the lower case. The lower case is formed with a second depression corresponding to the first depression, An upper case having an inner housing space and an outer wall surrounding the inner housing space and enclosing both side walls thereof; A second securing screw penetrating through the upper case to fix the securing screw through the upper case and fixing the securing screw formed in the central portion of the lower surface of the lower case, A supporting member having a fixing nut for adjusting the height between the upper surfaces of the upper case and the elastic accommodating elastic member for receiving the linear vibration absorbed in the space for accommodating the lower case.

Description

[0001] EARTHQUAKE-PROOF APPARATUS FOR SWITCHGEAR [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-resistant apparatus for a switchgear equipped with a ground interlocking plate, and more particularly to a seismic system for a switchgear equipped with a grounding interlocking plate to which a horizontal vibration absorbing panel and a vertical vibration absorbing elastic body are coupled.

Generally, it is impossible to supply electric power which can be used as it is from the electric power company like general electric equipment of low voltage of 110V or 220V because electric power of private use such as building or factory is large.

Therefore, it is necessary to transform a high voltage of 3,300V or 6,600V from a power line of a substation into a commercial voltage, and especially in a private building of a large-scale building, a special high voltage of 22.9kV is supplied and transformed into a commercial voltage again. The equipment that makes this possible is the switchboard. These switchboards include a distribution panel, a motor control center panel, a low-pressure panel, a high-pressure panel, a transformer panel, and an extra-high pressure panel.

These substations are equipped with a power reception facility for receiving high pressure and special high pressure from substations, a substation for substracting high voltage and special high voltage received from substations to commercial voltage, It is formed as a distribution facility for supplying electricity to supply the electricity safely and efficiently into the building.

The enclosure of such a switchgear is constructed such that an anchor bolt is inserted into an inner or outer concrete floor of the building, the floor angle is assembled, the column angle is assembled to the floor angle, and the enclosure is assembled to the assembled column angle, The angle is assembled by bolt tightening and the seismic design is not done separately.

Therefore, in the conventional switchgear, the vibration situation is directly transmitted to the panel itself due to the mechanical vibration or the earthquake caused by the electromagnetic force due to the vibration of the floor or the energization of the large electric power, and various devices mounted therein are damaged by an earthquake or the like It is a fact that is often happening. That is, various components installed in the enclosure flow, and damage such as power outage and fire occurs.

As a conventional technique for solving such a problem, a switchboard having an earthquake-resistant function of domestic patent No. 0939475 is known, and representative drawings of this patent are shown in Figs. 1A to 1C. FIG. 1A is an exploded perspective view of an earthquake-proofing means of a power transmission and distribution system according to the prior art, and FIGS. 1B and 1C are sectional views showing a state of mitigating an impact force applied in a vertical or horizontal direction in the earthquake-proofing means. (The reference numerals shown in Figs. 1A to 1C are not related to the reference numerals of the embodiments according to the present embodiment,

Referring to Figs. 1A to 1C, when vibrations or shocks are applied to the switchboard, the earthquake-proof means mitigates the impact in the form of a dotted line shown in Figs. 1B and 1C. However, since the vibration-isolating means is coupled to the bottom angle 31 and the supporting angle 32 so as to overlap only a part of the bottom angle 31, the supporting angle 32 is smaller than the bottom angle 31, A problem arises in which it is detached from the apparatus.

1C, when the horizontal impact is applied, the support bolts 72 are moved at a predetermined angle in the bearing support case 71, which are worn out or worn while hitting the support bolts 72, The bearing support case 71 is disassembled. Also, there is a problem that the support bolt 72 hits the bearing support case 71 to generate noise.

On the other hand, in addition to the above-mentioned problems, there is also a problem that the load applied to each bottom of the switchboard is not constant, and the load to be handled by each of the outboards is different, so that the interval between the two outboards of each outboard is not constant.

As another conventional technique for solving such a problem, there is known a domestic power saving lamp for domestic power distribution system of Korean Patent No. 1100147, and a representative drawing of this patent is shown in Fig. Fig. 2 is a perspective view of a dustproof box for a switchboard according to the prior art. (The reference numerals shown in FIG. 2 are not related to the above-described prior art and reference numerals in the drawings according to this embodiment.

2, a plurality of dustproof wires 1 are installed on the dustproof partition plates 2 and 3, and a leveler 6 is provided between the dustproof partition plates 2 and 3. Here, the number of the coil springs 10 of the leveler 6 is controlled to adjust the supporting force of the discharge port 100.

However, such a vibration damping element 100 has a problem that the leveler 6 is composed of the anti-vibration rubber 9 and the coil spring 10, which is complicated in construction.

And the type and characteristics of the vibration proof rubber (9), it is required to carry out a troublesome operation, and it takes a long time to work.

Further, since the structure is such that the number of the coil springs 10 must be differently applied after measuring the load at each corner of the switchgear, there is a problem that the operation is troublesome.

Korean Registered Patent No. 10-0939475 (Jan. 22, 2010)

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a horizontal vibration absorbing panel fixed to a floor of a ground and a lower case fixedly mounted on a cabinet, And to provide a seismic isolation system for a seismic interchange system equipped with a ground interlocking plate capable of minimizing external shock or vibration transmitted to a cabinet due to movement of the ground in a horizontal direction.

Another object of the present invention is to provide a coupling structure in which a horizontal vibration absorbing panel for absorbing horizontal vibration of a ground and a vertical vibration absorbing elastic body for buffering vertical vibration of the ground are independently coupled to each other, Which is capable of increasing the seismic performance of a switchgear housing according to the movement of the ground in which vibration of the switchgear is simultaneously generated.

According to an aspect of the present invention, there is provided an earthquake-resistant apparatus for a switchgear equipped with a ground interlocking plate,

And a first depressed portion in the form of a cup (CUP) for receiving a plurality of rolling members made of an elastic material upwardly protruding from the inner surface of the bottom plate, Wherein the first depression is provided with a horizontal vibration absorbing panel having a guide passage for guiding horizontal movement of the rolling member;

And a lower surface of the upper surface of the horizontal vibration absorbing panel is formed with a first side wall having an inner accommodating space at a central portion thereof facing upward and a lower surface of a first cup- A lower case formed in a radial shape of a second depression corresponding to a shape of a cap (CAP) opposite to the depression, and having a detachment prevention groove formed at the center of the lower surface;

An upper case having an outer wall formed at a rear surface thereof to receive and store the inner space of the lower case while enclosing the inner space of the lower case;

The upper case is fixed to the lower case by a first fixing screw and the lower case is fixed to the lower case by a first fixing screw, And a lower fixing screw is formed between the second fixing screw and the upper surface of the upper case;

And a vertical vibration absorbing elastic body formed by combining an earthquake-resistant spring having a resilient restoring force and an elastic urethane cushion having a supporting force, the resilient body having an inner cavity penetrating the support body to an inner center space and having an inner space for accommodating the upper case and the lower case.

In the seismic isolation device for a switchgear equipped with a ground interlocking plate according to the present invention, a guide passage having an upward sloping surface for guiding horizontal movement of the rolling member is formed at a connecting portion for radially connecting each first depression of the horizontal vibration absorption panel .

According to the present invention having the above-described configuration, the following effects can be achieved.

There is an effect that the external shock or vibration transmitted to the cabinet due to the movement of the ground in the horizontal direction can be minimized

It is possible to improve seismic performance due to vibration in the horizontal direction by the horizontal vibration absorbing panel moving in conjunction with the ground and to improve the seismic performance of the wastegate enclosure due to vertical vibration by the vertical vibration absorbing elastic body .

Further, by the height fixing nut provided between the second fixing screw and the upper case upper surface, the present invention can be applied to a control panel having a constant load, and the present invention can be applied to a place where the bottom surface is uneven.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of protection of the present invention should be determined only by the appended claims.

Figs. 1A to 1C are an exploded perspective view and a cross-sectional view of an earthquake-proofing means of a switchboard according to the prior art.
2 is a perspective view of a dustproof box for a switchboard according to another prior art.
3 is a sectional view showing a seismic isolation system for a switchgear equipped with a ground interlocking plate according to the present invention.
4A and 4B are diagrams illustrating examples of the use state of the present invention according to the vibration of the ground in the horizontal direction.
5A and 5B are diagrams illustrating examples of the use state of the present invention according to vibration in the vertical direction of the ground.
6A to 6C are views showing an embodiment of a vertical vibration absorbing elastic body according to the present invention.
FIG. 7 is a front view showing a switchboard in which a seismic isolation device for a switchgear equipped with a ground interlocking plate according to the present invention is installed.
FIGS. 8A and 8B are diagrams showing that the earthquake-resistant earthquake can be performed in a state in which the earthquake-resistant apparatus for a switchgear equipped with a ground interlocking plate according to the present invention is installed,

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and how to accomplish them, will become apparent by reference to the embodiments described in detail below with reference to the accompanying drawings.

However, the present invention is not limited to the embodiments described herein but may be embodied in other forms.

Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

In the drawings, the thicknesses of layers and regions are exaggerated for clarity.

Terms such as top, bottom, top, bottom, or top, bottom, etc. are used to distinguish relative positions in components.

For example, in the case of naming the upper part of the drawing as upper part and the lower part as lower part in the drawings for convenience, the upper part may be named lower part and the lower part may be named upper part without departing from the scope of right of the present invention .

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention.

The singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, the terms "comprises", "having", and the like are used to specify that a feature, a number, a step, an operation, an element, a part or a combination thereof is described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, components, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.

Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be construed as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a seismic isolation system for a switchgear equipped with a ground interlocking plate according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

4A and 4B are views illustrating the use state of the present invention according to the vibration of the ground in the horizontal direction, and FIGS. 5A and 5B are views showing the state of use of the ground according to the embodiment of the present invention. 6A to 6C are views showing an embodiment of a vertical vibration absorbing elastic body according to the present invention.

3 to 5, the earthquake-resistant apparatus for a switchgear equipped with a ground interlocking plate according to the present invention includes a horizontal vibration absorbing panel 10, a lower case 20, an upper case 30, a support body 40, And an absorbing elastic body (50).

It can be seen that the horizontal vibration absorbing panel 10 of the present invention has a structure in which the horizontal vibration absorbing panel 10 is closely tightly fixed to the floor bottom surface 70 on which the power transmission and reception panel is installed via a separate fastening member 11, The lower case 20 coupled to the upper surface of the absorption panel 10 is fixedly mounted to the cabinet 60 together with the upper case 30 and the vertical vibration absorbing elastic body 50 via the support body 40 .

The upper surface of the horizontal vibration absorbing panel 10 of the present invention is configured such that a plurality of cup-shaped first depressions 12a and 12b are connected to the inner surface through guide passages 13a and 13b formed in a radially upward sloping manner The first depressions 12a and 12b have a structure in which the lower surfaces of a plurality of rolling members 14 made of an elastic material are stacked and accommodated by the first depressions 12a and 12b.

The bottom surface of the lower case 20 coupled with the upper surface of the horizontal vibration absorbing panel 10 is formed with a shape opposite to the first depressed portions 12a and 12b of the above- And a second depressed portion 23 having a cap shape corresponding to the first depressed portion 23 is formed in the second depressed portion 23. The upper depressed surface of the plurality of rolling members 14 made of the above- It is constructed to accommodate and enclose.

Accordingly, the rolling members 14 have a structure in which the lower surface and the upper surface are fitted to the first depressed portions 12a and 12b of the horizontal vibration absorbing panel 10 and the second depressed portions 23 of the lower case 20 So that a stable state of engagement between the horizontal vibration absorbing panel 10 and the lower case 20 is induced.

At this time, if a horizontal external impact or vibration is applied to the ground bottom surface 70, the first depressions 12a and 12b of the horizontal vibration absorbing panel 10 and the second depressions 23 of the lower case 20 The rolling members 14, which are engaged with the ground bottom surface 70, act as the driving rollers when the external impact or vibration is rotated in the applying direction, The panel 10 slidingly moves in the horizontal direction along the rotating direction of the rolling members 14 while the switchgear housing 60 in which the lower case 20 to which the external impact is not applied is fixedly mounted, It is possible to improve the seismic performance due to the shock or vibration in the horizontal direction.

Furthermore, when strong external impact or vibration in the horizontal direction is applied to the bottom surface 70 of the ground, the guide depressions 13a and 13b formed radially upwardly inclined from the first depressions 12a and 12b of the horizontal vibration- The rolling members 14 move in the direction in which a strong impact is transmitted along the guide paths 13a and 13b and at the same time the horizontal vibration absorbing panel 10 fixedly coupled with the ground bottom surface 70 The movement of the lower case 20 in a state of being independent from each other without the separate fastening structure with respect to the horizontal vibration absorbing panel 10 can be minimized As described above, since the displacement of the cabin 60 can be minimized, seismic performance due to shocks or vibrations in the horizontal direction can be improved.

Therefore, the upper surface of the horizontal vibration absorbing panel 10 and the lower surface of the lower case 20 of the present invention have a joint structure independent of each other by an elastic material rolling member 14, The horizontal vibration absorbing panel 10 and the lower case 20 are firmly supported to each other when there is no vibration or there is external impact or vibration in the vertical direction of the ground.

On the other hand, when the external impact or vibration of the ground in the horizontal direction is weak, the rolling member 14 of the elastic material does not separate from the first depressions 12a, 12b to the second depressions 23. The reason for this is that the guide channels 13a and 13b having a path diameter smaller than the diameter of the first dimples 12a and 12b to the second dimples 23 can not be separated. Therefore, only the horizontal vibration absorbing panel 10 having a joining structure independent from the lower case 20 moves in the horizontal direction along the rotating direction of the rolling member 14, It is possible to improve seismic performance from vibration.

The lower case 20 is formed with both side walls 22a and 22b which form a predetermined accommodation space 21 at an inner central portion toward the upper side from the upper side and are formed with a predetermined center portion formed at the inner center portions of the side walls 22a and 22b The lower case 20 has a receiving space 21 for accommodating a vertical vibration absorbing elastic body 50 to be described later. 24 are formed.

The upper case 30 of the present invention has a front portion 31 for closely fitting the lower surface of the switchgear housing 60 and a pair of side walls 22a and 22b of the lower case 20 Absorbing elastic body 50 to be described later is engaged with a predetermined accommodation space 21 formed by the outer wall 32 accommodating the inner case 22 and the side walls 22a and 22b of the lower case 20 .

The support 40 of the present invention also passes through the centers of the lower and upper cases 20, The support 40 includes a first securing screw 41, a second securing screw 42, and a height fixing nut 43. The first fixing screw 41 is fixed to the detachment prevention groove 24 formed in the lower center portion of the lower case 20 from the lower portion of the support body 40. The second fixing screw 42 passes through the upper case 30 at the upper portion of the support body 40 and is fixed through the lower surface of the enclosure 60. The height fixing nut 43 is provided between the second fixing screw 42 and the upper surface of the upper case 30. It is possible to apply the present invention to a place where the floor 70 is uneven, by adjusting the height fixing nut 43, and to the application of the floor to the floor where the load is not constant.

5A, the elastic member 50 for absorbing vertical vibration according to an embodiment of the present invention includes the support 40, which is installed through the inner center of the upper case 30 and the lower case 20, Which is provided in the inner housing space 21 of the upper case 30 and the lower case 20 as a central axis and which has an elastic restoring force in the inner housing space 21 of the upper case 30 and the lower case 20, (51) and an elastic urethane cushion (52) having a supporting force.

Specifically, the vertical vibration absorbing elastic body 50 has a structure in which a vibration resisting spring 51 having an elastic restoring force and an elastic cushioning cushion 52 having a supporting force are integrally formed, The buffering action of the earthquake-proof spring 51 and the elastic urethane cushioning 52 which perform the shrinking action and the restoring action repeatedly along the vibration direction is performed in the internal accommodation space 21 of the lower case 20, The vibration impact transmitted to the housing 60 can be minimized.

 The earthquake-proof spring 51 and the elastic urethane cushion 52 are preferably made of a material having a tensile strength of at least 50 N / mm 2 and a compressive strength of 80 N / mm 2 or more.

When the vibration in the vertical direction and the vibration in the horizontal direction simultaneously occur at the floor bottom of the earthquake-proof spring 51, the vibration-damping spring 51 performs a vibration damping operation by the horizontal vibration-absorbing panel 10, A strong tensile force is applied to the inner accommodating space 21 of the case 20 so as to bend right and left in the direction corresponding to the vibration or to be compressed or restored up and down so that the vibration damping action in the horizontal direction and the vibration damping action in the vertical direction are performed simultaneously It will be possible.

The elastic urethane cushion 52 has a structure in which a spring insertion portion 52a and a plurality of cushioning reinforcing holes 52b are formed to be engaged with the earthquake-resistant spring 51. In the floor bottom surface 70, The shock absorbing spring 40 and the plurality of cushioning reinforcing holes 52b constituting the elastic urethane cushioning 52 repeatedly perform the contracting action and the restoring action as shown in Figures 6A to 6C, The vibrating impact in the vertical direction generated in the surface 70 performs the buffering action in the internal accommodation space 21 of the lower case 20 to minimize the vibration caused by the external shock transmitted to the body of the switchgear 60 It will be possible.

8A and 8B show a state in which the earthquake-resistant apparatus 100 is capable of earthquake-proof when vibration occurs due to an earthquake or the like in a power-transmission panel equipped with a ground-breaking interlocking apparatus 100 equipped with a ground interlocking plate according to the present embodiment. 8A and 8B are views showing that the earthquake-resistant earthquake can be performed in a state in which the earthquake-resistant apparatus for earthquake-resistance is equipped with the ground interlocking plate according to the present invention and the earthquake-resistant earthquake occurs.

FIG. 8A shows a state in which the switchboard is inclined to the left, and FIG. 8B shows a state in which the switchboard is inclined to the right. As shown in the figure, even if the upper case 30 fixed to the switchgear housing 60 is tilted due to the occurrence of vibration and the switchgear being shaken to the left and right, the seismic spring 51 and the urethane cushioner 52, There is a possible effect.

As described above, it is to be understood that the technical structure of the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than the foregoing description, All changes or modifications that come within the scope of the equivalent concept are to be construed as being included within the scope of the present invention.

100; Earthquake resistant equipment for switchgear equipped with ground interlocking plate
10; Horizontal vibration absorption panel
20, 30; case
11; Fastening bolt
12a, 12b; The first depression
13a, 13b; Guide passage
14; Rolling member
21; Accommodation space
22a, 22b; Both side walls
23; The second depression
24: Leaving prevention groove
31; Front side
32; outer wall
40; Support
41, 42; Set screw
43; Height fixing nut
50; The vertical vibration absorbing elastic body
51; Seismic spring
52; Urethane shock absorber
52a; Spring insertion portion
52b; Cushioning reinforcement hole
60; Enclosure of Switchboard
70; Bottom surface

Claims (3)

In an ordinary seismic retrofitting device for a transmission /
The outer edge of the plate shape is fixed to the floor surface and the fastening member on which the switchgear housing is installed and the inner surface thereof is provided with a cup-shaped first depression for receiving a rolling member of an elastic material upwardly protruding, A horizontal vibration absorbing panel provided with a guide passage for guiding horizontal movement of the rolling member;
And a second depressed portion having a shape of a cap (CAP) corresponding to the first depressed portion is formed on a bottom surface of the upper surface of the lower case, Wow;
An upper case having a front portion coupled to the cabinet and a rear portion having an inner space for receiving the lower portion of the lower case,
A first fixing screw passing through the center of the housing and the upper and lower cases and fixing the release preventing grooves formed at the central portion of the lower face of the lower case, and a second fixing member passing through the upper case and fixing the housing through the switchgear housing A support having a screw and a fixing nut for adjusting the height between the second fixing screw and the upper surface of the upper case;
And an elastic body for straight vibration absorption accommodated in the inner housing space of the lower case. The apparatus according to claim 1,
Wherein the first concave portion has a path diameter smaller than the diameter of the first diameter of the first depression, and is formed to be inclined upward from each depression. 2. The vertical vibration absorbing elastic body according to claim 1,
And a resilient urethane shock absorber having a supporting force. The earthquake-resistant apparatus according to claim 1,
KR1020150165897A 2015-11-25 2015-11-25 Earthquake-proof apparatus for switchgear KR20170061020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020150165897A KR20170061020A (en) 2015-11-25 2015-11-25 Earthquake-proof apparatus for switchgear

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Application Number Priority Date Filing Date Title
KR1020150165897A KR20170061020A (en) 2015-11-25 2015-11-25 Earthquake-proof apparatus for switchgear

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101837928B1 (en) * 2017-12-13 2018-03-21 (주)진광건설엔지니어링 Damping apparatus for communication system
KR102005763B1 (en) * 2019-01-30 2019-07-31 주식회사 삼성파워텍 Seismic device for incoming/distribution board of V - plate spring type
KR102070084B1 (en) * 2019-08-06 2020-01-28 추인엽 Seismic detection system for switchboard
KR102109965B1 (en) * 2019-11-08 2020-05-12 (주)이나인파워텍 Unit for switchgear
KR102291357B1 (en) * 2021-01-23 2021-08-20 (주)다올산업 seismic device for distribution board
KR20220028805A (en) * 2020-08-31 2022-03-08 양동호 3-axis vibration isolation mount using ball and spring for seismic isolation
KR102432732B1 (en) * 2022-03-16 2022-08-18 주식회사유성계전 switchboard equipped with seismic device
CN116937242A (en) * 2023-08-14 2023-10-24 四川智慧连电气***有限责任公司 Shockproof bus connecting device for electric power conduction

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101837928B1 (en) * 2017-12-13 2018-03-21 (주)진광건설엔지니어링 Damping apparatus for communication system
KR102005763B1 (en) * 2019-01-30 2019-07-31 주식회사 삼성파워텍 Seismic device for incoming/distribution board of V - plate spring type
KR102070084B1 (en) * 2019-08-06 2020-01-28 추인엽 Seismic detection system for switchboard
KR102109965B1 (en) * 2019-11-08 2020-05-12 (주)이나인파워텍 Unit for switchgear
KR20220028805A (en) * 2020-08-31 2022-03-08 양동호 3-axis vibration isolation mount using ball and spring for seismic isolation
KR102291357B1 (en) * 2021-01-23 2021-08-20 (주)다올산업 seismic device for distribution board
KR102432732B1 (en) * 2022-03-16 2022-08-18 주식회사유성계전 switchboard equipped with seismic device
CN116937242A (en) * 2023-08-14 2023-10-24 四川智慧连电气***有限责任公司 Shockproof bus connecting device for electric power conduction
CN116937242B (en) * 2023-08-14 2024-02-13 四川智慧连电气***有限责任公司 Shockproof bus connecting device for electric power conduction

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