KR102309874B1 - Seismic switchgear that combines compression spring and tension spring - Google Patents

Abstract

Disclosed is an earthquake-resistant switchgear with a compression spring and a tension spring, which can absorb and mitigate vibrations or shocks in vertical and horizontal directions. The earthquake-resistant switchboard with a compression spring and a tension spring according to an embodiment of the present invention comprises a base structure disposed on the ground, a power distribution panel disposed on top of the base structure, and at least one seismic assembly disposed between the base structure and the power distribution panel and configured to elastically support the distribution panel. The seismic assembly includes a first support assembly configured to support a lower surface of the power distribution panel, a second support assembly supported on an upper surface of the base structure, and a first elastic body disposed between the first support assembly and the second support assembly to support the first support assembly and the second support assembly. The first elastic body is configured to elastically support the first support assembly and the second support assembly in a direction in which the first support assembly and the second support assembly become spaced apart from each other and in a circumferential direction of the first elastic body.

Description

Seismic switchgear that combines compression spring and tension spring

The present invention relates to an earthquake-resistant switchgear in which a compression spring and a tension spring are mixed.

In general, a switchgear is a device used for monitoring, control, and protection of the power system. It refers to an assembly of unit devices, support structures, and wires to connect them, and has built-in facilities for dividing power to the intended use or its It will be equipped with panels that control the facilities.

If vibration or shock is applied to the switchboard due to external factors such as tectonic fluctuations or explosions, electrical components such as internal power devices, wiring and protective relays of the control panel may be damaged, and the power supply will be interrupted due to the resulting power failure or there is a risk of fire.

Specifically, since the conventional switchgear is installed so as to be in direct contact with the upper surface of the steel structure disposed on the floor and does not have a separate earthquake-resistant structure, mechanical vibration or vibration against earthquake due to vibration of the floor or electromagnetic force according to large-power energization This is transmitted as it is, and there is a problem in that damage or deformation of the device occurs due to impact on various devices mounted therein.

Registered Patent Publication No. 10-0964544

The present invention has been devised to solve the above problems, and an object of the present invention is to provide an earthquake-resistant switchgear in which a compression spring and a tension spring are mixed to absorb and relieve vibrations or shocks in vertical and horizontal directions. .

In addition, another object of the present invention is to maximize the cushioning performance and seismic performance by providing a plurality of compression elastic bodies and a plurality of tensile elastic bodies together, and through this, a compression spring capable of preventing damage and deformation of various devices accommodated in the housing. And to provide an earthquake-resistant switchgear in which a tension spring is mixed.

In addition, it is to provide an optimal seismic switchgear that maximizes the seismic performance by adding or subtracting a device that is a mixture of a compression spring and a tension spring according to the load according to the arrangement of devices inside the switchgear.

The problems of the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

In accordance with an embodiment of the present invention for solving the above problems, an earthquake-resistant switchgear in which a compression spring and a tension spring are mixed includes a base structure disposed on the ground; a power distribution box disposed on the base structure; and at least one earthquake-resistant assembly disposed between the base structure and the power distribution box and configured to elastically support the power distribution box, wherein the earthquake-resistant assembly includes a first support assembly supporting a lower surface of the power distribution box. ; a second support assembly supported on an upper surface of the base structure; and a first elastic body disposed between the first support assembly and the second support assembly to support the first support assembly and the second support assembly, wherein the first elastic body comprises: the first support assembly and the second support assembly; and elastically supporting the first support assembly and the second support assembly in a direction in which the second support assemblies are spaced apart from each other and in a circumferential direction of the first elastic body.

The first support assembly may include a first support plate for supporting a lower surface of the power distribution box; and a first connection plate in the form of a disk disposed in the center of a lower surface of the first support plate and coupled to one end of the first elastic body, wherein the second support assembly includes a first support plate supported on the upper surface of the base structure. 2 support plates; and a second connection plate in the form of a disk disposed in the center of the upper surface of the second support plate and coupled to the other end of the first elastic body.

The first elastic body may have a wedge structure in which the size of the diameter gradually increases from one end coupled to the first connecting plate along the axial direction toward the other end coupled to the second connecting plate.

The seismic assembly further includes a plurality of second elastic bodies disposed along a circumference of the first elastic body to support the first and second support assemblies, and the second elastic body includes: the first support assembly and the second elastic body; The second support assembly may be configured to elastically support the first support assembly and the second support assembly in a direction in which they are adjacent to each other.

The second elastic body may include a first plate bolt penetrating through the first support plate, a portion of which is received and supported by the first support plate, and a portion of the first plate bolt disposed below the first support plate; a first fastening nut fastened to the first plate bolt and disposed below the first support plate; a second plate bolt passing through the second support plate, a portion of which is received and supported by the second support plate, and the other portion is disposed above the second support plate; a second fastening nut fastened to the second plate bolt and disposed above the second support plate; and a tension disposed between the first fastening nut and the second fastening nut and elastically supporting the first fastening nut and the second fastening nut in a direction in which the first and second support plates are adjacent to each other. It may include an elastic member.

The first fastening nut is spaced apart from the lower surface of the first support plate, and the second fastening nut is spaced apart from the upper surface of the second support plate, and the first support plate and the second fastening nut are spaced apart from the upper surface of the second support plate. A gap may be formed between the first fastening nut and between the second support plate and the second fastening nut, respectively.

The seismic assembly further includes a third elastic body arranged in plurality along the circumference of the first elastic body to support the first support assembly and the second support assembly at positions different from those of the second elastic body; The elastic body may be configured to elastically support the first support assembly and the second support assembly in a direction in which the first support assembly and the second support assembly are spaced apart from each other.

The third elastic body may include: a tubular anti-vibration rod disposed between the first supporting plate and the second supporting plate to support the first supporting plate and the second supporting plate, and having a supporting jaw and a receiving hole therein; an anti-loosening bolt sequentially passing through the second support plate, the vibration-proof rod, and the first support plate so that a part is disposed in the receiving hole, and the other part is disposed above the first support plate; an anti-loosening nut fastened to the anti-loosening bolt and supported on an upper surface of the first support plate; a support nut accommodated in the receiving hole and supported on an upper surface of the second support plate; and a compression elastic member accommodated in the receiving hole and disposed between the support jaw and the support nut and elastically supporting the vibration-proof rod and the support nut in a direction in which the first support plate and the second support plate are spaced apart from each other. may include

The first support plate includes a 1-1 through hole through which the first plate bolt passes and a 1-2 through hole through which the loosening prevention bolt passes, and the second support plate includes the second plate. It may include a 2-1 through-hole through which the bolt is penetrated and a 2-2 through-hole through which the loosening prevention bolt is penetrated.

A diameter of the receiving hole may be greater than a diameter of the anti-loosening bolt, and a diameter of the 1-2 through-hole may be greater than a diameter of the anti-loosening bolt and smaller than an outer diameter of the anti-loosening nut.

The earthquake-resistant assembly may include: a first fixing assembly configured to fix the first support assembly to the power distribution box; and a second securing assembly configured to secure the second support assembly to the base structure.

The first fixing assembly includes a first fixing bolt passing through the power distribution box and the first support plate, and a first fixing bolt fastened to the first fixing bolt to bring the first support plate into close contact with the lower surface of the power distribution box. a nut, the second fixing assembly, a second fixing bolt passing through the base structure and the second supporting plate, and fastening to the second fixing bolt to bring the second supporting plate into close contact with the upper surface of the base structure It may include a second fixing nut.

The first support plate further includes 1-3 through-holes through which the first fixing bolts pass,

The second support plate may further include a 2-3th through-hole through which the second fixing bolt passes.

According to an embodiment of the present invention, by arranging an earthquake-resistant assembly containing a plurality of elastic bodies acting in different directions between the base structure and the power distribution box, the shock-absorbing performance and the earthquake-resistant performance are maximized, and through this, in the vertical and horizontal directions By mitigating vibration, torsion and shock applied to the box, it is possible to prevent damage and deformation of the box and various devices accommodated in the box.

The effect according to the present invention is not limited by the contents exemplified above, and more various effects are included in the present invention.

1 is a diagram schematically showing an earthquake-resistant switchgear in which a compression spring and a tension spring are mixed in an embodiment of the present invention.
2 is a plan view showing an earthquake-resistant assembly of an earthquake-resistant switchboard in which a compression spring and a tension spring are mixed in an embodiment of the present invention.
3 is a front view showing an earthquake-resistant assembly of a seismic switchgear in which a compression spring and a tension spring are mixed in an embodiment of the present invention.
4 is a front view illustrating a state in which the first elastic body is disposed between the first and second support assemblies of the earthquake-resistant switchboard in which the compression spring and the tension spring are mixed in the embodiment of the present invention.
5 is a front view illustrating a state in which a second elastic body is disposed between the first and second support assemblies of the earthquake-resistant switchboard in which a compression spring and a tension spring are mixed according to an embodiment of the present invention.
6 is a front view illustrating a state in which a third elastic body is disposed between the first and second support assemblies of the earthquake-resistant switchboard in which a compression spring and a tension spring are mixed according to an embodiment of the present invention.
7 is an enlarged view of an enlarged portion "A" of FIG. 1 .

Hereinafter, various embodiments will be described in more detail with reference to the accompanying drawings. The embodiments described herein may be variously modified. Certain embodiments may be depicted in the drawings and described in detail in the detailed description. However, the specific embodiments disclosed in the accompanying drawings are only provided to facilitate understanding of various embodiments. Therefore, the technical idea is not limited by the specific embodiments disclosed in the accompanying drawings, and it should be understood to include all equivalents or substitutes included in the spirit and scope of the invention.

Terms including an ordinal number, such as first, second, etc., may be used to describe various elements, but these elements are not limited by the above-described terms. The above terminology is used only for the purpose of distinguishing one component from another component.

In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof. When a component is referred to as being “connected” or “connected” to another component, it is understood that the other component may be directly connected or connected to the other component, but other components may exist in between. it should be On the other hand, when it is mentioned that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle.

Meanwhile, as used herein, a “module” or “unit” for a component performs at least one function or operation. And “module” or “unit” may perform a function or operation by hardware, software, or a combination of hardware and software. In addition, a plurality of “modules” or a plurality of “units” other than a “module” or “unit” that must be performed in specific hardware or are executed in at least one processor may be integrated into at least one module. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be abbreviated or omitted.

1 is a diagram schematically showing an earthquake-resistant switchgear in which a compression spring and a tension spring are mixed in an embodiment of the present invention.

1, the earthquake-resistant switchboard 1 (hereinafter referred to as 'seismic switchboard (1)') in which a compression spring and a tension spring are mixed according to an embodiment of the present invention is a base structure 10 disposed on the ground; It is disposed on the upper portion of the base structure 10 and includes a power distribution box 20 in which various devices (not shown) are accommodated therein.

For example, the power distribution box 20 includes a door (not shown), an inlet (not shown) receiving power from a distribution line (not shown), an automatic section switch (not shown) connected in series to the downstream of the inlet, an automatic section A lightning arrester (not shown) connected between the downstream of the switchgear and the ground, a power fuse (not shown) for protecting the transformer connected in series to the downstream of the automatic section switch, and a power supply and demand instrument connected in series to the downstream of the power fuse for protecting the transformer A transformer (not shown), an integrated wattmeter (not shown) that is connected to a transformer for power supply and demand and measures the amount of power, and a transformer (not shown) whose primary side is connected in series downstream of the transformer for power supply and demand. ), a main circuit breaker (not shown) connected to the secondary side of the transformer, and a plurality of circuit breakers (not shown) connected to the downstream of the main circuit breaker and blocking each load when necessary. But. The distribution box 20 is not necessarily limited thereto and may be implemented in various configurations and structures.

In addition, the present seismic switchgear (1) includes at least one seismic assembly (30).

The at least one seismic assembly 30 is disposed between the base structure 10 and the power distribution box 20 and is configured to elastically support the base structure 10 and the power distribution box 20 .

Figure 2 is a plan view showing an earthquake-proof assembly of a seismic switchgear in which a compression spring and a tension spring are mixed in an embodiment of the present invention, and Figure 3 is an earthquake-resistant assembly of a seismic switchboard in which a compression spring and a tension spring are mixed in the embodiment of the present invention. This is the front view shown.

1 to 3 , the earthquake-resistant assembly 30 includes a first support assembly 31 , a second support assembly 32 , and a first elastic body 33 .

The first support assembly 31 supports the lower surface of the power distribution box 20 , and the second support assembly 32 is supported on the upper surface of the base structure 10 .

In addition, the first elastic body 33 is disposed between the first support assembly 31 and the second support assembly 32 to support the first support assembly 31 and the second support assembly 32 .

4 is a front view illustrating a state in which the first elastic body is disposed between the first and second support assemblies of the earthquake-resistant switchboard in which the compression spring and the tension spring are mixed in the embodiment of the present invention.

1 and 4, the first support assembly 31 is disposed in the center of the first support plate 311 for supporting the lower surface of the power distribution box 20, and the lower surface of the first support plate 311, It may include a first connecting plate 312 in the form of a disk coupled to one end of the first elastic body (33).

For example, the first connection plate 312 may be coupled to a lower surface of the first support plate 311 and one end of the first elastic body 33 through welding.

The second support assembly 32 includes a second support plate 321 supported on the upper surface of the base structure 10 , is disposed at the center of the upper surface of the second support plate 321 , and the other end of the first elastic body 33 . It may include a second connection plate 322 in the form of a disk coupled to.

For example, the second connection plate 322 may be coupled to the upper surface of the second support plate 321 and the other end of the first elastic body 33 through welding.

1, 2, and 4 , the first elastic body 33 is formed in a direction in which the first support assembly 31 and the second support assembly 32 are spaced apart from each other (eg, the outside in the vertical direction) and the first elastic body 33 . It is configured to elastically support the first support assembly 31 and the second support assembly 32 in the circumferential direction of the elastic body 33 .

Accordingly, when the first and second support assemblies 31 and 32 are twisted left and right, the first support assembly 31 and the second support assembly 32 return to their original positions by the elastic force of the first elastic body 33 . can be

For example, the diameter of the first elastic body 33 gradually increases from one end coupled to the first connecting plate 312 along the axial direction toward the other end coupled to the second connecting plate 322 . It may be a coil-type compression spring of a wedge structure.

5 is a front view illustrating a state in which a second elastic body is disposed between the first and second support assemblies of the earthquake-resistant switchboard in which a compression spring and a tension spring are mixed according to an embodiment of the present invention.

2, 3 and 5 , the earthquake-resistant assembly 30 may further include a second elastic body 34 .

A plurality of second elastic bodies 34 may be disposed along the circumference of the first elastic body 33 to support the first support assembly 31 and the second support assembly 32 .

The second elastic body 34 is formed in a direction in which the first support assembly 31 and the second support assembly 32 are adjacent to each other (eg, inward in the vertical direction), and the first support assembly 31 and the second support assembly 32 ( 32) may be configured to elastically support.

That is, the second elastic body 34 holds the first support assembly 31 and the second support assembly 32 in a direction adjacent to each other (eg, inside in the vertical direction) by elastic force, and the first support assembly 31 and the second support assembly 32 are held by the left and right vibrations. When the support assembly 31 and the second support assembly 32 are twisted, an impact may be buffered and restored to their original state.

The second elastic body 34 may include a first countersunk bolt 341 , a first fastening nut 342 , a second countersunk bolt 343 , a second fastening nut 344 , and a tensile elastic member 345 . .

The first plate bolt 341 may pass through the first support plate 311 , a portion may be accommodated and supported by the first support plate 311 , and the other portion may be disposed below the first support plate 311 . have. In this case, a first-first through hole 3111 through which the first plate bolt 341 passes may be formed in the first support plate 311 .

The first fastening nut 342 may be fastened to the first plate bolt 341 and disposed below the first support plate 311 . For example, the first fastening nut 342 may be coupled to the first plate bolt 341 through welding.

The second plate bolt 343 may pass through the second support plate 321 , some may be received and supported by the second support plate 321 , and the other may be disposed above the second support plate 321 . have. In this case, a 2-1 through hole 3211 through which the second plate bolt 343 passes may be formed in the second support plate 321 .

The second fastening nut 344 may be fastened to the second plate bolt 343 and disposed above the second support plate 321 . For example, the second fastening nut 344 may be coupled to the second plate bolt 343 through welding.

Meanwhile, the first fastening nut 342 fastened to the first countersunk bolt 341 is spaced apart from the lower surface of the first support plate 311 , and the second fastening nut 342 fastened to the second countersunk bolt 343 . The nut 344 may be disposed to be spaced apart from the upper surface of the second support plate 321 . Accordingly, a gap C may be formed between the first support plate 311 and the first fastening nut 342 and between the second support plate 321 and the second fastening nut 344 , respectively.

The tensile elastic member 345 may be disposed between the first fastening nut 342 and the second fastening nut 344 . At this time. One end of the tensile elastic member 345 may be coupled to the first fastening nut 342 , and the other end of the tensile elastic member 345 may be coupled to the second fastening nut 344 .

For example, one end of the tensile elastic member 345 is coupled to the first fastening nut 342 by welding, and the other end of the tensile elastic member 345 is coupled to the second fastening nut 344 through welding. can be

The tensile elastic member 345 includes the first fastening nut 342 and the second fastening nut 344 in a direction in which the first support plate 311 and the second support plate 321 are adjacent to each other (eg, outward in the vertical direction). ) can be elastically supported.

For example, the tensile elastic member 345 may be a coil-type tensile spring.

6 is a front view illustrating a state in which a third elastic body is disposed between the first and second support assemblies of the earthquake-resistant switchboard in which a compression spring and a tension spring are mixed according to an embodiment of the present invention.

2, 3 and 6 , the earthquake-resistant assembly 30 may further include a third elastic body 35 .

The third elastic body 35 may be arranged in plurality along the circumference of the first elastic body 33 to support the first support assembly 31 and the second support assembly 32 at positions different from those of the second elastic body 34 . have.

The third elastic body 35 is formed in a direction in which the first support assembly 31 and the second support assembly 32 are spaced apart from each other (eg, outward in the vertical direction), and the first support assembly 31 and the second support assembly 32 are disposed. (32) may be configured to elastically support.

The third elastic body 35 may include a vibration-proof rod 351 , an anti-loosening bolt 352 , an anti-loosening nut 353 , a support nut 354 , and a compression elastic member 355 .

The anti-vibration rod 351 may be disposed between the first support plate 311 and the second support plate 321 to support the first support plate 311 and the second support plate 321 .

The anti-vibration rod 351 may be formed in the form of a tube in which the support jaw 3511 and the receiving hole 3512 are provided.

For example, the anti-vibration rod 351 may be formed of a rubber or urethane material having an elastic force. However, the anti-vibration rod 351 is not necessarily limited to the material thereof, and may be formed of various materials.

The anti-loosening bolt 352 may be coupled by sequentially passing through the second support plate 321 , the anti-vibration rod 351 , and the first support plate 311 . Accordingly, a portion of the anti-loosening bolt 352 may be disposed in the receiving hole 3512 , and another portion of the anti-loosening bolt 352 may be disposed above the first support plate 311 . At this time, the first and second through-holes 3112 through which the anti-loosening bolt 352 passes are formed in the first supporting plate 311 , and the second through-hole 3112 through which the anti-loosening bolt 352 passes is formed in the second supporting plate 321 . A 2-2 through hole 3212 may be formed.

The anti-loosening nut 353 may be fastened to the anti-loosening bolt 352 to be supported on the upper surface of the first support plate 311 .

The support nut 354 may be accommodated in the receiving hole 3512 and supported on the upper surface of the second support plate 321 . Here, a portion of the anti-loosening bolt 352 disposed in the receiving hole 3512 may be accommodated in the support nut 354 .

Here, the diameter D1 of the receiving hole 3512 may be larger than the diameter D2 of the loosening prevention bolt 352 . In addition, the diameter D3 of the 1-2 through-hole 3112 may be larger than the diameter D2 of the loosening preventing bolt 352 and smaller than the outer diameter D4 of the loosening preventing nut 353 . Accordingly, the anti-loosening bolt 352 may flow in response to vibration during vibration or torsion.

The compression elastic member 355 may be accommodated in the receiving hole 3512 and disposed between the support jaw 3511 and the support nut 354 .

Specifically, one end of the compression elastic member 355 accommodated in the receiving hole 3512 may be supported by the support jaw 3511 , and the other end of the compression elastic member 355 may be supported by the support nut 354 .

The compression elastic member 355 elastically supports the anti-vibration rod 351 and the support nut 354 in a direction in which the first support plate 311 and the second support plate 321 are spaced apart from each other (eg, outward in the vertical direction). can do. For example, the compression elastic member 355 may be a coil-type compression spring.

Accordingly, the third elastic body 35 presses the first support plate 311 in a direction in which the first support plate 311 and the second support plate 321 face each other (eg, the inside of the longitudinal direction), and the first Since the support plate 311 and the second support plate 321 are elastically supported, the separation of the first support plate 311 can be prevented when the first support plate 311 and the second support plate 321 are twisted. can

7 is an enlarged view of an enlarged portion "A" of FIG. 1 .

1 and 7 , the seismic assembly 30 includes a first fixing assembly 36 configured to fix the first support assembly 31 to the power distribution box 20 , and a second support assembly 32 . It may further include a second fixing assembly 37 configured to secure to the base structure 10 .

The first fixing assembly 36 may include a first fixing bolt 361 and a first fixing nut 362 .

The first fixing bolt 361 may be coupled through the power distribution box 20 and the first support plate 311 .

The first fixing nut 362 may be fastened to the first fixing bolt 361 to bring the first support plate 311 into close contact with the lower surface of the power distribution box 20 .

The second fixing assembly 37 may include a second fixing bolt 371 and a second fixing nut 372 .

The second fixing bolt 371 may be coupled through the base structure 10 and the second support plate 321 .

The second fixing nut 372 may be fastened to the second fixing bolt 371 to bring the second support plate 321 into close contact with the upper surface of the base structure 10 .

In this case, the first support plate 311 further includes a 1-3 through-hole 3113 through which the first fixing bolt 361 passes, and the second support plate 321 has a second fixing bolt 371 through it. It may further include a 2-3th through-hole 3213 to be penetrated.

As such, according to the embodiment of the present invention, by disposing the earthquake-resistant assembly 30 in which a plurality of elastic bodies acting in different directions are accommodated between the base structure 10 and the power distribution box 20, the cushioning performance and the earthquake-resistant performance are improved. It is maximized, and through this, vibration, torsion, and shock applied to the power distribution box 20 in the vertical and horizontal directions are alleviated to prevent damage and deformation of the power distribution box 20 and various devices accommodated in the power distribution box 20. have.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is common in the technical field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Various modifications are possible by those having the knowledge of, of course, these modifications should not be individually understood from the technical spirit or perspective of the present invention.

1. Seismic switchgear 10. Base structure
20. Distribution box 30. Seismic assembly
31. first support assembly 311. first support plate
3111. 1-1 through hole 3112. 1-2 through hole
3113. Number 1-3 through hole 312. First connection plate
32. Second Support Assembly 321. Second Support Plate
3211. No. 2-1 through hole 3212. No. 2-2 through hole
3213. Second 2-3 through hole 322. Second connecting plate
33. First elastic body 34. Second elastic body
341. First countersunk bolt 342. First fastening nut
343. Second countersunk bolt 344. Second fastening nut
345. Tensile elastic member 35. Third elastic body
351. Anti-vibration rod 3511. Support jaw
3512. Receptacle 352. Anti-loosening bolt
353. Anti-loosening nut 354. Support nut
355. Compression elastic member 36. First fixing assembly
361. First fixing bolt 362. First fixing nut
37. Second fixing assembly 371. Second fixing bolt
372. Second retaining nut C. Clearance
G. ground

Claims (11)

Base structure 10 disposed on the ground (G);
a power distribution box 20 disposed on the base structure 10; and
and at least one seismic-resistant assembly 30 disposed between the base structure 10 and the power distribution box 20 and configured to elastically support the power distribution box 20,
The earthquake-resistant assembly 30,
a first support assembly 31 supporting a lower surface of the power distribution box 20;
a second support assembly 32 supported on the upper surface of the base structure 10; and
a first elastic body (33) disposed between the first support assembly (31) and the second support assembly (32) to support the first support assembly (31) and the second support assembly (32); ,
The first elastic body 33 is formed in a direction in which the first support assembly 31 and the second support assembly 32 are spaced apart from each other and in a circumferential direction of the first elastic body 33, the first support assembly ( 31) and configured to elastically support the second support assembly (32),
The first support assembly 31 comprises:
A first support plate 311 for supporting the lower surface of the power distribution box 20, and
and a first connecting plate 312 in the form of a disk disposed in the center of the lower surface of the first support plate 311 and coupled to one end of the first elastic body 33,
The second support assembly 32 comprises:
A second support plate 321 supported on the upper surface of the base structure 10, and
and a second connecting plate 322 in the form of a disk disposed in the center of the upper surface of the second support plate 321 and coupled to the other end of the first elastic body 33,
The earthquake-resistant assembly 30,
A plurality of second elastic bodies (34) arranged along the circumference of the first elastic body (33) to support the first support assembly (31) and the second support assembly (32) are further included;
The second elastic body 34 is disposed in a direction in which the first and second support assemblies 31 and 32 are adjacent to each other. is configured to elastically support the
The second elastic body 34,
A first plate bolt 341 passing through the first support plate 311, a portion of which is received and supported by the first support plate 311, and the other portion is disposed below the first support plate 311;
a first fastening nut 342 fastened to the first plate bolt 341 and disposed below the first support plate 311;
A second plate bolt 343 that passes through the second support plate 321 and is partially accommodated and supported by the second support plate 321 and the other part is disposed above the second support plate 321;
a second fastening nut 344 fastened to the second plate bolt 343 and disposed above the second support plate 321; and
The first fastening nut is disposed between the first fastening nut 342 and the second fastening nut 344 in a direction in which the first support plate 311 and the second support plate 321 are adjacent to each other ( 342) and a tensile elastic member 345 for elastically supporting the second fastening nut 344,
The first fastening nut 342 is spaced apart from the lower surface of the first support plate 311 , and the second fastening nut 344 is spaced apart from the upper surface of the second support plate 321 . placed,
A gap C is formed between the first support plate 311 and the first fastening nut 342 and between the second support plate 321 and the second fastening nut 344, respectively,
The earthquake-resistant assembly 30,
A third elastic body ( 35) further comprising,
The third elastic body 35 supports the first support assembly 31 and the second support assembly 32 in a direction in which the first support assembly 31 and the second support assembly 32 are spaced apart from each other. It is configured to elastically support,
The third elastic body 35,
It is disposed between the first support plate 311 and the second support plate 321 to support the first support plate 311 and the second support plate 321 and accommodate the support jaws 3511 therein. The tubular anti-vibration rod 351 in which the ball 3512 is provided,
The second support plate 321 , the anti-vibration rod 351 , and the first support plate 311 so that a part is disposed in the receiving hole 3512 and the other part is disposed above the first support plate 311 . ), an anti-loosening bolt (352) passing through it sequentially,
An anti-loosening nut 353 fastened to the anti-loosening bolt 352 and supported on the upper surface of the first support plate 311,
A support nut 354 accommodated in the receiving hole 3512 and supported on the upper surface of the second support plate 321, and
It is received in the receiving hole 3512 and is disposed between the support jaw 3511 and the support nut 354 and the first support plate 311 and the second support plate 321 are spaced apart from each other in the direction It includes a vibration-proof rod 351 and a compression elastic member 355 for elastically supporting the support nut 354,
One end of the compression elastic member 355 accommodated in the receiving hole 3512 is supported by the support jaw 3511 and the other end of the compression elastic member 355 is supported by the support nut 354,
The compression elastic member 355 is an earthquake-resistant switchboard (1) that is a mixture of a compression spring and a tension spring, characterized in that it is a coil-type compression spring.
delete According to claim 1,
The diameter of the first elastic body 33 gradually increases from one end coupled to the first connecting plate 312 along the axial direction toward the other end coupled to the second connecting plate 322. An earthquake-resistant switchgear (1) that has a wedge structure and is a mixture of a compression spring and a tension spring.
delete delete delete delete delete According to claim 1,
The first support plate 311,
a 1-1 through-hole 3111 through which the first plate bolt 341 penetrates and a 1-2 through-hole 3112 through which the loosening prevention bolt 352 penetrates;
The second support plate 321,
a 2-1 through-hole 3211 through which the second plate bolt 343 passes, and a 2-2 through-hole 3212 through which the loosening prevention bolt 352 passes,
The diameter (D1) of the receiving hole (3512) is formed larger than the diameter (D2) of the anti-loosening bolt (352),
A diameter D3 of the 1-2 through-hole 3112 is larger than a diameter D2 of the anti-loosening bolt 352 and smaller than an outer diameter D4 of the anti-loosening nut 353, a compression spring and an earthquake-resistant switchgear (1) in which a tension spring is mixed.
According to claim 1,
The earthquake-resistant assembly 30,
a first fixing assembly (36) configured to fix the first support assembly (31) to the power distribution box (20); and
a second securing assembly (37) configured to secure the second support assembly (32) to the base structure (10);
The first fixing assembly 36 comprises:
A first fixing bolt 361 penetrating through the power distribution box 20 and the first support plate 311, and the first fixing bolt 361 are fastened to the power distribution box 20 and the first support plate 311 Including a first fixing nut 362 in close contact with the lower surface of (20),
The second fixing assembly 37,
A second fixing bolt 371 passing through the base structure 10 and the second supporting plate 321, is fastened to the second fixing bolt 371 to attach the second supporting plate 321 to the base structure A seismic switchgear (1) in which a compression spring and a tension spring are mixed, including a second fixing nut (372) in close contact with the upper surface of (10).
According to claim 1,
The first support plate 311 further includes a 1-3 through-hole 3113 through which the first fixing bolt 361 passes,
The second support plate 321 further includes a 2-3th through-hole 3213 through which the second fixing bolt 371 is penetrated.

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