KR101757831B1 - The earthquake-proof distribution panel including a nonlinear type earthquake-proof spring and a cable supporting apparatus for absorbing vibration - Google Patents

Abstract

The seismic resistant switchboard to which the nonlinear earthquake-proof spring and the vibration-absorbing cable support device according to the present invention is applied has a cutting hole for passing the cable through the switchboard and into the switchboard or for exporting the cable to the outside of the switchboard, And a nonlinear earthquake-resistant spring for preventing transmission of the vibration to the switchboard and preventing the switchboard from being conducted by the vibration transmitted from the ground. When vibration is applied to the switchboard due to an earthquake or an external shock in the state of being mounted on the switchboard, , A cable supporting device for absorbing the vibration transmitted to the cutting hole and preventing the cable inserted in the cutting hole from being tilted or stuck in one direction and moving the position of the cable to the original position when the vibration is extinguished, Apply cable support for In the seismic switchboard, the nonlinear earthquake-proof spring is constituted by four or more buffering means, and the cable supporting device has a three-dimensional shape, which is hollow and through which the first cable passage hole is passed so that the upper surface thereof is opened and the cable is passed therethrough, An outer case; An outer upper cover covering the upper surface of the outer case in a plate form and communicating with the first cable passage hole and passing through the second cable passage hole through which the cable passes; A spring in the form of a coil that is elastically contracted or expanded and restored; a tension spring having one end mounted on the inner peripheral side surface of the outer case and four or more mounted on the inner peripheral side surface of the outer case; A cable supporting moving body which is slid in a state of being mounted in the outer case and whose outer circumferential surface is connected to the other end of the tension spring and which communicates with the first and second cable passing holes, The cable supporting moving body is held and fixed to the outer case so that the cable supporting moving body can not be slid in the outer case. On the other hand, when the vibration is transmitted to the power distribution board, A movable supporting member locking means for releasing the movable supporting member from the outer case and allowing the movable supporting member to slide freely in the outer case, and a bar supporting member fixedly installed in the third cable passing hole as a straight bar, A cable that holds a cable When the switchboard is shaken due to an earthquake or an external shock, the locking of the cable supporting movable body locking means, which has fixed the outer casing and the cable supporting movable body, is released and the cable supporting movable body is slid freely in the outer casing The cable supporting moving body holding the cable slides in the direction opposite to the tilting direction of the switchboard to prevent the cable from being tilted and damaged and the tension spring is inflated or contracted by being guided by the cable supporting moving body to elastically hold the cable supporting moving body, The vibration is transmitted to the switchboard, and when the switchboard is returned to its original position, the cable support moving body is moved to the initial position by the resilient restoring force of the tension spring.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an earthquake-proof distribution panel including a nonlinear earthquake-proof spring and a supporting apparatus for absorbing vibration,

The present invention relates to a seismic switchboard to which a nonlinear earthquake-proof spring and a vibration-absorbing cable support device are applied. More particularly, the present invention relates to a seismic switchboard that minimizes the tension or shrinkage of a cable extending out of the switchboard when the switchboard is shaken by an earthquake or an external shock Nonlinear earthquake springs that can protect the switchboard by buffering the vibration transmitted from the ground to the switchboard as much as possible when the ground is floated due to earthquake or external factors and seismic switchgear .

Generally, the magnitude of the seismic force that affects buildings when an earthquake occurs varies depending on the structural characteristics such as the height, shape, or material of the building, and the earthquake is more likely to occur in high- It can affect.

Fields requiring on-line / real-time processing systems, such as industrial information processing control devices, OA devices and related auxiliary facilities In particular, in fields where utility is high such as electric power, nuclear power, water treatment, aviation, railroad, etc., Is growing even higher.

In this case, the vibrations are transmitted to the enclosure of the telecommunication equipment or the enclosure of the transmission and distribution cabin, and the high-priced equipment installed inside the telecommunication equipment or the switchboard Various devices may be damaged.

17, one part of the cable is fixed in the switchboard and the other part of the cable is pulled out of the switchboard through the cutting hole of the switchboard and then tied to the cable tray outside the switchboard There is a problem that the cable may be damaged as the cable is pulled or shrunk when the switchboard is shaken in a situation where there is a problem that one end of the cable that is electrically coupled to one part of the switchboard may be turned off.

Further, when the switchboard is tilted in one direction, there is a problem that the cable may be tilted or tangled with the switchboard in one direction.

In addition, in the above situation, when the switchboard is shaken to the left and right, the edge of the cutting hole presses the outer circumferential surface of the cable, and the cable sheath may be peeled off. As the wire sheath peels off, Resulting in accidents and short-circuiting accidents.

In addition, the magnitude of the seismic force affecting the building when the earthquake occurs varies depending on the structural characteristics such as the height, shape, or material of the building, and the earthquake has a greater influence on the high- .

In this case, the vibrations are directly transmitted to the enclosure of the telecommunication equipment or the enclosure of the transmission and reception cabinet, so that the high-priced equipment installed inside the telecommunication equipments and the switchgear Various devices may be damaged.

However, the conventional switchboard structure has a problem that it is very vulnerable to an earthquake because it is a dust-proof structure separating a vibration source and a telecommunication equipment or a switchboard by attaching a spring or a rubber pad under a telecommunication equipment or a switchboard for vibration isolation.

On the other hand, as a prior art of the present invention, a "method of constructing an electrical switchboard" of the patent registration number "10-0655135" includes a main breaker for a main wiring and a circuit breaker, The method includes the steps of fixing an electric switchboard box having a front surface portion and an engagement hole formed in both side surfaces and a bottom surface portion to a formwork, The electric switchboard box and the spring case are embedded in the concrete, and the spring is connected to the spring case through the respective engagement holes, and the electrical switchboard Is placed in an electrical switchboard box, The damper is slidably moved to a damper case fixed to an electric switchboard, an oil and a damper case accommodated in the damper case, A piston having a hole through which oil passes, and a piston rod having one end connected to the piston and the other end contacting the spring.

Korea Patent Registration No. 10-0655135 (2006.12.08) Korea Patent Registration No. 10-1081571 (2011.11.08) Korea Patent Registration No. 10-1418247 (2014.07.10) Korea Patent Registration No. 10-1620065 (2016.05.11) Korea Patent Registration No. 10-1633921 (Jul.

In order to solve the above problems, the present invention has been made in view of the above circumstances in which one part of the cable is fixed in the switchboard, the other part of the cable is pulled out of the switchboard through the cutting hole of the switchboard, It provides a seismic switchboard with a nonlinear seismic spring and a vibration-absorbing cable support device that can minimize cable damage by minimizing the cable's tensile width and shrinkage width when the switchboard is shaken when tied to a cable tray outside the switchboard SUMMARY OF THE INVENTION

It is another object of the present invention to provide a nonlinear device capable of suppressing damages to the switchgear and the devices inside the switchgear by buffering the vertical vibration caused by an earthquake or an external factor or the left and right horizontal vibration or the diagonal vibration, And an earthquake-resistant switchboard to which an earthquake-proof spring and a vibration-absorbing cable support device are applied.

It is still another object of the present invention to provide a non-linear earthquake-proof spring capable of preventing the switchboard from being tilted to one side due to an earthquake and an earthquake-resistant switchboard using the vibration-absorbing cable support apparatus.

It is a further object of the present invention to provide a cable supporting moving body which is fixed to an outer case by holding and holding a cable supporting moving body in a normal state where vibration is not transmitted to an electric distribution board, And a seismic switchboard using the non-linear earthquake-resistant spring and the vibration-absorbing cable support device are provided.

Another object of the present invention is to prevent the door of the switchgear from being opened when vibration is transmitted to the switchgear or current is supplied to the switchgear, while there is no vibration transmitted to the switchgear or current supplied to the switchgear is blocked In which a non-linear earthquake-resistant spring for unlocking a switchboard door and a vibration-absorbing cable support device are applied.

In order to achieve the above object, an anti-earthquake-resistant switchboard to which the nonlinear earthquake-proof spring and the vibration-absorbing cable support device according to the present invention is applied includes a cutting hole for passing a cable through the switchboard and into a switchboard, And a nonlinear earthquake-proof spring for preventing the vibration transmitted from the ground from being transmitted to the switchboard and preventing the switchboard from being conducted by the vibration transmitted from the ground. In the state where the switchboard is mounted on the switchboard, And a cable support device for absorbing vibration transmitted by the cable when the vibration is applied and for preventing the cable inserted in the cutting hole from being tilted or stuck in one direction and moving the position of the cable to the original position when the vibration is extinguished Nonlinear seismic spring and vibration absorption In the seismic switchboard to which the cable supporting device is applied, the nonlinear earthquake-proof spring is constituted by four or more buffering means, and the cable supporting device has a hollow shape and the upper surface thereof is open and the first cable passing hole is penetrated An outer case mounted inside the switchboard; An outer upper cover covering the upper surface of the outer case in a plate form and communicating with the first cable passage hole and passing through the second cable passage hole through which the cable passes; A spring in the form of a coil that is elastically contracted or expanded and restored; a tension spring having one end mounted on the inner peripheral side surface of the outer case and four or more mounted on the inner peripheral side surface of the outer case; A cable supporting moving body which is slid in a state of being mounted in the outer case and whose outer circumferential surface is connected to the other end of the tension spring and which communicates with the first and second cable passing holes, The cable supporting moving body is held and fixed to the outer case so that the cable supporting moving body can not be slid in the outer case. On the other hand, when the vibration is transmitted to the power distribution board, A movable supporting member locking means for releasing the movable supporting member from the outer case and allowing the movable supporting member to slide freely in the outer case, and a bar supporting member fixedly installed in the third cable passing hole as a straight bar, A cable that holds a cable When the switchboard is shaken due to an earthquake or an external shock, the locking of the cable supporting movable body locking means, which has fixed the outer casing and the cable supporting movable body, is released and the cable supporting movable body is slid freely in the outer casing The cable supporting moving body holding the cable slides in the direction opposite to the tilting direction of the switchboard to prevent the cable from being tilted and damaged and the tension spring is inflated or contracted by the cable supporting moving body to elastically hold the cable supporting moving body, The vibration is transmitted to the switchboard, and when the switchboard is returned to its original position, the cable support moving body is moved to the initial position by the resilient restoring force of the tension spring.

In the seismic isolation panel using the nonlinear earthquake-proof spring and the vibration-absorbing cable support device according to the present invention constructed as described above, when the switchboard is tilted in either direction due to an earthquake or an external impact, And the tension spring elastically catches the cable supporting moving body to buffer vibrations transmitted by the cable while preventing the cable from leaning in a direction in which the switchboard is tilted.

Further, when the vibration applied to the switchboard is lost, the cable supporting movable body is slid to the original position by the elastic restoring force of the tension spring, thereby returning the cable position to the original position.

In addition, when the ground vibrates in the vertical direction due to an earthquake or an external factor, the center spring firstly alleviates the impact, and the flexible bar made of urethane material secondarily absorbs the impact.

In addition, the annular grooves and the through-holes processed in the flexible bar have more excellent impact resistance than those of a general flat cylindrical bar when the flexible bar is stretched in the vertical direction or horizontally or diagonally.

In addition, the outer spring provided in the buffer means can prevent the switchboard from leaning in one direction when the switchboard is shaken horizontally or diagonally, and can quickly restore the switchboard which is tilted in one direction to its original position .

Accordingly, in the seismic isolation panel to which the nonlinear vibration-proof spring and the vibration-absorbing cable support device according to the present invention are applied, one part of the cable is fixed in the switchboard, and the other part of the cable is connected to the outside of the switchboard through a cutting hole of the switchboard And when the cable exiting the switchboard is tied to the cable tray outside the switchboard and the switchboard is shaken up, down, front, back, left, and right, the cable will be pulled or shrunk to a minimum, Can be suppressed to the maximum, and it is possible to prevent the cable from being tilted or scratched in either direction.

In addition, it is possible to prevent damages to the switchboard and the devices inside the switchboard by buffering up-and-down vibration transmitted to the switchboard due to earthquake or external factors, horizontal oscillation in left and right direction, or diagonal vibration.

Further, the present invention can prevent the switchboard from being tilted to one side due to an earthquake.

1 is a conceptual diagram of the present invention,
2 is a view showing a cable supporting device mounted on an upper part of a switchboard,
3 is an exploded view of a cable support device,
4 and 5 are exploded perspective views of the cable supporting device,
6 is an exploded perspective view of the cable supporting moving body,
7 is a longitudinal sectional view of the moving device,
8 is a top view of the cable support device with the outer top cover removed,
9 is a longitudinal sectional view of the cable supporting device,
10 is a view showing a bus duct mounted on a cable supporting movable body,
11 is an exploded perspective view of the cable supporting device and the bus duct,
12 is a vertical cross-sectional view of the cable supporting device and the bus duct integrally combined,
13A and 13B are diagrams showing the state of the cable supporting moving body and the tension spring when the switchboard is tilted forward due to an earthquake or an external impact,
14A and 14B are diagrams showing the state of the cable supporting moving body and the tension spring when the switchboard is inclined rearward due to an earthquake or an external impact,
15A and 15B are diagrams showing the state of the cable supporting moving body and the tension spring when the switchboard is tilted to the left by an earthquake or an external shock,
16A and 16B are diagrams showing the state of the cable supporting moving body and the tension spring when the switchboard is tilted to the right by an earthquake or an external impact,
FIG. 17 is a view for explaining that when a conventional switchboard is shaken by an earthquake or an external shock, a cable installed in a conventional switchboard is pulled or contracted, thereby causing cable damage.
18 is a view showing the means for locking the door of the switchboard,
19 is a view showing the means for locking the door of the switchboard and the cable supporting mobile body locking means,
20 is a control circuit diagram of the switchboard door locking means and the cable supporting mobile body locking means,
21 is a view showing a buffer means provided under the switchboard,
22 is an assembled perspective view of the buffer means,
23 is an exploded perspective view of the buffer means,
24 is a perspective view of an upper base and a lower base,
25 is a perspective view of a rubber ring and a flexible bar,
26 is a longitudinal sectional view of a flexible bar in which a rubber ring is fitted in an annular groove,
27 is a perspective view of the upper plate,
28 is a perspective view of a bottom plate,
29 is a perspective view of an outer spring,
30 is an exploded perspective view of the outer spring,
31 shows a state in which four outer springs are installed,
32 is a state in which six outer springs are installed.
33A is a longitudinal sectional view of the present invention,
FIG. 33B is a view showing the state of the flexible bar and the center spring and the outer spring when the paper is shaken in the left and right horizontal directions,
FIG. 33c shows the state of the flexible bar and the center spring and the outer spring when the paper surface is shaken in the diagonal direction; FIG.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

As shown in Figs. 1 to 4, an anti-vibration switchboard to which a nonlinear earthquake-proof spring and a vibration-absorbing cable support apparatus according to the present invention are applied is designed so that the cable 3 is inserted into the switchboard 1 through the switchboard 1 And a cutting hole 5 for cutting the cable 3 out of the switchboard 1 so as to prevent the vibration transmitted from the ground from being transmitted to the switchboard 1, 1) is prevented from being conducted, and when the switchboard (1) is subjected to vibration due to an earthquake or an external shock in a state of being mounted on the switchboard (1), vibration transmitted to the cable To move the cable (3) to the original position when the vibration is lost and to prevent the cable (3) sandwiched in the cutting hole (5) from being tilted or matted in any one direction, (8), wherein the non-linear vibration-proof spring is constituted by four or more buffering means (85), and the cable supporting device (7) is hollow An outer case 11 mounted in the interior of the switchboard 1 through which the first cable passage hole 9 passes so that the upper surface thereof is opened and the cable 3 is passed therethrough; And a second cable through hole 13 through which the cable 3 is passed while being covered with the open upper surface of the outer case 11 and communicating with the first cable through hole 9, (15); A spring having a coil spring which is elastically contracted or expanded and restored and which has one end mounted on the inner circumferential surface of the outer case 11 and four or more mounted on the inner circumferential surface of the outer circumferential surface of the outer case 11 ); The cable 3 is slid in a state of being mounted in the outer case 11 and the outer circumferential surface thereof is connected to the other end of the tension spring 17 and communicated with the first and second cable passage holes 9 and 13, A cable supporting and moving body 21 through which a third cable passing hole 19 is passed and a cable supporting and moving body 21 normally held and secured to the outer case 11 when no vibration is transmitted to the switchboard 1 The cable supporting and moving body 21 is prevented from sliding inside the outer case 11. On the other hand, when vibration is transmitted to the switchboard 1, the cable supporting and moving body 21 is released from the outer case 11, A cable supporting movable body locking means 131 for allowing the supporting movable body 21 to slide freely within the outer case 11 and a cable supporting movable body locking means 131 fixedly installed in the third cable passing hole 19 as a straight bar, 3 k And the cable support rod 23 to which the cable 3 passing through the through hole 19 is connected and fixed to the outer case 11 and the cable support moving body 21 when the switchboard 1 is shaken by an earthquake or an external impact The cable supporting moving body 21 is slid freely inside the outer casing 11 and the cable supporting moving body 21 holding the cable 3 is released while the locking operation of the cable supporting moving body locking means 131, Is slid in the direction opposite to the tilting direction of the switchboard 1 to prevent the cable 3 from being tilted or damaged and the tension spring 17 is expanded or contracted by being guided by the cable supporting movable body 21, And absorbs the vibration transmitted to the cable 3 so that the vibration transmitted to the switchboard 1 disappears and the elasticity restoration of the tension spring 17 occurs when the switchboard 1 is returned to its original position The cable supporting movable body 21 is placed in the open position by the force, thereby returning the cable 3 to the initial position.

As shown in FIGS. 4 and 5, the outer case 11 is formed in a rectangular parallelepiped shape having an opened upper face, and has a translator-type bolt fixing piece 25 bent at the four corners on both upper and opposite sides of the outer case 11 in the form of a translator And the outer upper cover 15 is bolted to the regulator bolt fixing piece 25. As shown in FIG.

An upper bolt assembly hole 27 is passed through the outer upper cover 15.

Further, side bolt assembly holes 29 are formed on both side walls of the outer case 11 facing each other so as to be bolted to the inside of the power distribution board 1.

As shown in FIG. 6, the cable supporting and moving body 21 includes a cable supporting movable body upper plate 31 having a plate-shaped third cable passage hole 19 penetrating therethrough, A cable supporting movable body lower plate 33, which is disposed parallel to the cable supporting movable body upper plate 31 with a predetermined height interval therebetween and through which the third cable passing hole 19 passes, 3 cable through hole 19 and the upper end thereof is in contact with the edge of the third cable passage hole 19 formed in the cable supporting moving body upper plate 31, An intermediate connecting piece 35 to which the other end of the tension spring 17 is connected to the circumferential surface, an upper ballhole 37 penetrating the four corners of the cable supporting moving body upper plate 31, Facing cable And a pair of upper and lower ball rollers 41 and 43 are coupled to each other in a vertically symmetrical structure inside the housing 51 and a pair of upper and lower ball rollers 41 and 43, The ball of the ball roller 41 is inserted into the upper ball hole 37 and the ball of the lower ball roller 43 disposed at the lower side is fitted into the lower ball hole 39. The upper surface of the housing 51 is connected to the upper surface of the cable supporting moving body upper plate 31 And the bottom of the housing 51 is fixed to the cable supporting movable lower plate 33 and the ball of the upper ball roller 41 is in contact with the bottom of the outer upper cover 15, 43) are in contact with the inner upper surface of the outer case (11).

As shown in FIG. 5, four or more protrusions are protruded in the outer direction of the intermediate connecting piece 35 and are connected to the other end of the tension spring 17 in a one-to-one ratio on the side surface of the intermediate connecting piece 35 And the other spring fixed connection piece 48 can be additionally mounted.

The spring-receiving hole 50 is passed through the other-side spring-fixing connecting piece 48 so that the hooking hook formed at the other end of the tension spring 17 is inserted.

As shown in FIG. 5, the inner side wall of the outer case 11 is provided with four or more one-side spring fixing connecting pieces 47 protruding in the direction of the cable supporting moving body 21, One end of the tension spring 17 is fixed at a ratio of 1: 1.

At this time, the spring-insertion hole 50 is passed through the one-side spring fixing connecting piece 47 so that the hook formed on one end of the tension spring 17 is inserted.

As shown in FIG. 5, the other-side spring fixing connecting piece 48 includes a first one-side spring fixing connecting piece 48a protruding from the left side of the intermediate connecting piece 35 in the left direction of the intermediate connecting piece 35, A second one-side spring fixing connecting piece 48b protruding from the right side surface of the intermediate connecting piece 35 toward the right side of the intermediate connecting piece 35, A fourth fourth spring fixed connection piece 48d protruding forward from the front surface of the intermediate connection piece 35 from the front surface of the intermediate connection piece 35 and spaced apart from the third other spring fixed connection piece 48c by a predetermined width, A fifth fifth spring fixed connection piece 48e protruding rearward from the rear surface of the intermediate connecting piece 35 from the rear surface of the intermediate connecting piece 35, connect Claim 6 is composed of the other spring fixing the connecting piece (48f) (48e) and away from a predetermined width interval.

As shown in FIG. 5, the one-side spring fixing linking piece 47 includes a first spring fixed connecting piece 48a protruding in the direction of the cable supporting moving body 21 from the inner left side of the outer case 11 facing the first other- A first one-side spring fixed connection piece 47a and a second one-side spring fixed connection piece 47 protruded from the inner right side surface of the outer case 11 facing the second other-side spring fixed connection piece 48b in the direction of the cable supporting / A third one-side spring fixing connecting piece 47c protruding from the inner front surface of the outer case 11 facing the third other-side spring fixing connecting piece 48c toward the cable supporting movable body 21, The spring fixing connecting piece 48d is provided with a second spring fixed connecting piece 47c protruding from the inner front surface of the outer case 11 facing the spring supporting connecting piece 48d in the direction of the cable supporting moving body 21, A fifth spring fixed connection piece 47e protruding from the inner rear surface of the outer case 11 facing the fifth spring fixed connection piece 48e toward the cable supporting movable body 21, And the sixth one side spring fixing connecting piece 47e protruding from the inner rear surface of the outer case 11 facing the sixth side spring fixing connecting piece 48f in the direction of the cable supporting moving body 21 and spaced apart from the fifth one- And a spring fixed connection piece 47f.

5, the tension spring 17 includes a first tension spring 17a having both side ends connected to the first other-side spring fixed connection piece 48a and the first-side spring fixed connection piece 47a, A second tension spring 17b connected to the second other-side spring fixed connection piece 48b and the second-side spring fixed connection piece 47b, both-side end fixed to the third one-side spring fixed connection piece 48c and the third one- A third tension spring 17c connected to the connection piece 47c, a fourth tension spring 17d connected to the fourth other-side spring fixed connection piece 48d and the fourth one-side spring fixed connection piece 47d, A fifth tension spring 17e connected to the fifth other-side spring fixed connection piece 48e and the fifth one-side spring fixed connection piece 47e, and a fifth tension spring 17e connected to the fifth one-side spring fixed connection piece 48f, And a sixth tension spring 17f connected to the connecting piece 47f.

The width interval between the third one-side spring fixing connection piece 48c and the fourth other-side spring fixing connection piece 48d is narrower than the width interval between the third one-side spring fixing connection piece 47c and the fourth one-way spring fixing connection piece 47d The third tension spring 17c and the fourth tension spring 17d are mounted diagonally as shown in Fig.

The width interval between the fifth one-side spring fixing connecting piece 48e and the sixth one-side spring fixing connecting piece 48f is equal to the width interval between the fifth one-side spring fixing piece 47e and the sixth one- The fifth tension spring 17e and the sixth tension spring 17f are mounted in a diagonal direction as shown in Fig.

7, a ball roller mounting hole 49 is passed through the center of the housing 51, and the ball roller mounting hole 49 is formed with an upper ball roller 41, The ball provided in the upper ball roller 41 faces the upper ball hole 37 and the ball provided in the lower ball roller 43 is guided to the lower ball hole 39, A buffer member 53 for absorbing vibration is sandwiched between the upper ball roller 41 and the lower ball roller 43. As shown in Fig.

The buffer member 53 absorbs vibration in the up, down, left, and right directions and vibration in the diagonal direction applied to the moving device 45 so that the moving device 45 can be freely moved.

As shown in FIG. 6, four or more upper moving device fixing holes 55 are formed in a predetermined radius around the upper ballhole 37 through a cable supporting moving body upper plate 31 located outside the upper ballhole 37, And four or more lower moving device fixing holes 57 penetrate through the cable supporting lower movable plate 33 located outside the lower ballhole 39 in a predetermined radius around the lower ballhole 39.

7, a housing upper fixing hole 59 is formed at an upper end of the housing 51 outside the ball roller mounting hole 49 so as to face the upper moving device fixing hole 55, A lower housing fixing hole 61 is formed at the lower end of the housing 51 outside the ball roller mounting hole 49 so as to face the lower moving device fixing hole 57.

A bolt tap is formed on the inner circumferential surfaces of the housing upper fixing hole 59 and the lower housing fixing hole 61.

The cable supporting and moving device upper plate 31 and the moving device 45 are fixed by a bolt fastened to the upper moving device fixing hole 55 and the upper housing fixing hole 59, (45) is fixed by a bolt fastened to the lower moving device fixing hole (57) and the lower housing fixing hole (61).

8 is a plan view of the cable supporting device 7 from which the outer upper cover 15 is removed, and Fig. 9 is a longitudinal sectional view of the cable supporting device 7. Fig.

When the booth duct 65 with the bus bar 63 is coupled to the cable support device 7 as shown in Figs. 10 to 12, the tip of the booth duct 65 is connected to the cable support moving body 21 and the bus bar 63 can be coupled with the electrical apparatus of the switchboard 1 through the third cable passage hole 19. [

The operation of the anti-seismic switchboard using the nonlinear seismic spring according to the present invention and the vibration-absorbing cable support apparatus will be described with reference to FIGS. 13A to 16B.

First, when the switchboard 1 is tilted forward, the cable supporting and moving body 21 is guided by the cable 3 bound to the cable supporting and moving body 21 and the rear of the switchboard 1, as shown in Figs. 13A and 13B The tension spring 17 disposed in front of the cable supporting device 7 is expanded and the tension spring 17 disposed at the rear of the cable supporting device 7 is contracted.

On the other hand, when the switchboard 1 is tilted rearward, the cable supporting and moving body 21 is guided by the cable 3 bound to the cable supporting and moving body 21, as shown in Figs. 14A and 14B, The tension spring 17 arranged in front of the cable supporting device 7 is contracted and the tension spring 17 arranged at the rear of the cable supporting device 7 is expanded.

When the switchboard 1 is tilted to the left, as shown in Figs. 15A and 15B, the cable supporting and moving body 21 is slid to the right of the switchboard 1 while being drawn by the cable 3, The tension spring 17 disposed on the left side of the cable supporting device 7 is expanded and the tension spring 17 disposed on the right side of the cable supporting device 7 is contracted.

On the other hand, when the switchboard 1 is tilted to the right, as shown in Figs. 16A and 16B, the cable supporting and moving body 21 is slid to the left side of the switchboard 1 by the cable 3, ) Is expanded and the tension spring 17 disposed on the left side of the cable supporting device 7 is contracted.

Therefore, the present invention is characterized in that, as shown in Figs. 13a to 16b, when the cable supporting mobile body 21 to which the cable 3 is bound when the distribution board 1 is tilted to one side is opposite to the tilting of the distribution board 1 It is possible to minimize the tensile width or the shrink width of the cable 3 so as to suppress the damage of the cable and to prevent the tension spring 17 from flexibly holding the cable supporting mobile body 21 in a resilient manner, The damage of the cable 3 due to the vibration can be suppressed.

Further, as shown in FIG. 19, the movable bar passage hole 129 is formed in the outer case 11 and the cable supporting movable body 21.

As shown in FIGS. 18 to 20, the cable supporting and moving member locking means 131 is mounted on the bottom surface of the outer case 11, and when the first movable bar 133 is not supplied with electric current, And the movable bar passing hole 129 formed in the cable supporting and moving body 21 to prevent the cable supporting and moving body 21 from sliding inside the outer case 11. On the other hand, The movable bar 133 is pulled in the lower direction of the outer case 11 to pull out the first movable bar 133 fitted in the movable bar passage hole 129 from the movable bar passage hole 129, A first solenoid 135 for allowing the first solenoid 135 to slide freely in the outer case 11 and a second solenoid 135 for supplying current to the relay coil 137 when the vibration is sensed in a state of being mounted inside the switchboard 1, 137) a-contact switch Contact switch 139 of the relay 137 when the vibration is not sensed while the current supplied to the first solenoid 135 is closed by closing the contact 139 of the relay 137. On the other hand, And an input terminal connected to the power supply unit 143 when the current is supplied from the vibration sensing unit 141. The power supply unit 143 is connected to the first solenoid 135, When the current is not supplied from the vibration sensing means 141, the input terminal opens the a contact switch 139 connected to the power supply 143, and the contact switch 139 is closed to supply the current to the first solenoid 135. On the other hand, And a relay 137 that cuts off current supply to the first solenoid 135. When vibration is transmitted to the switchboard 1, the first movable bar 133 comes out of the movable bar hole 129, 21 are attached to the outer case 11, The first movable bar 133 is inserted into the movable bar hole 129 so that the cable supporting movable body 21 can be slid in the outer case 11 when the vibration transmitted to the switchboard 1 disappears. Respectively.

18 to 20, when the circuit breaker is switched on, current is supplied to the inside of the switchboard 1, and the vibration is transmitted to the switchboard 1, the switchboard door 145 Door is opened so that the current supplied to the inside of the switchboard 1 is cut off and the vibration is not transmitted to the switchboard 1 while the breaker is turned off so that the switchboard door 145 145 to unlock the switchgear door 145 and to open the switchgear door 145.

As shown in FIGS. 18 to 20, the switchboard door locking means 147 includes a door lock bracket 151 mounted on a doorway of the switchboard 1 as a plate and having a latch hole 149 through the body, A bar shaped bar is mounted on the switchgear panel door 145 and slid in the direction of the door lock bracket 151 so that one end is fitted in the latch hole 149 to prevent the switchboard door 145 from being opened, A latch 153 for allowing one end of the latch bracket 151 to be inserted into the latch passage hole 149 to slide out from the latch passage hole 149 to open the switchboard door 145 when the latch bracket 151 is slid in the opposite direction to the lock bracket 151, A manual lever 155 installed on the outer peripheral surface of the cabinet 153 in the vertical direction of the latch 153, a latching recess 157 recessed on the outer circumferential surface of the latch 153, When the current is supplied in the state of being engaged, The second movable bar 158 that is fitted in the first movable bar 158 is pulled out of the engaging groove 157 so that the latch 153 is moved in one direction while one end of the second movable bar 158 is hooked when no current is supplied A second solenoid 159 inserted in the groove 157 to prevent the latch 153 from escaping from the latch through hole 149, a second solenoid 159 connected in series with the second solenoid 159 and connected to the second solenoid 159 A door lock release switch 161 for supplying or blocking a current to the switchboard 1 when the breaker is turned off and no current is supplied to the switchboard 1 and vibration is not transmitted to the switchboard 1; An indicator 163 indicative of safety even when the door lock release switch 145 is opened, a switch 160 connected in series with the door lock release switch 161 and being turned off when the current supplied to the switchboard 1 is cut off, Is automatically closed while the breaker A breaker b contact switch 165 for automatically opening the switch when current is supplied to the switchboard 1 and an input terminal connected to the power supply 143 for receiving the current and the breaker b contact switch 165 The switch is opened when a current flows from the vibration sensing means 141 that senses vibration to the coil of the relay 137 while the switch is opened from the vibration sensing means 141 that does not sense the vibration to the coil 137 of the relay 137, And a relay b contact switch 167 for closing the switch when no current flows into the switch board 167. When the breaker is switched on and current is supplied to the switchboard and vibration is transmitted to the switchboard 1, 167 and the breaker b contact switch 165 are automatically opened to interrupt the current supplied to the second solenoid 159 and one end of the second movable bar 158 is caught by the latching groove 157, Once The switchboard door 145 is not opened and the breaker is switched off so that the current supplied to the inside of the switchboard 1 is cut off and the vibration is transmitted to the switchboard 1 The relay b contact switch 167 and the breaker b contact switch 165 are automatically closed and the door lock release switch 161 is closed so that the second solenoid 159 is supplied with current and the second movable bar 158 is closed, The one end of the latch 153 is pulled out from the latching hole 149 and the switchgear door 145 is pushed out by pushing the manual lever 155 in the opposite direction to the door lock bracket 151. [ Is opened.

21, an upper base 71 fixed to the bottom surface of the power distribution board 1 as a frame having a shape of '?' A lower base 73 is provided as a frame disposed at a lower portion of the upper base 71 and spaced apart from the upper base 71 by a predetermined height and abutted to the ground.

22, the buffering means 85 supports the upper base 71, which is sandwiched between the upper and lower bases 71, 73 and is integrally coupled to the switchboard 1, An upper plate 75 fixed to the bottom surface of the base 71 and a lower plate 77 fixed to the upper surface of the lower base 73 in the form of a plate, A flexible bar 79 fixedly installed on the upper portion of the upper plate 75 and made of a flexible material, and a coil-shaped elastic member penetrated by the flexible bar 79 and having an upper end abutting the lower surface of the upper plate 75, And a central spring 81 elastically contracted or expanded or resiliently restored in contact with the upper surface of the lower plate 77.

As shown in FIG. 22, the buffering means 85 is a coil-shaped spring, and three or more springs are disposed on the outer periphery of the center spring 81, the upper end thereof is fixed to the upper plate 75, And an outer spring 83 which is elastically contracted or expanded or resiliently restored in a state of being fixed to the center spring 81. The center spring 81 is configured such that when the ground is vertically vibrated by an earthquake or an external factor, And the flexible bar 79 absorbs impacts in a secondary direction. When the ground surface is shaken in the left or right or diagonal direction, the flexible bar 79 and the center spring 81 flexibly bend, and at the same time, 83 elastically grip the upper plate 75 integrally coupled to the power distribution board 1 to buffer vibrations transmitted to the power distribution board 1 and to prevent the power distribution board 1 from being tilted in one direction.

As shown in FIG. 24, the upper base 71 and the lower base 73 include a pair of pipes 87a and 87b which are laid side by side in a lateral direction with a predetermined width interval therebetween, And a pair of C-shaped pipes 89a and 89b fixedly coupled to the left and right ends of the pipes 87a and 87b in a state of being laid side by side on the left and right sides of the pipes 87a and 87b .

The upper end of the buffering means 85 is fixedly coupled to the ceiling of the C-shaped pipes 89a and 89b of the upper base 71. [

As shown in FIG. 22, three or more upper base fixing bolt holes 91 are passed through the upper plate 75 to fix the upper plate 75 to the upper base 71 by bolts.

In addition, three or more lower base fixing bolt holes 93 are passed through the lower plate 77 to fix the lower plate 77 to the lower base 73 by bolts.

The flexible bar 79 is made of a urethane material.

As shown in FIG. 23, two or more ring-shaped annular grooves 95 are machined on the outer circumferential surface of the flexible bar 79. The ring-shaped groove 95 is provided with a flexible bar 79 of the flexible bar 79 are inserted into the flexible bar 79 to increase the impact relaxation characteristics and stability of the flexible bar 79 when an impact is transmitted to the switchboard 1 due to an earthquake or an external factor.

As shown in FIG. 26, at the center of the flexible bar 79, a through hole 99 penetrating the flexible bar 79 in the up-and-down direction in order to increase the impact relaxation property and the restitution property of the flexible bar 79, A bolt tap is formed on the upper inner circumferential surface of the through hole 99 and the lower inner circumferential surface of the through hole 99 and the upper plate 75 is inserted into the through hole 99 And the lower plate 77 is bolted to the lower end of the through hole 99. [

The through hole 99 and the annular groove 95 formed in the flexible bar 79 are bent in the vertical direction or in the horizontal or diagonal direction when the flexible bar 79 is pulled in the horizontal or diagonal direction. ) Is superior in shock-absorbing ability and resilience.

As shown in FIG. 23, on the bottom surface of the upper plate 75, there is provided a downward-directed hinge 103 protruding downward and abutting against the upper surface of the flexible bar 79. On the upper surface of the lower plate 77, As shown in FIG. 27, the upper portion of the upper plate 75 and the lower portion of the lower portion 103 are provided with an upwardly projecting portion 105 projecting upwardly and abutting against the lower surface of the flexible bar 79, Similarly, the upper bolt hole 107 is penetrated so that the bolt is inserted.

The upper bolt hole 107 has an upper inner circumferential surface formed with a stepped upper end 109 to which a bolt head is placed so that the bolt inserted into the upper bolt hole 107 is inserted into the upper end of the flexible bar 79 And a lower bolt hole 111 is inserted through the center of the lower plate 77 and the upwardly directed hinge 105 so that the bolt is inserted into the center of the upper plate as shown in FIG.

A lower end of the lower bolt hole 111 is formed in a lower inner circumferential surface of the lower bolt hole 111 so that the head of the bolt is in contact with the lower bolt hole 111. The bolt inserted into the lower bolt hole 111 is engaged with the lower center of the flexible bar 79 do.

The downward tilt 103 is fitted into the upper opening of the central spring 81 and the upward tilting 105 is fitted in the lower end opening of the center spring 81 as shown in FIG.

The area of the upper plate 75 is smaller than the area of the lower plate 77.

27, the lower surface of the upper plate 75 protrudes from the lower surface of the upper plate 75 in the lower direction of the upper plate 75, and three or more protrusions 28, an upper ring fixing bracket 113 is disposed in a circular shape and through which an upper ring fixing hole 112 is passed. On the upper surface of the lower plate 77, And a lower ring fixing bracket 119 protruding upward in the direction of the upper surface of the upper plate 77 and circularly arranged around the center of the lower plate 77 and having a lower ring fixing hole 117 penetrated through the lower plate 77.

As shown in FIGS. 29 and 30, the outer spring 83 has a gradually decreasing outer diameter toward the upper and lower portions of the outer spring 83, and the outer spring 83 has an outer diameter smaller than that of the outer spring 83 And a pair of balls 123a and 123b (Ball) that are inserted into the inner lower portion of the inner upper portion and the inner lower portion of the outer spring 83. One of the balls 123a and 123b is formed into a hook shape, is fitted into the upper ring fixing hole 112, An upper ring 125 integrally coupled with the balls 123a and 123b fitted in the outer spring 83 through an upper opening of the outer spring 83 and a lower ring 125 formed in a shape of a hook, And a lower ring 127 integrally coupled with the balls 123a and 123b which are fitted in the ring fixing holes 117 and whose opposite ends are inserted into the outer spring 83 through the lower end opening of the outer spring 83. [

The upper and lower rings 125 and 127 can be freely rotated through the balls 123a and 123b while being connected to the outer spring 83. As a result, The upper and lower loops 125 and 127 can be prevented from falling off and the upper and lower loops 125 and 127 coupled to the upper and lower loop fixing brackets 113 and 119 can not be loosened.

One of the lower ring fixing brackets 119 and one of the upper ring fixing brackets 113 are opposed to each other in a diagonal direction so that the upper end of one of the outer ring springs 83 is fixed to any one of the upper ring fixing brackets 113 And the lower end of the one outer spring 83 is fixed to one of the lower ring fixing brackets 119, the outer spring 83 is moved in the diagonal direction between the upper plate 75 and the lower plate 77 .

As shown in FIG. 31, the upper ring fixing bracket 113 includes three first upper ring fixing brackets 115a, a second upper ring fixing bracket 115b, and a third upper ring fixing bracket 115c ).

As shown in FIG. 32, the lower ring fixing bracket 119 includes three first lower ring fixing brackets 121a, a second lower ring fixing bracket 121b, and a third lower ring fixing bracket 121b. (121c).

31, the outer spring 83 is fixed to the first upper ring fixing bracket 115a and the lower end is fixed to the first lower ring fixing bracket 121a A second outer spring 83b whose upper end is fixed to the first upper ring fixing bracket 115a and whose lower end is fixed to the second lower ring fixing bracket 121b, A third outer spring 83c fixed to the second upper ring fixing bracket 115b and having a lower end fixed to the third lower ring fixing bracket 121c and an upper end fixed to the third upper ring fixing bracket 115c, And a fourth outer spring 83d fixed to the third lower ring fixing bracket 121c.

In addition, the outer spring 83 may be configured as six as in the third embodiment shown in FIG. 32, and the upper end is fixed to the first upper ring fixing bracket 115a and the lower end is fixed to the first lower ring fixing bracket 115a. A sixth outer spring 83f whose upper end is fixed to the second upper ring fixing bracket 115b and whose lower end is fixed to the first lower ring fixing bracket 121a, A seventh outer spring 83g whose upper end is fixed to the second upper ring fixing bracket 115b and whose lower end is fixed to the third lower ring fixing bracket 121c and an upper end fixed to the third upper ring fixing bracket 115c An eighth outer spring 83h whose lower end is fixed to the third lower ring fixing bracket 121c and whose upper end is fixed to the third upper ring fixing bracket 115c and whose lower end is fixed to the second lower ring fixing bracket 121b The ninth outer spring 83i, and the upper end are fixed to the first upper ring fixing bracket 115a Provided that comprises a first outer spring 10 (83j) secured to the second lower ring fixing bracket (121b).

When the upper plate 75 and the lower plate 77 are twisted due to an earthquake or an external factor, the outer spring 83 arranged diagonally between the upper and lower plates 75 and 77 is prevented from being caught by the upper plate 75 Thereby restoring the distortion of the lower plate 77.

The outer spring 83 prevents the switchboard 1 from being tilted to one side when the switchboard 1 is horizontally or diagonally vibrated in the left and right directions due to an earthquake or an external factor, When it is aimed at one side, it quickly restores its original position.

When the cabinet 1 is tilted in either direction due to an earthquake or an external shock, the cable-supporting moving vehicle 1, in which the cables 3 are connected, The cable 21 slides in a direction opposite to the tilting direction of the switchboard 1 and at the same time the tension spring 17 resiliently holds the cable supporting mobile body 21 to buffer the vibration transmitted to the cable 3, (3) prevents the switchboard (1) from leaning in a tilting direction.

Further, when the vibration applied to the switchboard 1 is lost, the cable supporting mobile body 21 is slid to the original position by the elastic restoring force of the tension spring 17, thereby returning the position of the cable 3 to the original position.

In addition, when the ground vibrates in the vertical direction due to an earthquake or an external factor, the center spring 81 primarily absorbs the impact, and the flexible bar 79 made of urethane material absorbs the impact.

The annular groove 95 and the through hole 99 formed in the flexible bar 79 are formed so that when the flexible bar 79 is pulled up or down or stretched horizontally or diagonally, And it was excellent in stability after stretching.

In addition, the outer spring 83 can prevent the distribution board 1 from deviating in one direction when the distribution board 1 is swung in the horizontal direction or the diagonal direction to the left, You can restore it to its original location.

Therefore, in the seismic isolation panel to which the nonlinear earthquake-proof spring and the vibration-absorbing cable support device according to the present invention are applied, a part of the cable is fixed in the switchboard 1 and the other part of the cable is cut- hole of the switchboard 1 and the cable exiting the switchboard 1 is tied to the cable tray outside the switchboard 1 so that the switchboard 1 is connected to the upper, · When the cable is shaken to the right, the cable can be minimally stretched or shrunk by minimizing the damage of the cable, and the cable can be prevented from being tilted or scratched in either direction.

In addition, damages to the switchboard 1 and the inside of the switchboard 1 can be suppressed by buffering up-and-down vibration, left-right horizontal vibration, or diagonal-direction vibration transmitted to the switchboard 1 by an earthquake or an external factor.

Further, the present invention can prevent the switchboard 1 from being tilted to one side due to an earthquake.

1. Switchboard 3. Cable
5. Cutting hole 7. Cable support
9. First cable through hole 11. External case
13. Second cable through hole 15. External top cover
17. Tension spring 17a. The first tension spring
17b. Second tension spring 17c. Third tension spring
17d. The fourth tension spring 17e. The fifth tension spring
17f. Sixth tension spring 19. Third cable through hole
21. Cable supporting moving body 23. Cable supporting rod
25. Navigator type bolt fixing piece 27. Upper bolt assembly hole
29. Side bolt assembly hole 31. Cable support moving body top plate
33. Cable supporting movable bottom plate 35. Middle connecting piece
37. Upper ballhole 39. Lower ballhole
41. Upper ball roller 43. Lower ball roller
45. Moving device 47. One side fixed connection piece
47a. First side spring fixing connection piece 47b. The second one-side spring fixing connecting piece
47c. Third side spring fixing connecting piece 47d. Fourth spring fixed connection piece
47e. Fifth one side spring fixing connecting piece 47f. 6th spring fixed connection piece
48. The other spring fixed connection 48a. The first other-side spring fixing connecting piece
48b. The second other-side spring fixing connecting piece 48c. The third other-side spring fixing connecting piece
48d. The fourth other-side spring fixing connecting piece 48e. The fifth side spring fixing connecting piece
48f. Sixth sixth spring fixed connecting piece 49. Ball roller mounting hole
51. Housing 53. Buffer member
55. Upper moving device fixing hole 57. Lower moving device fixing hole
59. Housing upper fixing hole 61. Housing lower fixing hole
63. Booth Bar 65. Booth Duct
67. Fittings 69. Busbars for connecting to switchboards
71. Upper base 73. Lower base
75. Top plate 77. Lower plate
79. Flexible bar 81. Central spring
83. Outer spring 85. Buffering means
87a, 87b. Each pipe 89a, 89b. C type
91. Upper base fixing bolt hole 93. Lower base fixing bolt hole
95. Annular groove 97. Rubber ring
99. Through hole 101. Bolt tap
103. Downward Tang 105. Upper Tang
107. Upper bolt hole 109. Upper step
111. Lower bolt hole 113. Upper bolt fixing bracket
115a. The first upper ring fixing bracket 115b. The second upper ring fixing bracket
115c. Third upper ring fixing bracket 117. Lower ring fixing hole
119. Lower ring fixing bracket 121a. The first lower ring fixing bracket
121b. The second lower ring fixing bracket 121c. The third lower ring fixing bracket
123a, 123b. Ball 125. Upper ring
127. Lower ring 129. Movable bar through hole
131. Cable supporting moving body locking means 133. First movable bar
135. First solenoid 137. Relay
139. a contact switch 141. Vibration sensing means
143. Power supply 145. Switchgear door
147. Switchgear door locking means 149. Locking hole
151. Door lock bracket 153. Clasp
155. Manual lever 157. Locking groove
158. Second movable bar 159. Second solenoid
161. Door lock release switch 163. Indicator
165. Breaker b contact switch 167. Relay b contact switch

Claims (5)

And a cutting hole 5 (Cutting Hole) for passing the cable 3 through the switchboard 1 into the switchboard 1 or for exporting the cable 3 to the outside of the switchboard 1, And a nonlinear earthquake-resistant spring for preventing vibration from being transmitted to the switchboard 1 and preventing the switchboard 1 from being conducted by the vibration transmitted from the ground. In the state where the switchboard 1 is mounted on the switchboard 1, The cable 3 absorbs the vibration transmitted to the cable 3 when vibration is applied to the switchboard 1 and prevents the cable 3 inserted in the cutting hole 5 from being tilted or stuck in one direction, In which a non-linear vibration-proof spring having a cable supporting device (7) for moving the position of the cable (3) to its original position and a vibration-
The nonlinear earthquake-proof spring is constituted by four or more buffer means 85,
The cable supporting device 7 includes an outer case 11 which is hollow and has a top surface opened and a first cable passage hole 9 penetrated to allow the cable 3 to pass therethrough and mounted inside the switchboard 1;
And a second cable through hole 13 through which the cable 3 is passed while being covered with the open upper surface of the outer case 11 and communicating with the first cable through hole 9, (15);
A spring having a coil spring which is elastically contracted or expanded and restored and which has one end mounted on the inner circumferential surface of the outer case 11 and four or more mounted on the inner circumferential surface of the outer circumferential surface of the outer case 11 );
The cable 3 is slid in a state of being mounted in the outer case 11 and the outer circumferential surface thereof is connected to the other end of the tension spring 17 and communicated with the first and second cable passage holes 9 and 13, A cable supporting moving body 21 through which a third cable passing hole 19 is passed;
The cable supporting and moving body 21 is held and fixed to the outer case 11 so that the cable supporting and moving body 21 can not be slid in the outer case 11 when vibration is not transmitted to the switchboard 1 On the other hand, when the vibration is transmitted to the switchboard 1, the cable supporting mobile body 21 is released from the outer casing 11 to allow the cable supporting mobile body 21 to slide freely within the outer casing 11 Supporting mobile body locking means (131);
And a cable support rod 23 fixed to the third cable passage hole 19 as a straight bar and coupled with a cable 3 passing through the third cable passage hole 19,
The locking of the cable supporting and moving body locking means 131 which has fixed the outer case 11 and the cable supporting and moving body 21 is released when the cabinet 1 is shaken by an earthquake or an external impact, Is slid freely in the outer case 11 and the cable supporting movable body 21 holding the cable 3 is slid in the direction opposite to the direction in which the distribution board 1 is tilted so that the cable 3 is tilted and / The tension spring 17 is expanded or contracted by being guided by the cable supporting movable body 21 to thereby elastically hold the cable supporting movable body 21 and to absorb the vibration transmitted to the cable 3, The cable supporting movable body 21 is positioned by the resilient restoring force of the tension spring 17 when the distribution board 1 is returned to its initial position And ears,
The cable supporting moving body 21 has a plate-shaped cable supporting moving body upper plate 31 through which a third cable passing hole 19 passes,
A cable supporting mobile body lower plate 33 disposed parallel to the cable supporting mobile body upper plate 31 at a predetermined height interval from the cable supporting mobile body upper plate 31 and passing through the third cable passing hole 19,
The upper end of the third cable passage hole 19 protruded from the edge of the cable supporting movable body lower plate 33 to the cable supporting movable body upper plate 31 An intermediate connecting piece 35 abutting the edge of the cable passage hole 19 and having the other end of the tension spring 17 connected to the outer peripheral surface,
An upper ballhole 37 penetrating the four corners of the cable supporting and moving member upper plate 31,
A lower ballhole 39 passing through the four corners of the cable supporting lower movable plate 33 facing the upper ballhole 37 in the vertical direction,
A pair of upper and lower ball rollers 41 and 43 are coupled in a vertically symmetrical structure in the housing 51 and the ball of the upper ball roller 41 disposed on the upper side is fitted in the upper ball hole 37, The ball of the lower ball roller 43 is inserted into the lower ball hole 39 and the upper surface of the housing 51 is fixed to the cable supporting movable body upper plate 31 and the lower surface of the housing 51 is fixed to the cable supporting movable lower plate 33, And the ball of the upper ball roller 41 is rolled while being in contact with the bottom surface of the outer upper cover 15 and the ball of the lower ball roller 43 is in contact with the inner upper surface of the outer case 11, And a moving device (45) which rolls the vibration-absorbing cable support device.
delete The method according to claim 1,
Four or more protruding portions of the intermediate connecting piece 35 protrude outwardly of the intermediate connecting piece 35 and a second spring fixing connecting piece 48 connected to the other end of the tension spring 17 by 1: And,
A spring-receiving hole (50) penetrates through the other-side spring-fixing connecting piece (48) so that a hook formed at the other end of the tension spring (17)
On the inner side wall of the outer case 11, four or more one-side spring fixing connecting pieces 47 protruding in the direction of the cable supporting movable body 21 are provided,
One end of the tension spring 17 is fixed to the one-side spring fixing connecting piece 47 at a ratio of 1: 1,
Wherein a spring-receiving hole (50) is passed through the one-side spring fixing connecting piece (47) so that a hook formed on one end of the tension spring (17) is inserted. .
The method according to claim 1,
An upper base 71 fixed to a bottom surface of the power distribution board 1 as a frame in the shape of a letter U on the bottom surface of the distribution board 1,
A lower base 73 is disposed at a lower portion of the upper base 71 and spaced apart from the upper base 71 by a predetermined distance therebetween,
The buffering means 85 is provided on the upper surface of the upper base 71 as a plate type which is sandwiched between the upper and lower bases 71 and 73 and supports the upper base 71 integrally joined with the switchboard 1, A plate 75,
A lower plate 77 fixed to the upper surface of the lower base 73,
A flexible bar 79 having a cylindrical shape and having upper and lower ends fixed to the upper and lower plates 75 and 77 and made of a flexible material,
And an elastic member of a coil shape penetrated by the flexible bar 79. The elastic member is elastically contracted or expanded or resiliently restored when the upper end thereof abuts against the bottom surface of the upper plate 75 and the lower end thereof abuts against the upper surface of the lower plate 77, (81)
Two or more ring-shaped annular grooves 95 are machined on the outer circumferential surface of the flexible bar 79,
A flexible rubber ring 97 having a better elasticity than that of the flexible bar 79 is inserted into the annular groove 95 in the form of a ring so that when an impact is transmitted to the switchboard 1 due to an earthquake or an external factor, Thereby increasing the shock-absorbing characteristics and restoring property of the elastic member 79,
The movable bar passing hole 129 is formed in the outer case 11 and the cable supporting movable body 21,
The cable supporting and moving member locking means 131 is mounted on the bottom surface of the outer case 11 so that when the first movable bar 133 is not operated, The first movable bar 133 is inserted into the through hole 129 of the outer case 11 to prevent the cable supporting movable body 21 from sliding inside the outer case 11, The first movable bar 133 inserted in the movable bar passage hole 129 is pulled out from the movable bar passage hole 129 so that the cable supporting movable body 21 can slide freely in the outer case 11 A first solenoid 135 for providing the first solenoid 135,
A current is supplied to the coil 137 of the relay 137 to close the a contact switch 139 of the relay 137 when the vibration is detected in the state that the first solenoid 135 is mounted inside the switchboard 1, The current supplied to the first solenoid 135 is supplied to the first solenoid 135 by opening the a contact switch 139 of the relay 137 by interrupting the current supplied to the coil 137. [ Vibration detecting means 141 for blocking,
And an a-contact switch 139 connected to the power supply unit 143 to supply current to the first solenoid 135 when the current is supplied from the vibration sensing unit 141, And a relay 137 for opening the a contact switch 139 whose input end is connected to the power supply 143 when the current is not supplied from the first solenoid 135,
When the vibration is transmitted to the switchboard 1, the first movable bar 133 is pulled out of the movable bar passage hole 129 to allow the cable supporting movable body 21 to slide freely in the outer case 11, When the vibration transmitted to the switchboard 1 disappears, the first movable bar 133 is inserted into the movable bar passage hole 129 and the cable supporting movable body 21 is fixed to the outer case 11 Seismic Switchboard with Vibration Absorber Cable Support.
The method according to claim 1,
When the breaker is switched on and current is supplied to the inside of the switchboard 1 and vibration is transmitted to the switchboard 1, the switchboard door 145 is closed to prevent the switchboard door 145 On the other hand, when the breaker is turned off and the current supplied to the inside of the switchboard 1 is cut off and the vibration is not transmitted to the switchboard 1, the switchboard door 145 is unlocked so that the switchboard door 145 is opened Further comprising a switchboard door locking means (147)
The switchboard door locking means 147 includes a door lock bracket 151 mounted on a doorway of the switchboard 1 in a plate form and having a latch hole 149 through the body,
When the door is mounted on the switchboard door 145 as a straight bar and slid in the direction of the door lock bracket 151, one end is fitted in the latch hole 149 to prevent the switchboard door 145 from being opened, A latch 153 for allowing one end of the latch 153 to be inserted into the latch hole 149 when the latch 151 is slid in the opposite direction of the bracket 151 from the latch hole 149 to open the switchboard door 145,
A manual lever 155 installed in the vertical direction of the latch 153 on the outer circumferential surface of the latch 153,
An engaging groove 157 which is recessed on the outer circumferential surface of the latch 153,
The second movable bar 158 that is inserted into the latch groove 157 when the current is supplied in the state where the switch board 145 is mounted is released from the latch groove 157 so that the latch 153 is moved in either direction A second solenoid 159 for preventing one end of the second movable bar 158 from being caught in the latching groove 157 and releasing the latch 153 from the latch passage hole 149 when no current is supplied,
A door lock release switch 161 connected in series to the second solenoid 159 and supplying or blocking a current to the second solenoid 159 when the switch is closed or opened,
An indicator 163 for indicating that it is safe to open the switchboard door 145 when no current is supplied to the switchboard 1 and the vibration is not transmitted to the switchboard 1,
The switch is automatically closed when the current supplied to the switchboard 1 is cut off while the breaker is turned off while the breaker is turned on so that the current is supplied to the switchboard 1 A breaker b contact switch 165 which automatically opens when the switch is turned on,
And an input terminal connected to the power supply unit 143 and connected to the breaker b contact switch 165 and connected to the relay 137. When a current flows from the vibration sensing means 141, And a relay b contact switch 167 for closing the switch when no current flows into the coil of the relay 137 from the vibration detecting means 141,
The relay b contact switch 167 and the breaker b contact switch 165 are automatically opened when the breaker is switched on and a current is supplied to the inside of the switchboard and the vibration is transmitted to the switchboard 1 and the second solenoid 159 are cut off,
One end of the second movable bar 158 is caught by the latching groove 157 and one end of the latch 153 can not escape from the latching passage hole 149 so that the switchgear door 145 is not opened,
The relay b contact switch 167 and the breaker b contact switch 165 are automatically turned on when the breaker is switched off and the current supplied to the inside of the switchboard 1 is interrupted and no vibration is transmitted to the switchboard 1 When the door lock release switch 161 is closed and the door lock release switch 161 is closed, current is supplied to the second solenoid 159, one end of the second movable bar 158 is released from the latch groove 157, and the manual lever 155 is released from the door lock bracket 151 The one end of the latch 153 is pulled out from the latch through hole 149 to open the switchboard door 145. The anti-vibration seismic switch according to claim 1,

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