KR102475668B1 - Power cut-off device safety system - Google Patents

Abstract

The present invention relates to a safety system for a sudden disconnection device capable of preventing safety accidents for workers performing maintenance and inspection of trains.
A feature of the present invention is that the disconnector is provided to cut off or connect the power to be supplied to the train, the disconnector box 100 in which the grounding box key 500 is stored and opened and closed by the disconnector box key 200, and the power line are grounded. The grounding rod restraint box 400, which restrains and stores the grounding rod 300, and the disconnector key 200 and the grounding sealing key 500 are stored and opened and closed by the grounding rod key 500 or the key change box key 700 , A plurality of work keys 900 used to open or close the work space 810 of the upper work table 800 are restrained and stored and opened and closed by the key change box key 700 or work key 900, When the key change box key 700 is restrained, the operation key 900 is released, and when all the operation keys 900 are restrained, the key change box 600 capable of releasing the restraint of the key change box key 700 is provided. include

Description

Power cut-off device safety system}

The present invention relates to a safety system for a sudden disconnection device capable of preventing safety accidents for workers performing maintenance and inspection of trains.

In general, railroad vehicles that operate at high speeds, such as trains, are frequently inspected or repaired after operation.

Therefore, in order to perform various tasks, workers stand on top of the railway vehicle through the upper work table located on both sides of the track and work. At this time, in order to prevent an electric shock accident in advance, after cutting off the power to the power line, hang a ground rod on the power line to confirm that the power is cut off, and then go up to the top of the railroad car through the upper workbench.

Then, when the work is completed, the high voltage is supplied to the power line after recovering the grounding rods hung on the power line in the process of returning the workers.

However, if the ground rods are retrieved and high voltage is supplied without checking whether all workers have returned, high voltage is energized through the power line, so there is a problem in that electric shock accidents occur for workers who do not return.

The background art of the present invention is published in Patent Registration No. 10-1885034 (5018.07.27.) at the Korean Intellectual Property Office.

The problem to be solved by the present invention is to provide a safety system for a sudden disconnection device capable of preventing safety accidents for workers performing maintenance and inspection of trains.

Another problem of the present invention is that the operator performing the maintenance and inspection work of the train does not need to store a plurality of keys, and if even one key of the operator is not recovered, the key of the disconnection box cannot be operated and high voltage cannot be supplied. It is intended to provide a safety system for emergency disconnection devices that can fundamentally prevent loss.

The emergency power disconnection device safety system according to an embodiment of the present invention is provided with a disconnector that cuts off or connects power to be supplied to the train, and the ground seal key 500 is stored and opened and closed by the disconnector key 200 The disconnection box 100 and the grounding rod 300 grounded to the power line are restrained and stored, the disconnection box key 200 and the grounding box key 500 are stored, and the grounding box key 500 or the key change box key 700 The grounding rod restraint box 400 opened and closed by and a plurality of work keys 900 used to open or close the work space 810 of the upper work table 800 are restrained and stored, and the key change box key 700 or It is opened and closed by the work key 900, and when the key change box key 700 is restrained, the work key 900 is released, and when all work keys 900 are restrained, the key change box key 700 is released. It includes a key change box 600 that can be used, and when the power is cut off using a disconnector, the ground sealing key 500 is stored in the disconnector box 100, and when the power is connected, the disconnector box 100 The grounding box key 500 stored in is collected, and when the grounding rod 300 is released, the disconnector box key 200 and the grounding box key 500 are stored in the grounding rod restraint box 400, and the key change box key ( 700) is collected, and when the grounding rod 300 is restrained, the key change box key 700 is stored in the grounding rod restraint box 400, and the disconnector key 200 and the grounding rod key 500 are collected. do.

Preferably, the disconnector box 100 has an inner space in which the disconnector is built, the enclosure 110 in which the ground sealing key 500 is stored in the inner space, and the door 120 for opening and closing the enclosure 110 And, characterized in that it comprises a disconnection box locking device 130 for locking or unlocking the door 120 to the housing 110 by being operated by the disconnecting key 200.

Preferably, the ground rod restraint box 400 has an inner space open to the front, communicates vertically around the inner space, and has a receiving groove 411 in which the ground rod 300 is accommodated, and a key change box key in the inner space ( 700) is stored, a ground sealing gear 420 that opens and closes the inner space of the ground enclosure 410 to restrain the ground rod 300 accommodated in the receiving groove 411, and a ground sealing key. Grounding together with the grounding rod locking device 430 and the disconnector key 200 that lock or unlock the grounding rod speed gear 420 to the earthing rod enclosure 410 by being manipulated by the 500 or the key change box key 700 When the sealing key 500 is restrained, the key change box key 700 is released, and when the key change box key 700 is restrained, the key binding unit that releases the ground sealing key 500 together with the disconnect key 200. It is characterized by including (440).

Preferably, a locking step 412 is formed on the grounding enclosure 410, and the grounding rod locking device 430 is provided on the grounding rod locking gear 420 and is operated by the operation of the grounding rod key 500 so that the grounding rod locking device 410 The first ground rod locking part 431 that is caught and locked by the locking jaw 412 of the ground rod locking part 431 and the ground rod speed gear 420 are operated by the operation of the key change box key 700 and the locking jaw of the ground rod enclosure 410 ( 412) is characterized in that it includes a second ground rod locking part 432 that is caught and locked.

Preferably, the key restraint portion 440 includes a first insertion portion 441 into which the disconnect key 200 is inserted, a second insertion portion 442 into which the ground sealing key 500 is inserted, and a key change box key ( 700) is inserted into the third insertion portion 443, the disconnection key 200 inserted into the first insertion portion 441, and the ground sealing key 500 inserted into the second insertion portion 442 are constrained together. The first key restraint part 444, the second key restraint part 445 for restraining the key change box key 700 inserted into the third insert part 443, and the disconnecting key in the first insert part 441 200 is inserted, detects that the ground sealing key 500 is inserted into the second insertion part 442, and senses that the key change box key 700 is inserted into the third insertion part 443. When the branch 446 and the key detection unit 446 detect the ground sealing key 500 inserted into the second insertion unit 442 while detecting the disconnector key 200 inserted into the first insertion unit 441, the key When the second key restraining part 445 is controlled to release the change box key 700 and the key detecting part 446 detects the key change box key 700 inserted into the second insertion part 442, the disconnection box key (200) and a restraint control unit (447) for controlling the first key restraint unit (444) to release the ground sealing key (500).

Preferably, the key change box 600 has a change box 610 in which an inner space is open to the front and work keys 900 are stored in the inner space, and a change door that opens and closes the inner space of the change box 610. 620, a first change lock device 630 that is operated by the key change box key 700 to lock or unlock the change door 620 to the change box 610, and work keys 900 When the plurality of second change lock devices 640 and the key change box key 700 are locked to lock or unlock the change door 620 to the change box 610 by being operated by each, the work key 900 It is characterized in that it includes a chain restraining unit 650 that releases the restraints and releases the key change box key 700 when all the work keys 900 are restrained.

Preferably, a locking jaw 611 is formed on the change box 610, and the change retaining part 650 includes a first insertion part 651 into which the key change box key 700 is inserted, and the work key 900. A plurality of second insertion portions 652 each inserted, a first key restraint portion 653 for restraining the key change box key 700 inserted into the first insertion portion 651, and a second insertion portion 652 ) Detects that the key change box key 700 is inserted into the second key binding part 654 and the first insertion part 651 that restrains the work keys 900 respectively inserted into the second insertion part ( 652), the key detection unit 655 detects that the work keys 900 are inserted, and the first insertion unit 651 detects that the key change box key 700 is inserted so that the work keys 900 are released. Controls the second key restraint part 654 and detects that all the work keys 900 are inserted into the second insertion parts 652 so that the key change box key 700 is released so that the first key restraint part 653 ) It is characterized in that it comprises a restraint control unit 656 for controlling.

The present invention has an effect of preventing safety accidents for workers performing maintenance and inspection work of trains because the grounding rod grounded to the power line can be separated in the absence of a worker.

In addition, workers performing maintenance and inspection of trains do not need to store a plurality of keys, so that loss can be fundamentally prevented.

1 is a view showing a disconnection box applied to a safety system for emergency disconnection devices according to an embodiment of the present invention.
2 is a perspective view showing a state in which the disconnector box of FIG. 1 is opened;
Figure 3 is a perspective view showing a state in which the ground rod is restrained in the ground rod restraint box applied to the present invention.
Figure 4 is a perspective view showing an open state of the earth rod restraint box of Figure 3;
Figure 5 is a block diagram showing a key restraint applied to the ground rod restraint box of the present invention.
Figure 6 is a perspective view showing a key change box applied to the present invention.
7 is a perspective view showing a state in which the key change box of FIG. 6 is opened;
Figure 8 is a block diagram showing a chain sustaining unit applied to the key change box of the present invention.
Figure 9 is a perspective view showing an upper work table applied to the present invention.

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

As shown in FIGS. 1 to 9, the emergency power disconnection device safety system according to an embodiment of the present invention is provided with a disconnector that cuts off or connects power to be supplied to the train, and a ground sealing key 500 The disconnector box 100 that is stored and opened and closed by the disconnector box key 200 and the grounding rod 300 grounded to the power line are restrained and stored, and the disconnector box key 200 and the grounding box key 500 are stored and the grounding rod key ( 500) or a key change box key 700, and a plurality of work keys 900 used to open or close the work space 810 of the upper work table 800 are restrained. It is stored and opened and closed by the key change box key 700 or the work key 900, and when the key change box key 700 is restrained, the work key 900 is released and all the work keys 900 are restrained It includes a key change box 600 capable of releasing the restraint of the key change box key 700.

The disconnector box 100 has an inner space in which the disconnector is built, a housing 110 in which a ground sealing key 500 is stored in the inner space, a door 120 for opening and closing the housing 110, and a disconnector The door 120 is operated by the ham key 200 to lock or unlock the door 120 to the housing 110, and includes a disconnection box locking device 130.

Here, the disconnector has a key insertion portion 101 into which the disconnector key 200 and the vehicle grounding key (not shown) are inserted. The disconnector can be operated by rotating it in the state or reverse rotation. That is, the high voltage supplied to the power line can be cut off or connected.

The disconnection box locking device 130 locks or unlocks the disconnection box door 120 of the disconnection box 100.

The disconnection box key 200 locks or unlocks the locking device 130 of the disconnection box 100. That is, the operator can operate the disconnector after receiving the disconnector box key 200 from the management team and opening the disconnector box 100, and can collect the grounding seal key 500 stored in the disconnector box 100 .

The ground rod restraint box 400 has an inner space open to the front, communicates vertically around the inner space, and has a receiving groove 411 in which the ground rod 300 is accommodated, and a key change box key 700 is formed in the inner space. The stored ground sealing body 410, the ground sealing speed gear 420 for restraining the ground rod 300 accommodated in the receiving groove 411 while opening and closing the inner space of the ground sealing body 410, and the ground sealing key 500 The grounding rod locking device 430, which is operated by the key change box key 700 to lock or unlock the grounding rod speed gear 420 to the earthing rod enclosure 410, and the earthing rod lock key (200) together with the disconnector key 200 500) is restrained to release the key change box key 700, and when the key change box key 700 is restrained key restraint unit 440 for releasing the ground seal key 500 together with the disconnector box key 200 includes The ground rod 300 is formed in a cylindrical rod shape with an upper end bent in a ring shape, and when grounded to a power line supplying power to a train, it is grounded to prevent safety accidents.

The ground enclosure 410 may be fixedly installed on a structure such as a wall or a pole in a workplace where work on trains is performed. When the ground rod 300 is inserted into the ground enclosure 410, upper and lower portions of the ground rod 300 may be respectively supported in the accommodating grooves 411 of the ground enclosure 410. In addition, a locking step 412 is formed on the ground enclosure 410 .

When the ground rod speeder 420 is closed to the ground enclosure 410, the outside of the ground rod 300 is supported so that the restrained state can be firmly maintained.

The grounding rod locking device 430 is provided in the grounding rod locking gear 420 and is operated by the operation of the grounding rod locking key 500 to lock the first earthing rod locking part 431 by being caught on the hook 412 of the grounding rod enclosure 410. And, a second ground rod locking part 432 provided in the ground rod speeder 420 and operated by the operation of the key change box key 700 to be caught and locked by the locking jaw 412 of the earth rod enclosure 410.

When the first ground rod locking part 431 is rotated while the ground rod lock key 500 is inserted, the latch is rotated, so that the rotated clasp is caught on the locking jaw 412 of the ground rod enclosure 410 and the ground rod speed gear 420 is won't open Of course, when the ground sealing key 500 is rotated in the opposite direction, the ground sealing speed door 420 is opened. Here, even if the grounding rod locking key 500 is inserted into the first grounding rod locking part 431 and discharged to the outside after operation, the locked or unlocked state of the first grounding rod locking part 431 is continuously maintained.

The second ground rod locking part 432 rotates the clasp when the key change box key 700 is inserted and rotates, so that the rotating clasp is caught on the locking jaw 412 of the ground rod enclosure 410 and the ground rod speed gear 420 will not open. Of course, when the key change box key 700 is rotated in the opposite direction, the ground closing speed door 420 is opened. Here, even if the key change box key 700 is also inserted into the second ground rod locking part 432 and discharged to the outside after operation, the locked or unlocked state of the second ground rod locking part 432 is maintained.

Therefore, after the operator unlocks the first grounding rod locking part 431 using the grounding rod locking key 500 to open the grounding rod speeder 420, the grounding rod 300 can be discharged so that it can be grounded to the power line. , While accommodating the disconnector key 200 and the ground sealing key 500 in the ground enclosure 410, the key change box key 700 can be discharged and collected.

In addition, when the operator locks the second ground rod locking part 432 using the key change box key 700, the closed state of the ground rod speed gear 420 is maintained, so that the disconnector key 200 and the ground rod key 500 The stored state of can be maintained.

In addition, after the operator unlocks the second grounding rod locking part 432 using the key change box key 700 to open the grounding rod speed door 420, the grounding rod 300 grounded in the power line can be accommodated, , While accommodating the key change box key 700 in the ground enclosure 410, the disconnector key 200 and the ground enclosure key 500 can be discharged and collected.

In addition, when the operator locks the first grounding rod locking part 431 using the grounding rod locking key 500, the closed state of the earthing rod speed gear 420 is maintained, so that the stored state of the key change box key 700 is maintained. It can be.

The key restraining part 440 includes a first insertion part 441 into which the disconnect key 200 is inserted, a second insertion part 442 into which the ground sealing key 500 is inserted, and a key change box key 700. A first key that constrains the third insertion portion 443 inserted, the disconnecting key 200 inserted into the first insertion portion 441, and the ground sealing key 500 inserted into the second insertion portion 442 together. The restraining part 444, the second key restraining part 445 for restraining the key change box key 700 inserted into the third inserting part 443, and the disconnection box key 200 in the first inserting part 441 A key detection unit 446 that detects the insertion of a key, detects that the ground seal key 500 is inserted into the second insertion unit 442, and detects that the key change box key 700 is inserted into the third insertion unit 443. ) And, when the key detection unit 446 detects the ground sealing key 500 inserted into the second insertion unit 442 while detecting the disconnection box key 200 inserted into the first insertion unit 441, the key change box key When the second key restraint unit 445 is controlled to release the 700 and the key detecting unit 446 detects the key change box key 700 inserted into the second insertion unit 442, the disconnection box key 200 and a restraint control unit 447 that controls the first key restraint unit 444 to release the ground seal key 500 . At this time, the first key restraint part 444 and the second key restraint part 445 detect when the ground seal key 500 and the disconnector box key 200 are rotated after being inserted, and the key detecting part 446 is a key change box. It is desirable to detect if the key 700 is rotated after being inserted.

Therefore, the key change box key 700 is released only when the disconnector key 200 and the ground seal key 500 are both restrained to the key restraint part 440 . That is, the key change box key 700 can be ejected from the grounding enclosure 410 and the disconnector key 200 and the grounding enclosure key 500 are stored in the earthing enclosure 410 .

Conversely, when the key change box key 700 is restrained to the key restraint part 440, the disconnector key 200 and the ground sealing key 500 are released together. That is, the disconnector key 200 and the ground sealing key 500 can be ejected from the ground enclosure 410 and the key change box key 700 is stored in the earth enclosure 410 .

The key change box 600 is operated by a change box 610 in which the inner space is opened to the front, a change door 620 that opens and closes the inner space of the change box 610, and a key change box key 700. The change door 620 is operated by the first change locking device 630 for locking or unlocking the change door 620 to or unlocking the change box 610 and the working keys 900 to move the change door 620 to the change box 610. When the plurality of second change locks 640 that lock or unlock the key change box key 700 are restrained, the work keys 900 are released, and when all the work keys 900 are restrained, the key change A chain retainer 650 that releases the box key 700 is included.

A locking step 611 is formed in the change box 610, and a chain restraining part 650 is provided in the inner space.

When the change door 620 closes the change box 610, the key change box key 700 or work keys 900 may be stored.

The first change lock device 630 rotates the latch when the key change box key 700 is inserted, so that the rotated latch is caught on the locking jaw 611 of the change box 610 and the change door 620 will not open. Of course, when the key change box key 700 is rotated in the opposite direction, the change door 620 is opened. Here, even if the key change box key 700 is inserted into and operated by the first change lock device 630 and discharged to the outside, the locked or unlocked state of the first change lock device 630 is continuously maintained.

The second change lock devices 640 rotate each latch when the work keys 900 are inserted, respectively, so that the rotated latches are caught on the locking jaw 611 of the change box 610 and the change door 620 ) will not open. Of course, if the work keys 900 are rotated in the opposite direction, the change door 620 is opened. Here, even if the work key 900 is also inserted into the second change lock device 640 and discharged to the outside after operation, the locked or unlocked state of the second change lock device 640 is continuously maintained.

Therefore, after the operator unlocks the first change lock device 630 using the key change box key 700 to open the change door 620, the key change box key 700 is accommodated in the change box 610. And the work keys 900 can be discharged and collected.

In addition, when the operator locks the second change lock device 640 using the work keys 900, the closed state of the change door 620 is maintained, so that the stored state of the key change box key 700 can be maintained. have.

In addition, if the operator unlocks the second change lock device 640 using the work keys 900 to open the change door 620 and accommodates all the work keys 900 in the change box 610, the key change The box key 700 can be discharged and collected.

In addition, when the operator locks the second change lock device 640 using the work keys 900, the closed state of the change door 620 is maintained, so that the stored state of the work keys 900 can be maintained.

The change retaining part 650 includes a first insertion part 651 into which the key change box key 700 is inserted, a plurality of second insertion parts 652 into which the work keys 900 are respectively inserted, and the first insertion part A first key restraint 653 that restrains the key change box key 700 inserted into 651 and a second key restraint that restrains work keys 900 respectively inserted into second insertion parts 652 The unit 654 and the key detection unit 655 detects that the key change box key 700 is inserted into the first insertion unit 651 and detects that the operation keys 900 are inserted into the second insertion units 652. ) and, when detecting that the key change box key 700 is inserted into the first insertion part 651, the second key restraint part 654 is controlled so that the work keys 900 are released, and the second insertion part 652 ) includes a restraint control unit 656 that controls the first key restraint unit 653 so that the key change box key 700 is released when it detects that all the work keys 900 are inserted. At this time, it is preferable that the key detection unit 655 detects when the key change box key 700 and the work key 900 are rotated after being inserted.

Therefore, when the key change box key 700 is constrained to the change restraint part 650, the work keys 900 are released. That is, the key change box key 700 must be stored in the change box 610 so that the work keys 900 can be discharged from the change box 610 .

Contrary to this, when all the work keys 900 are constrained to the change restraint unit 650, the key change box key 700 is released. That is, all work keys 900 must be stored in the ground enclosure 410 so that the key change box key 700 can be ejected from the change box 610 .

The key change box key 700 can operate the first change lock device 630 of the key change box 600 and the second ground rod locking part 432 of the ground rod lock device 430 . Also, the key change box key 700 may be stored in the inner space of the ground rod restraint box 400 .

The upper work table 800 includes a work space 810 that is located close to the train and a worker climbs up to work, and a plurality of opening and closing doors provided on both sides of the work space 810 to open and close the work space 810. 820 and a plurality of work locking devices 830 for locking or unlocking the opening/closing doors 820, respectively.

Since the upper work platform 800 is composed of a plurality and is located on both sides of the rails on which the train moves, workers on each upper work platform 800 perform inspection and maintenance work while being located on both sides of the train. can be done

The upper work table locking device 830 is composed of a plurality and is provided in each of the opening and closing doors 820 of the upper work table 800.

A plurality of work keys 900 may be stored in the inner space of the key change box 600, and lock or unlock the upper work table locking devices 830, respectively.

Hereinafter, the use process and effects of the present invention will be described.

A worker receives the disconnection key 200 managed by the management team. The disconnection box 100 is opened using the received disconnection box key 200. Subsequently, the disconnector provided in the disconnector box 100 is operated with the disconnector key 200 and the vehicle grounding key (not shown) to close the electrical circuit charged in the special high voltage circuit. That is, the supply of power to the power line is cut off.

Then, the operator discharges the grounding seal key 500 accommodated in the disconnection box 100 and carries it together with the disconnection box key 200.

Subsequently, the disconnector box 100 is closed using the disconnector key 200 so that the operated state of the disconnector can be protected.

The operator opens the ground rod restraint box 400 using the carrying earth rod lock key 500 to discharge the ground rod 300 to the outside. Then, the operator grounds the ground rod 300 by hanging it on a power line that supplies power to the train.

In addition, the operator collects the key change box key 700 previously accommodated while accommodating the disconnector box key 200 and the grounding box key 500 in the inner space of the ground rod restraint box 400.

Subsequently, the ground rod restraint box 400 is closed using the key change box key 700 to store the disconnector key 200 and the ground rod lock key 500.

In addition, the key change box 600 is opened using the key change box key 700 to accommodate the key change box key 700 and the work keys 900 are collected. The key change box 600 is closed using the collected working keys 900 .

At this time, the workers move to the upper work table 800 to perform inspection work and maintenance work on the train while carrying the work keys 900 one by one. Subsequently, the upper work table 800 is opened using the portable work keys 900 . In addition, workers pass through the opening and closing door 820 of the open upper work table 800 and move to the work space 810, and then perform inspection work or maintenance work on the train.

In this way, when the workers complete inspection work or repair work on the train, they move to the outside of the upper work table 800 and then close the upper work table 800. Then, after moving to the change box 600 in a state carried by workers, the key change box 600 is opened using the respective work keys 900 .

Subsequently, when all the work keys 900 are accommodated in the key change box 600, the key change box key 700 is collected. In addition, the key change box 600 is closed using the key change box key 700 collected after the key change box 600 is closed.

Then, the ground rod restraint box 400 is opened using the collected key change box key 700 . Subsequently, the ground rod 300 caught on the power line is collected and accommodated in the ground rod restraint box 400, and the key change box key 700 is also accommodated in the ground rod restraint box 400 while the disconnector key accommodated in the ground rod restraint box 400 (200) and the ground sealing key (500) are collected.

Then, the ground rod restraint box 400 is closed with the ground rod lock key 500. That is, while the ground rod 300 is restrained and stored in the ground rod restraint box 400, the key change box key 700 is also stored in an accommodated state. Here, since power is input to the power line in the process of collecting the ground rod 300, power can be supplied to the train through the power line.

Then, the operator moves to the disconnection box 100 while carrying the collected disconnection box key 200 and the ground sealing key 500, and opens the disconnection box 100 with the disconnection box key 200. Subsequently, the disconnector provided in the disconnector box 100 is operated with the disconnector key 200 and the vehicle grounding key so that power is supplied to the power line.

Then, the disconnector box 100 is closed while the grounding seal key 500 is accommodated in the open disconnector box 100. That is, the ground sealing key 500 is stored in the disconnection box 100 .

Finally, the portable disconnector key 200 is returned to the management team.

In this way, while cutting off the power with the disconnector by sequentially using the disconnector key 200, the ground seal key 500, the key change box key 700, and the work key 900 of the present invention, the ground rod 300 is connected to the power line. After grounding and opening the upper work table 800, work on the train is performed.

Then, after the work on the train is completed, using the work key 900, the key change box key 700, the ground seal key 500, and the disconnector box key 200 in reverse order to recover the ground rod 300, the power wire is disconnected. power can be applied to As a result, even if a plurality of workers perform work, it is possible to confirm the return of all workers, and thus, it is possible to prevent a safety accident for workers who have not returned due to high voltage in the process of applying power to the power line.

As described above, the present invention can prevent safety accidents for workers performing maintenance and inspection of trains, so it can be applied to a safety system for sudden power disconnection devices and can be widely used.

Those skilled in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative and not restrictive in all respects, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and equivalent concepts thereof. It should be construed that all changes or modified forms derived from are included in the scope of the present invention.

100: disconnection box 110: enclosure
120: door 130: disconnector box lock
200: disconnector key 300: ground rod
400: ground rod restraint 410: ground rod enclosure
411: receiving groove 412: locking jaw
420: grounding rod speeder 430: grounding rod locking device
431: first ground bar locking unit 432: second ground bar locking unit
440: key restraint part 441: first insertion part
442: second insertion part 443: third insertion part
444: first key restraint 445: second key restraint
446: key detection unit 447: restraint control unit
500: ground rod key 600: key change box
610: change box body 611: locking jaw
620: change door 630: first change lock
640: second change locking device 650: chain holding part
651: first insertion part 652: second insertion part
653: first key restraint 654: second key restraint
655: key detection unit 656: restraint control unit
700: key change box key 800: upper work table
810: work space 900: work key

Claims (9)

A disconnector box 100 provided with a disconnector that cuts off or connects power to be supplied to the train, stores a grounding seal key 500, and is opened and closed by the disconnector key 200;
The grounding rod 300 grounded to the power line is restrained and stored, the disconnector key 200 and the grounding rod key 500 are stored, and the earthing rod restraint box is opened and closed by the grounding rod key 500 or the key change box key 700 ( 400) and,
A plurality of work keys 900 used to open or close the work space 810 of the upper work table 800 are restrained and stored and opened and closed by the key change box key 700 or work key 900, Includes a key change box 600 capable of releasing the restraint of the work key 900 when the change box key 700 is restrained and releasing the restraint of the key change box key 700 when all the work keys 900 are restrained and
When the power is cut off using the disconnector, the grounding sealing key 500 is stored in the disconnecting box 100, and when the power is connected, the grounding sealing key 500 stored in the disconnecting box 100 is collected,
When the ground rod 300 is released, the key change box key 700 is collected while the disconnector box key 200 and the ground rod box key 500 are stored in the ground rod restraint box 400, and the ground rod 300 is restrained In this case, the emergency disconnection device safety system, characterized in that the disconnector box key 200 and the grounding box key 500 are collected while the key change box key 700 is stored in the ground rod restraint box 400.
The method of claim 1,
The disconnection box 100 is
An enclosure 110 in which an internal space in which a disconnector is built is formed and a ground sealing key 500 is stored in the internal space;
A door 120 for opening and closing the enclosure 110;
A sudden power disconnection device safety system comprising a disconnection box locking device 130 that is operated by the disconnection box key 200 to lock or unlock the door 120 to the enclosure 110.
The method of claim 1,
The ground rod restraint box 400 is
The inner space is opened to the front, and a receiving groove 411 is formed in which the ground rod 300 is accommodated by communicating vertically around the inner space, and the ground rod enclosure 410 in which the key change box key 700 is stored in the inner space )Wow,
A ground sealing gear 420 that opens and closes the inner space of the ground rod enclosure 410 to restrain the ground rod 300 accommodated in the receiving groove 411;
A grounding rod locking device 430 that is operated by the grounding enclosure key 500 or the key change box key 700 to lock or unlock the earthing rod speed gear 420 to or from the earthing enclosure 410;
When the ground sealing key 500 is restrained together with the disconnector box key 200, the key change box key 700 is released, and when the key change box key 700 is restrained, the ground seal box key 500 together with the disconnector box key 200 ) A sudden power disconnection device safety system, characterized in that it comprises a key restraining portion 440 for releasing the restraint.
The method of claim 3,
A locking jaw 412 is formed in the ground enclosure 410,
The ground rod locking device 430 is
A first grounding rod locking part 431 provided in the grounding rod speeder 420 and operated by the operation of the earthing rod locking key 500 to be caught and locked by the locking jaw 412 of the earthing rod enclosure 410;
It is provided in the ground rod speed gear 420 and is operated by the operation of the key change box key 700 to include a second earth rod locking part 432 that is locked by being caught on the locking jaw 412 of the earth rod enclosure 410. A safety system for a sudden power failure disconnection device.
The method of claim 3,
The key binding part 440 is
A first insertion portion 441 into which the disconnect key 200 is inserted;
A second insertion portion 442 into which the ground sealing key 500 is inserted;
A third insertion portion 443 into which the key change box key 700 is inserted;
A first key restraining portion 444 that binds the disconnector key 200 inserted into the first insertion portion 441 and the ground sealing key 500 inserted into the second insertion portion 442 together;
A second key restraining part 445 for restraining the key change box key 700 inserted into the third inserting part 443;
Detects that the disconnection box key 200 is inserted into the first insertion part 441, detects that the ground sealing key 500 is inserted into the second insertion part 442, and inserts the key change box into the third insertion part 443 A key detection unit 446 detecting that the key 700 is inserted;
When the key detection unit 446 detects the ground sealing key 500 inserted into the second insertion unit 442 while detecting the disconnection key 200 inserted into the first insertion unit 441, the key change box key 700 Controls the second key restraint part 445 to release the restraint, and when the key detecting part 446 detects the key change box key 700 inserted into the second insertion part 442, the disconnection box key 200 and the ground seal The emergency power disconnection device safety system comprising a restraint control unit 447 for controlling the first key restraint unit 444 to release the key 500.
The method of claim 5,
The first key restraining unit 444 and the second key restraining unit 445 detect when the ground sealing key 500 and the disconnector key 200 are rotated after being inserted, and the key detecting unit 446 is a key change box key ( 700) is inserted and then rotated, characterized in that the emergency disconnection device safety system.
The method of claim 1,
The key change box 600
The inner space is open to the front and the change box body 610 in which the work keys 900 are stored in the inner space;
A change door 620 for opening and closing the inner space of the change box 610;
A first change lock device 630 that is operated by the key change box key 700 to lock or unlock the change door 620 to the change box 610,
A plurality of second change lock devices 640 each operated by the work keys 900 to lock or unlock the change door 620 to the change box 610;
When the key change box key 700 is restrained, the work keys 900 are released, and when all the work keys 900 are restrained, the key change box key 700 is released. Characterized by a sudden power disconnection device safety system.
The method of claim 7,
A locking jaw 611 is formed in the change box 610,
The chain sustaining part 650 is
A first insertion portion 651 into which the key change box key 700 is inserted;
A plurality of second insertion parts 652 into which work keys 900 are respectively inserted;
A first key restraint part 653 for restraining the key change box key 700 inserted into the first insertion part 651;
A second key binding portion 654 for restraining the work keys 900 respectively inserted into the second insertion portions 652;
A key detection unit 655 detecting that the key change box key 700 is inserted into the first insertion unit 651 and detecting that operation keys 900 are inserted into the second insertion units 652;
When it is detected that the key change box key 700 is inserted into the first insertion part 651, the second key restraint part 654 is controlled so that the work keys 900 are released, and the second insertion part 652 A restraint control unit 656 for controlling the first key restraint unit 653 so that the key change box key 700 is released when it detects that all work keys 900 are inserted. system.
The method of claim 5,
The first key restraining unit 444 and the second key restraining unit 445 detect when the ground sealing key 500 and the disconnector key 200 are rotated after being inserted, and the key detecting unit 446 is a key change box key ( 700) is inserted and then rotated, characterized in that the emergency disconnection device safety system.

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