KR102348871B1 - Underground distribution line tray equipped with underground distribution status inspection function - Google Patents

Abstract

The present invention relates to an underground power distribution line tray having an underground power distribution state inspection function, including: a guide rail (100) installed on a wall (1a) of an electric power member (1) through a fixing device to guide a tray assembly (200) to move in a longitudinal direction of the electric power member (1); the tray assembly (200) movably installed on the guide rail (100) through a roller (211b) to support an underground power distribution line (L) so that the underground power distribution line (L) is mounted at various heights; a retractor (300) installed on a top surface of a shelf (211c) of a moving unit (210) to rotate a wire mounting unit (220) about a hinge point so as to adjust an angle of a base (221); a fire detection sensor (400) installed on the tray assembly (200) to detect a fire; a control unit (500) for receiving a fire detection signal from the fire detection sensor (400) to control an operation of a fire extinguisher (600); and the fire extinguisher (600) controlled by the control unit (500) to spray a fire extinguishing liquid. According to the present invention, when a fire occurs due to an electrical short, or when infiltrating water is introduced into a covered wire, which has lost a protective function due to aging, to make contact with a conductive wire through which a current flows so as to cause a fire, the fire is rapidly detected and extinguished so that damage caused by the fire is minimized.

Description

Underground distribution line tray equipped with underground distribution status inspection function

The present invention relates to an underground distribution line tray, and more specifically, when a fire occurs in an electric power sphere, it is possible to quickly extinguish the fire by detecting it, and the underground distribution line can be separated and mounted through free height adjustment, and it is necessary Accordingly, it relates to an underground distribution line tray equipped with an underground distribution condition check function that can maximize the convenience of replacement work because it can tow and hold the underground distribution line erected on the replacement target tray when replacing the tray.

In general, a tunnel-type common area is provided underground, and transmission and distribution cables and communication cables (hereinafter referred to as 'cables') are installed in this common area.

Therefore, in order to keep these various types of cables and pipes neatly arranged without interfering with each other, innumerable multi-stage hangers are installed on the inner wall of the tunnel type cavity.

By using such a hanger, cables can be installed separately without being tangled with each other.

As an example of a hanger for installing cables underground, Korean Patent Registration No. 10-0857773 discloses a device for installing a power transmission cable, which has the advantage of being able to easily and conveniently mount a plurality of cables (underground cables). there is.

However, since the conventional cable hangers are arranged in a downwardly inclined state, when the cables are mounted, they flow down along the inclined surface, making it difficult to ensure stability, and the height adjustment is fundamentally difficult, which is inconvenient to install multiple hangers. there was.

In addition, in the event of a fire, there was no means to suppress it at all.

1. Republic of Korea Patent No. 10-0857773

The present invention has been devised to solve the above problems, and it is possible to quickly extinguish a fire by detecting a fire in the electric power sphere, and to divide and mount the underground distribution line through free height adjustment, and if necessary The purpose of this is to provide an underground distribution line tray equipped with an underground distribution condition check function that can maximize the convenience of replacement work because the underground distribution line installed on the replacement tray can be towed and mounted during the tray replacement operation. There is this.

The present invention for achieving the above object,

A guide rail comprising: a rail part spaced apart from each other along the longitudinal direction of the electric power tool and fixed to the wall; and a reinforcing bar interposed between the rail parts to interconnect the rail parts;

A bogie body disposed in front of the rail unit so as to be orthogonal to the rail unit, a roller movably coupled to the rail unit and interconnecting the rail unit and the bogie body, and a shelf extending forward from the upper end of the bogie body bogie,

A moving unit composed of a brake composed of a bolt fastened to the bogie body and a friction plate that is interconnected with the bolt and reciprocates by the bolt to limit the movement of the bogie by being in close contact with the wall or spaced apart from the wall;

One end is hinged to the lower end of the bogie body, and the side has a base in which a pin coupling hole is formed along the longitudinal direction so that the pin can be inserted and detached;

It is disposed on the upper part of the other end of the base and is hinged to the base, and the upper surface is provided with a wire seating groove recessed in a semicircular shape along the longitudinal direction so that an underground distribution cable can be seated and mounted.

One end is hingedly connected to the wire holder, and the other end is movably arranged on the base and fixed to the base through a pin to support the wire holder so that it can be maintained horizontally;

A wire holding unit consisting of a hanger installed on the lower surface of the other end of the base in the same direction as the rail;

A first guide rail extending downward from the lower end of the bogie body, a second guide rail installed in the longitudinal direction of the lower surface of the base, a first moving block movably coupled to the first guide rail, and a second guide rail to be movable A support mechanism consisting of a second moving block to be coupled, a connecting rod having both ends hingedly connected to the first and second moving blocks, respectively, and a stopper screw that is detachably installed on the first moving block and restricts the movement of the first moving block. a configured tray assembly;

It consists of an electric motor installed on a shelf, a drum rotating in the forward and reverse directions by the electric motor, a traction line that is wound or unwound by the rotation of the drum), and a hook that is connected to the traction line and is detachably installed on the hanger. Retractor for adjusting the angle of the base by rotating about the point;

Fire detection sensor installed on the body of the bogie to detect a fire;

a control unit receiving a fire detection signal from the fire detection sensor and outputting a fire hydrant operation signal;

A fire extinguisher equipped with an injection valve controlled by the operation signal of the fire hydrant from the control unit, installed on the shelf, and spraying the fire extinguishing liquid filled therein to the fire area through the injection valve to suppress the fire; characterized in that it comprises a.

According to the present invention, when the fire detection sensor detects a fire and outputs a detection signal to the control unit, the control unit outputs a fire hydrant operation signal to the fire extinguisher, and the injection valve of the fire extinguisher is operated by the control unit to open the inlet of the injection valve, At this time, the fire extinguishing agent and non-combustible gas filled inside the iron container are sprayed into the electric power outlet through the inlet of the injection valve by the internal pressure to suppress the fire area in an instant, thereby minimizing the damage caused by the fire. there is an advantage

In addition, since the present invention can horizontally align the electric wire holder even if the angle of the base changes, the underground distribution cable can be mounted in a more stable state. In that it is not necessary to install trays at different heights on the wall of the power sphere, as shown in the figure, there is an advantage in that the space utilization is excellent in using the internal space of the power sphere.

1 is a combined perspective view of an underground distribution line tray having an underground distribution state inspection function according to the present invention;
2 is an exploded perspective view of an underground distribution line tray having an underground distribution state inspection function according to the present invention;
3 is a side view of an underground distribution line tray having an underground distribution state inspection function according to the present invention.
Figure 4 is a perspective view showing the remaining components except for the guide rail in the underground distribution line tray having an underground distribution state inspection function according to the present invention.
5 is an exploded perspective view showing an electric wire mounting unit separately extracted from an underground distribution line tray having an underground distribution state inspection function according to the present invention.
Figure 6 is a block diagram showing the correlation between each component in the underground distribution line tray having an underground distribution state inspection function according to the present invention.
7a to 7d are views for explaining the use state of the underground distribution line tray having an underground distribution state inspection function according to the present invention.

Hereinafter, it will be described in detail based on the accompanying drawings.

1 is a combined perspective view of an underground distribution line tray having an underground distribution condition checking function according to the present invention, and FIG. 2 is an exploded perspective view of an underground distribution line tray having an underground distribution condition checking function according to the present invention, FIG. is a side view of an underground distribution line tray having an underground distribution condition inspection function according to the present invention, and FIG. 4 is an underground distribution line tray equipped with an underground distribution condition inspection function according to the present invention. One perspective view, Figure 5 is an exploded perspective view showing the electric wire mounting unit separately extracted from the underground distribution line tray equipped with the underground distribution state inspection function according to the present invention, Figure 6 is provided with the underground distribution state inspection function according to the present invention It is a block diagram showing the correlation between each component in one underground distribution line tray.

1 to 6, the underground distribution line tray according to the present invention is a guide rail 100, a tray assembly 200, a retractor 300, a fire detection sensor 400, a control unit 500, and a fire extinguisher 600 ), and according to this, it is possible to detect and quickly extinguish a fire when a fire occurs within the power sphere, and the underground distribution line (L) can be separated and mounted through free height adjustment, and the tray can be replaced if necessary. There is a technical feature that can maximize the convenience of replacement work because it can tow and hold the underground distribution line (L) installed on the replacement tray.

The guide rail 100 is composed of a rail unit 110 and a reinforcing bar 120, and in this embodiment, it is installed on the wall (1a: see FIG. 7A) of the electric power tool (1: see FIG. 7A) through a fixing means. It serves to guide the tray assembly 200 to be moved along the longitudinal direction of the electric power tool (1).

The rail unit 110 is a metal member having an approximately 'C' shape when viewed from the side. In this embodiment, the rail unit 110 is spaced apart from each other in the longitudinal direction of the electric power tool 1 to be attached to the wall 1a. is fixed

The roller 211b of the tray assembly 200 is drawn into the inside of the rail unit 110 fixed in this way to interconnect the rail unit 110 and the tray assembly 200, and the roller 211b is the rail unit 110. Cloud moves along the inner surface of

The reinforcing bar 120 is interposed between the rail parts 110 and serves to reinforce the rail parts 110 so as not to be structurally deformed while interconnecting the rail parts 110 .

The tray assembly 200 is composed of a moving unit 210, an electric wire holding unit 220, and a support mechanism 230, and in this embodiment, is movably installed on the guide rail 100 via a roller 211b. It serves to support the underground distribution line (L) so that it can be mounted at various heights.

The moving unit 210 and the wire mounting unit 220 are hinged to each other via a pin (see FIG. 4) and thus have a structure that can be folded or unfolded, and the support mechanism 230 is the moving unit 210 and the wire mounting It is movably installed in the unit 220 and serves to support the wire mounting unit 220 .

The moving unit 210 is composed of a bogie 211 and a brake 212. In this embodiment, the moving unit 210 is movably installed on the rail unit 110 via a roller 211b, and the wire holding unit 220 and the retractor 300 , the support mechanism 230 , the fire detection sensor 400 , the control unit 500 , and the fire extinguisher 600 move along the rail unit 110 .

The bogie 211 includes a bogie body 211a, a roller 211b and a shelf 211c.

The bogie body 211a is a rectangular member having a predetermined width and thickness, and is disposed in front of the rail unit 110 so as to be orthogonal to the rail unit 110 in this embodiment.

A fire detection sensor 400 that detects heat or smoke generated during a fire and outputs a detection signal is installed on the front of the bogie body 211a.

The rollers 211b are rotatably installed on the upper and lower ends of the rear surface of the bogie body 211a, respectively, and are built into the rail unit 110 to be able to roll in motion to interconnect the rail unit 110 and the bogie body 211a. do.

The shelf 211c extends horizontally from the front upper end of the bogie body 211a toward the front, the retractor 300 is installed on the upper surface, and the fire extinguisher 600 is installed on the lower surface.

The brake 212 is composed of a bolt 212a and a friction plate 212b. In this embodiment, the brake 212 is installed on the bogie body 211a to selectively restrict the movement of the bogie 211. As shown in FIG.

The bolt (212a) is fastened to pass through the bogie body (211a) and linearly reciprocates forward and backward by rotation.

The friction plate 212b is a rectangular plate having a predetermined width and thickness, and the through-bolts 212a are interconnected on the front side to form an integrated structure, and the rear surface has irregularities to prevent slipping and strengthen adhesion.

For example, as the friction plate 212b is moved by the tightening of the bolt 212a and comes into close contact with the wall 1a (see FIG. 7c ), the movement of the bogie 211 is limited, and conversely, when the bolt 212a is loosened, , as the friction plate 212b is moved by the bolt 212a and is spaced apart from the wall 1a (see FIG. 7c ), the bogie 211 becomes movable.

Referring to FIGS. 4 and 5 , the wire holding unit 220 includes a base 221 , a wire holder 222 , a link bar 223 and a hanger 224 , and in this embodiment, the moving unit 210 ) and a pin connected by hinges to support and support the underground distribution line (L) to be erected.

In addition, the electric wire mounting unit 220 is rotated around the pin by the retractor 300 and can be mounted by dividing the underground distribution line (L) to be erected as the height is adjusted.

The base 221 is a rectangular parallelepiped-shaped metal frame with an opening upward. In this embodiment, one end is hinged to the lower end of the bogie body 211a and rotatably through a pin.

Pin coupling holes 221a are formed on both sides of the base 221 along the longitudinal direction, and a pin P for fixing the link rod 223 to the base 221 is detachable in this pin coupling hole 221a. tightly fitted

The wire holder 222 is a rectangular parallelepiped-shaped metal frame with an opening downward. In this embodiment, the wire holder 222 is disposed on the upper portion of the base 221, and the middle portion is the other end of the base 221 and the pin through the medium. It serves to support and support the underground distribution line (L) that is hinged and mounted rotatably.

In addition, a plurality of wire seating grooves 222a recessed in a semi-circular shape are formed on the upper surface of the wire holder 222 to face each other around a pin.

Since the wire holder 222 is hingedly connected to the base 221, even if the angle of the base 221 changes, it can be rotated around the pin to level it, so that the underground distribution line L can be supported more stably. have.

In order to maintain the horizontal state of the electric wire holder 222, the link stand 223 is used in this embodiment.

The link bar 223 is a rectangular parallelepiped-shaped metal member having a predetermined width and thickness, and one end is rotatably connected to the wire holder 222 and a pin through a pin, and the other end is movable to the base 221 . It is disposed and fixed to the base 221 via a pin (P), and serves to support the electric wire holder 222 to keep it horizontal.

On the other hand, since the wire holder 222 and the link rod 223 can be rotatably connected by various known methods, it is not limited to being interconnected via a pin.

As an example, when the base 221 is rotated around the pin and the angle is changed, the wire holder 222 also forms the same angle as the base 221. In this case, the wire holder 222 is connected to the base 221 . By rotating the pin connected to the center, it is possible to align the wire holder 222 horizontally.

When the wire holder 222 and the link rod 223 connected via the pin are rotated around the pin in the state where the wire holder 222 is horizontally aligned as described above, the other end of the link rod 223 is the base ( 221), and at this time, when the pin coupling hole 221a of the base 221 and the hole (see FIG. 5) formed at the other end of the link bar 223 communicate with each other, the pin is inserted into the pin coupling hole 221a. (P) is inserted to fix the link bar 223 to the base 221, thereby maintaining the horizontal state of the wire holder 222.

The present invention has the advantage that the underground distribution line (L) can be mounted in a more stable state because the electric wire holder 222 can be horizontally aligned even when the angle of the base 221 is changed as described above.

In addition, since the height of the electric wire holder 222 is changed according to the change in the angle of the base 221, there is no need to install trays at different heights on the wall 1a of the electric power unit 1 as in the prior art, Accordingly, there is an advantage in that the space utilization is excellent in using the internal space of the electric power tool (1).

The hanger 224 is a medium for interconnecting the retractor 300 and the base 221, and is a round bar having a constant diameter.

In the case of this embodiment, the hanger 224 is installed on the lower surface of the other end of the base 221 in the same direction as the rail unit 110, and both ends extend in the longitudinal direction of the rail unit 110. The hook 340 of the retractor 300 is detachably coupled.

The support mechanism 230 is composed of first and second guide rails 231,232, first and second moving blocks 233 and 234, a connecting rod 235 and a stopper screw 236, and in this embodiment, one side is a bogie 211 ) and the other side is movably installed on the base 221 to stably support the wire mounting unit 220 .

The first and second guide rails 231,232 are rectangular parallelepiped rods, and in this embodiment, are installed on the lower surface of the bogie body 211a and the lower surface of the base 221, and the first guide rail 231 is the bogie body ( 211a) extends vertically downward from the lower surface, and the second guide rail 232 is installed on the lower surface of the base 221 in the longitudinal direction.

The first and second moving blocks 233 and 234 are blocks having an approximately 'C' shape when viewed from the bottom, and are movably coupled to the first and second guide rails 231,232 in the present embodiment, among which the first moving blocks 233 and 234 are movably coupled. The block 233 is selectively restricted in movement by a stopper screw 236 that is detachably installed.

For reference, a groove (see FIG. 2 ) is integrally formed on the side surface of the first guide rail 231 in the longitudinal direction, and the inner surface of the first moving block 233 is fitted to correspond to the groove (see FIG. 2 ). The falling protrusion (refer to FIG. 2) is integrally formed, and the first guide rail 231 and the first moving block 233 are coupled to each other through a groove and a protrusion, respectively.

In addition, the second guide rail 232 and the second moving block 234 are also coupled to each other through the groove and the protrusion.

The connecting rod 235 is a rod-shaped member having a predetermined width and thickness. In this embodiment, the first moving block 233 and one end are hinge-connected through a pin (refer to FIG. 2), and the second moving block 234 and a pin are hinge-connected to interconnect the first and second moving blocks 233 and 234.

The stopper screw 236 is detachably installed on the first moving block 233 and serves to selectively restrict the movement of the first moving block 233 .

As an example, when the wire holding unit 220 is rotated around a pin connected to the bogie 210 and hinged, in this process, the second moving block 234 moves along the second guide rail 232 along the wall 1a. is moved toward, and the connecting rod 235 is rotated around the pin by the second moving block 234 to push the first moving block 233, and the first moving block 233 is to the connecting rod 235. Accordingly, while moving downward along the first guide rail 231 , a predetermined angle is formed to support the electric wire mounting unit 220 .

When the stopper screw 236 installed in the first moving block 233 is tightened toward the first guide rail 231 in the state arranged as described above, the first moving block 233 is the first guide rail 231 . It is possible to stably support the wire mounting unit 220 as the movement is limited while being fixed to the .

The retractor 300 is composed of an electric motor 310, a drum 320, a traction line 330 and a hook 340. In this embodiment, the retractor 300 is installed on the upper surface of the shelf 211c of the moving unit 210 and is installed on the wire mounting unit. It serves to adjust the angle of the base 221 by rotating 220 around the hinge point.

The electric motor 310 is a conventional double-axis motor capable of rotating the drum 320 installed at both ends in forward and reverse directions.

The drum 320 is fixed to the shaft (not shown) of the electric motor 310 and is rotated in the forward and reverse directions by the electric motor 310 to wind or unwind the traction line 330 .

The traction line 330 is a line (eg, a wire) installed to be wound and unwound on the drum 320 , and one end is connected to the drum 320 , and the other end is connected to the hook 340 , in forward and reverse directions. It is wound around the drum 320 or unwound from the drum 320 by the rotating electric motor 310 .

The hook 340 is a ring-shaped member and is detachably installed on the hanger 224 .

As an example, when the operator operates the retractor 300 using a remote control (not shown), the electric motor 310 is operated by a signal to rotate the drum 320, and is wound by the rotation of the drum 320 The tow line 330 is released.

As described above, when the traction line 330 is released to a certain length, the operator hangs the hook 340 on the hanger 224 of the wire mounting unit 220 .

Then, when the retractor 300 is operated using a remote control (not shown), the electric motor 310 is operated by a signal to rotate the drum 320, and the retractor line 330 released by the rotation of the drum 320 ) is wound on the drum 320 and pulls the hanger 224 , and accordingly, the wire holding unit 220 rotates toward the moving unit 210 around the hinge point.

In this way, the angle of the wire mounting unit 220 can be set in various ways.

According to this embodiment, since there is no need for the operator to directly lift the heavy wire mounting unit 220, it is possible to safely protect the operator from the risk of musculoskeletal injury.

In addition, in the case of replacement of the wire mounting unit 220 constituting the tray assembly 200 as needed, the underground distribution line (L) erected on the replacement target wire mounting unit 220 is pulled to another tray assembly 200. Since it can be temporarily installed, it can be expected to have a side effect of maximizing the convenience of replacement work.

1 and 6, the fire detection sensor 400, the control unit 500, and the fire extinguisher 600 will be described as follows.

The fire detection sensor 400 is a known detection sensor installed on the front side of the bogie body 211a. In this embodiment, a part of the wire is cut due to a rodent (rat), resulting in a fire due to an electric short circuit or aging. In the event of a fire caused by contact with a conducting wire through which infiltration water flows into the coated wire, which has lost its protective function, it detects heat and smoke, and outputs a fire detection signal to the control unit 500 .

The control unit 500 receives the fire detection signal from the fire detection sensor 400 and transmits the fire hydrant operation signal to the injection valve 610 of the fire extinguisher 600 .

The fire extinguisher 600 is installed on the shelf 211c, and when a fire hydrant operation signal is input from the control unit 500, the inlet of the injection valve 610 is opened. The internal pressure is injected into the electric power outlet 1 through the inlet of the injection valve 610 to suppress the fire area in an instant.

The fire extinguisher 600 is made of a hard iron container on the outside, and a fire extinguishing agent and compressed air or incombustible gas (nitrogen, carbon dioxide, halogen gas) liquefied at high pressure inside is filled, and one side of the container is inside An injection valve 610 controlling the outflow of the filled extinguishing agent and non-combustible gas is installed.

As an example, when the fire detection sensor 400 detects a fire and outputs a detection signal to the control unit 500 , the control unit 500 outputs a fire hydrant operation signal to the fire extinguisher 600 , and the fire extinguisher 600 . The injection valve 610 of the is operated by the control unit 500 to open the inlet of the injection valve 610, and at this time, the fire extinguishing agent and non-combustible gas filled in the iron container are injected into the inlet of the injection valve 610 by internal pressure. It is sprayed into the electric power outlet (1) through the power outlet (1) to suppress the fire area in an instant, and through this, it is possible to minimize the damage caused by the fire.

7A to 7D are diagrams for explaining the usage state of the underground distribution line tray according to the present invention, which will be described with reference to the following.

First, the tray assembly 200 is movably installed on the guide rail 100 fixed to the wall 1a of the electric power tool 1 .

Then, the underground distribution line (L) is mounted in the wire seating groove (222a) of the tray assembly (200).

When the underground distribution line L is mounted as described above, the base 221 of the tray assembly 200 is supported by using the support mechanism 230 so that the tray assembly 200 arranged in a cantilever shape does not sag.

On the other hand, when it is necessary to set the height of the wire mounting unit 220 constituting the tray assembly 200, the retractor 300 may be used, and this will be described in more detail as follows.

First, when the operator operates the retractor 300 using a remote control (not shown), the electric motor 310 is operated by a signal to rotate the drum 320, and is wound by the rotation of the drum 320. The traction line 330 is released, and when the traction line 330 is unwound to a predetermined length, the operator hangs the hook 340 on the hanger 224 of the wire mounting unit 220 .

Then, when the retractor 300 is operated using a remote control (not shown), the electric motor 310 is operated by a signal to rotate the drum 320, and the retractor line 330 released by the rotation of the drum 320 ) is wound on the drum 320 and pulls the hanger 224 , and accordingly, the wire holding unit 220 rotates toward the moving unit 210 around the hinge point.

In the process in which the angle of the base 221 constituting the wire mounting unit 220 is gradually changed as described above, it is good for the operator to level the wire holder 222 constituting the wire mounting unit 220, which is This is to prevent the underground distribution line (L) from being separated from the wire seating groove (222a) in advance.

In a state where the angle of the base 221 is set by the above method and the wire holder 222 is leveled, the operator inserts the pin P into the pin coupling hole 221a to The end is fixed to the base 221, and accordingly, the wire holder 222 can stably maintain a horizontal state.

On the other hand, the second moving block 234 installed on the lower surface of the base 221 in the process of rotating the wire holding unit 220 moves toward the wall 1a along the second guide rail 232, The connecting rod 235 is rotated around the pin by the second moving block 234 to push the first moving block 233 , and the first moving block 233 is a first guide rail 231 by the connecting bar 235 . ) to form a predetermined angle to support the wire mounting unit 220 while moving downward along the.

When the stopper screw 236 installed in the first moving block 233 is tightened toward the first guide rail 231 in the state arranged as described above, the first moving block 233 is the first guide rail 231 . It is possible to stably support the wire mounting unit 220 as the movement is limited while being fixed to the .

When the wire holding unit 220 is stably supported by the support mechanism 230 as described above, the hook 340 of the retractor 300 is separated from the hanger 224 and then the traction line 330 is wound.

As shown in Fig. 7d, a part of the underground distribution line (L) is cut due to rodents (rat), resulting in a fire due to an electric short, or seepage water flows into the inside of the covered line that has lost its protective function due to aging and current flows Heat or smoke is generated due to the occurrence of a fire due to contact with a conductor, and the fire detection sensor 400 detects such heat or smoke and outputs a fire detection signal to the control unit 500 .

The control unit 500 outputs a fire hydrant operation signal to the fire extinguisher 600, and the injection valve 610 of the fire extinguisher 600 is operated by the control unit 500 to open the inlet of the injection valve 610, at this time The fire extinguishing agent and non-combustible gas filled in the iron container are injected into the electric power outlet 1 through the inlet of the injection valve 610 by internal pressure to suppress the fire area in an instant, and through this, damage can be minimized.

Although the present invention has been described in detail only with respect to the specific embodiments described, it is natural for those skilled in the art that various changes and modifications can be made within the technical spirit of the present invention, and it is natural that such variations and modifications belong to the appended claims.

1: electric power bulb 1a: wall 100: guide rail
110: rail unit 120: reinforcing bar 200: tray assembly
210: moving unit 211: bogie 211a: bogie body
211b: roller 211c: lathe 212: brake
212a: bolt 212b: friction plate 220: wire mounting unit
221: base 221a: pin coupling hole 222: wire holder
222a: wire mounting groove 223: link bar 224: hanger
230: support mechanism 231: first guide rail 232: second guide rail
233: first moving block 234: second moving block 235: connecting rod
300: retractor 310: electric motor 320: drum
330: tow line 340: hook 400: fire detection sensor
500: control unit 600: fire extinguisher 610: injection valve

Claims (1)

A rail unit 110 that is spaced apart from each other in parallel along the longitudinal direction of the electric power unit 1 and fixed to the wall 1a, and a reinforcing bar 120 interposed between the rail unit 110 and interconnecting the rail unit 110 ) consisting of a guide rail 100;
The bogie body 211a disposed in front of the rail unit 110 so as to be orthogonal to the rail unit 110, and movably coupled to the rail unit 110 to connect the rail unit 110 and the bogie body 211a to each other. A bogie 211 comprising a connecting roller 211b and a shelf 211c extending from the upper end of the bogie body 211a toward the front;
A bolt 212a that is fastened through the bogie body 211a, is interconnected with the bolt 212a, and is reciprocally moved by the bolt 212a to be in close contact with the wall 1a or spaced apart from the wall 1a to form the bogie 211 ) a moving unit 210 composed of a brake 212 composed of a friction plate 212b for limiting the movement,
One end is hinged to the lower end of the bogie body (211a), the side of the base 221 is formed with a pin coupling hole (221a) along the longitudinal direction so that the pin (P) can be detachably fitted;
It is disposed on the upper part of the other end of the base 221 and is hingedly connected to the base 221, and the upper surface is provided with a wire seating groove 222a recessed in a semicircular shape along the longitudinal direction so that the underground distribution cable L can be seated and mounted. wire holder (222),
One end is hingedly connected to the wire holder 222, and the other end is movably disposed on the base 221 and fixed to the base 221 via a pin (P) so that the wire holder 222 can be maintained horizontally. Link bar 223 to support,
A wire mounting unit 220 consisting of a hanger 224 installed on the lower surface of the other end of the base 221 in the same direction as the rail 110,
The first guide rail 231 extending downward from the lower end of the bogie body 211a, the second guide rail 232 installed in the longitudinal direction of the lower surface of the base 221, and the first guide rail 231 are movable on the first guide rail 231 . A first moving block 233 coupled to the second moving block 234 movably coupled to the second guide rail 232, both ends of the first moving block 233 and the second moving block 234, respectively A tray assembly ( 200);
An electric motor 310 installed on the shelf 211c, a drum 320 rotating in a forward and reverse direction by the electric motor 310, a traction line 330 that is wound or unwound by the rotation of the drum 320, and a traction line 330 ) connected to the hook 340 which is detachably installed on the hanger 224, and rotates the wire mounting unit 220 around the hinge point to adjust the angle of the base 221 retractor 300;
a fire detection sensor 400 installed on the bogie body 211a to detect a fire;
a control unit 500 receiving a fire detection signal from the fire detection sensor 400 and outputting a fire hydrant operation signal;
Equipped with an injection valve 610 that is operated and controlled by the fire hydrant operation signal from the control unit 500, the fire extinguishing liquid installed on the shelf 211c and filled therein is sprayed into the fire area through the injection valve 610 to extinguish a fire. An underground distribution line tray having an underground distribution state inspection function, characterized in that it includes a fire extinguisher 600 for suppressing the fire.

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