KR102206597B1 - Tray apparatus for supporting underground distribution lines - Google Patents

Abstract

The present invention relates to a tray apparatus for supporting underground distribution lines. The tray apparatus for supporting underground distribution lines comprises: a tray body (100) installed at a power bulb to provide a space in which a ground distribution lines (L) are installed; a connector (200) installed at the tray body (100) to electrically connect the ground distribution lines (L) to each other; a stopper member (300) movably installed at the tray body (100) to limit movement of the connector (200) together with the tray body (100); a short circuit detection assembly (400) installed at the tray body (100) for detecting short circuit to inform around. Therefore, when short circuit occurs due to coating damage of ground distribution lines or crack of a body, the short circuit detection assembly detects the short circuit to inform around. Accordingly, since a worker may see the light to intuitively recognize a current state, electric shock may be prevented and a maintenance work may be rapidly performed.

Description

Tray apparatus for supporting underground distribution lines}

The present invention relates to a tray mechanism for supporting an underground distribution line, and in more detail, it is possible to prevent an electric shock accident of a worker in advance by detecting a short circuit and notifying it to the surroundings, and an extension work because the underground distribution line can be easily and conveniently expanded. It relates to a tray mechanism for supporting an underground power distribution line that can greatly improve the convenience of.

In general, the undergroundization of overhead distribution lines in Korea began by relocating the electric poles along the main roads to the back alleys, and supplying neighboring customers from a pole transformer using low-voltage cables, and it is a trend that continues to expand.

The underground distribution line construction method can be largely divided into a direct sale type, a pipeline type, an old power type, and a bridge addition type.

Among them, the old power type is also called the culvert type or the copper diagram type, and the shelves are fixedly placed perpendicular to the floor surface by attaching the concrete structure to the left and right side walls of the concrete structure made by joining the concrete structure in the ground like a pipe. do.

However, in such an old-fashioned construction, simply because the shelves are fixed in layers from the inside of the concrete structure to the walls on both sides of the concrete structure, when water leakage occurs in the concrete structure, infiltration water flows along the shelves installed on both side walls, causing a short circuit or short circuit in the underground distribution line. There was a problem of becoming, and if this situation was repeated continuously, oxidation was promoted, and the life of the underground distribution line was shortened.

In order to solve some of these conventional problems, there is Patent Registration No. 10-1505061. In this case, when moisture is generated due to the inflow of sewage into the concrete structure, heated air is sprayed to dry it, according to the temperature change of the underground distribution line. A technique is disclosed for blocking the short circuit from occurring.

However, in the conventional patent, it was difficult to confirm the electric leakage caused by the peeling of the cover of the underground distribution line, and in the end, if the operator approaches for maintenance without recognizing this problem, the risk of electric shock due to electric leakage is significant. It can be said that it contains a problem.

1. Korean Patent Registration No. 10-1980884 (2019.05.15)

The present invention was conceived to solve the above problems, and by detecting a short circuit and notifying it to the surroundings, electric shock accidents of workers can be prevented in advance, and the underground distribution lines can be easily and conveniently expanded, so that the convenience of extension work The purpose is to provide a tray mechanism for supporting underground distribution lines that can be greatly improved.

The present invention for achieving the above object,

They are arranged side by side and one of them is a side rail fixed to the wall of the power outlet, and a rung that is arranged between the side rails so that both ends face the inner surface of the side rail, and is fixed to the side rail through a fastening means to support the underground distribution line. And, a tray main body composed of an insulating cover mounted on one end of the rung, fixed to the side rail through a fastening means, and having a plurality of first coupling protrusions;

It has a rectangular parallelepiped shape as a whole, but wire entry holes are formed on both sides to allow underground distribution lines to enter the inside, and conductive rod guide holes are formed in the front and rear directions perpendicular to the wire entry hole, based on the conductive rod guide hole. A body of insulating material formed to pass through the guide holes opposite to each other,

A conductor that has a conductive rod coupling hole that communicates with the conductive rod guide hole and is accommodated in the body and electrically interconnects the underground power distribution line introduced through the wire entry hole;

A switch box consisting of a rectangular tube-shaped frame that is fitted to the body so as to be movable back and forth, but the inner width is relatively wider than the width of the body, and a partition with a conductive rod mounting hole that is built into the frame and divides the inner space of the frame,

A conductive rod that is installed in the conductive rod mounting hole and the inside is opened to the outside through the conductive rod mounting hole, and is inserted into the conductive rod guide hole and the conductive rod coupling hole so as to be movable back and forth to be electrically interconnected with the conductor,

A guide rod that extends from the front of the partition and is movably inserted into the guide hole to limit the separation of the switch box;

It is divided and arranged at the rear of the partition to face each other based on the conductive rod mounting hole, and is installed in the switch box so as to be rotated and lifted through the shaft pin to pressurize and fix the outer circumferential surface of the underground power distribution line through the wire holding unit,

A connector composed of a spring that is inserted into the shaft pin so as to be disposed between the frame and the wire pressure port to elastically support the wire pressure port in one direction;

Close contact having a tubular moving member that is slidably fitted to the outer surface of the rung, and a second coupling protrusion made of rubber that extends upward from the moving member and is abutted to the wire pressure port and is removably fitted to the wire holding part. A stopper member composed of a plate;

An earth leakage detection assembly consisting of an earth leakage detection sensor installed in the tray body to detect a leakage current, a controller receiving a detection signal from the earth leakage detection sensor and controlling the operation of the warning light unit, and a warning unit that is controlled by the control unit to emit light to the surroundings; It characterized in that it comprises a.

According to this embodiment, when a short circuit occurs due to a cover damage of an underground power distribution line or a crack in the body, the electrical leakage detection assembly detects the electrical leakage and informs the surrounding area, so that the operator can intuitively recognize the current state by looking at the light, resulting in an electric shock accident. There is an advantage that it can be prevented in advance, as well as quick repair work.

In addition, there is an advantage that the extension work becomes very convenient because it can be easily and conveniently connected through a connector when extension of an underground distribution line is required.

1 is a perspective view of a combination of a tray mechanism for supporting an underground distribution line according to the present invention.
2 and 3 are different exploded perspective views of the tray mechanism for supporting an underground distribution line according to the present invention.
4A and 4B are an exploded perspective view and a top cross-sectional view showing an extract of a connector from the tray mechanism for supporting an underground distribution line according to the present invention.
Figure 5 is a block diagram showing the interconnection relationship between each component in the tray mechanism for supporting the underground distribution line according to the present invention.
6A to 6C are views for explaining a state of use of a tray mechanism for supporting an underground distribution line according to the present invention.
7A to 7C are views for explaining another example of use of the tray mechanism for supporting an underground distribution line according to the present invention.

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

1 is a combined perspective view of a tray mechanism for supporting an underground distribution line according to the present invention, FIGS. 2 and 3 are different exploded perspective views of a tray mechanism for supporting an underground distribution line according to the present invention, and FIGS. 4A and 4B are It is an exploded perspective view and a top cross-sectional view showing an extract of a connector from the tray mechanism for supporting an underground distribution line according to the present invention, and FIG. 5 is a block diagram showing the mutual relationship between each component in the tray mechanism for supporting an underground distribution line according to the present invention.

1 to 5, a tray mechanism for supporting an underground power distribution line according to an embodiment is composed of a tray body 100, a connector 200, a stopper member 300, and an electric leakage detection assembly 400, according to this By detecting a short circuit and notifying it to the surroundings, it is possible to prevent a worker's electric shock accident in advance, and the underground power distribution line (L) can be easily and conveniently extended, thus greatly improving the convenience of the extension work.

1 to 3, the tray body 100 is composed of a side rail 110, a rung 120, and an insulation cover 130, and in the case of this embodiment, it is installed in a power outlet (not shown) Provides a space for the distribution line (L) to be installed.

The side rail 110 is a member of a metal material having a'C' shape, and in this embodiment, it is spaced side by side, and any one of them is a fixing means (eg, anchor bolt) on the wall of the power outlet H as a medium. It is fixed.

The rung 120 is a member of a metal material, and in this embodiment, both ends are arranged between the side rails 110 so as to face the inner surface of the side rail 110, and the side rails are arranged through a fastening means (for example, a screw bolt). It is fixed to (110) and serves to support the underground distribution line (L).

The insulating cover 130 is a member of an insulating material, and in this embodiment, one end of the rung 120 is mounted on the upper surface and fixed to the side rail 110 or the rung 120 via a fastening means (for example, a screw bolt). .

In more detail, the insulating cover 130 has an overall shape of “C” and is coupled to face the front surface of the body 210 to prevent the conductive rod 240 from protruding to the outside.

In addition, the insulating cover 130 is inserted into the guide hole 113 of the body 210 to limit the movement of the guide rod 150 while allowing the insulating cover 130 and the body 210 to be coupled to each other. The coupling protrusions 131 are integrally formed, and for reference, the number of the first coupling protrusions 131 is the same as the guide hole 113 of the body 210.

1 to 4B, the connector 200 includes a body 210 and a conductor 220, a switch box 230, a conductive rod 240, a guide rod 250, a shaft pin 260, and an electric wire. It is composed of a pressurizing port 270 and a spring 280, in the case of the present embodiment serves to electrically interconnect the underground power distribution line (L).

The body 210 has a rectangular parallelepiped shape as a whole and is a member made of an insulating material.

Both sides of the body 210 are integrally formed with wire entry holes 211 so that the underground power distribution line L can be introduced into the inner side, and the inside of the body 210 is in the front and rear directions perpendicular to the wire entry hole 211. The conductive rod guide hole 212 is integrally formed.

In addition, a guide hole 213 is formed so as to pass through the upper and lower ends of the left and right sides of the conductive rod guide hole 212 in the same direction as the conductive rod guide hole 212. The inside of 213) is formed to be stepped, so that the end of the guide rod 250, which will be described later, is caught in the step so as to limit excessive movement.

Subsequently, in the wire entry hole 211, a tubular conductor 220 for electrically interconnecting the underground distribution line L drawn inwardly is installed, and the conductor 220 includes a conductive rod guide hole ( A conductive rod coupling hole 221 communicating with each other is formed integrally with the conductive rod coupling hole 221, and a conductive rod 240, which will be described later, is fitted to be moved back and forth to be electrically connected to each other.

Subsequently, the switch box 230 is composed of a frame 231 and a partition 232, and in this embodiment, it is installed to be movable back and forth on the rear circumferential surface of the body 210, and the frame 231 and the partition ( 232) is made integrally.

The frame 231 is a rectangular tube, and the upper and lower heights inside are the same as the upper and lower heights of the body 210, and the inner left and right widths are relatively wider than the left and right widths of the body 210, which will be described later. The wire pressure port 270 can be inserted between the body 210 and the frame 231 while the wire pressure port 270 bites the outer circumferential surface of the underground power distribution line (L). This is to make the outer circumference of the underground distribution line (L) bit stronger.

The partition 232 serves to divide the inner space that is built into the frame 231 so that the penetrating inner space is divided into the front and the rear. When the switch box 230 is moved forward in the front inner space of the frame 231 The rear end of the body 210 is accommodated, and the wire pressing port 270 is removably accommodated in the rear inner space of the frame 231.

In addition, the partition 232 is integrally formed with a conductive rod mounting hole 232a to which a conductive rod 240 to be described later is inserted and coupled, and the center of the conductive rod mounting hole 232a is a conductive rod guide hole 212 and It is located coaxially with the center of the conductive rod coupling hole 221.

Subsequently, the conductive rod 240 has one end installed in the conductive rod mounting hole 232a, and the other end is coupled to the conductive rod guide hole 212 and the conductive rod coupling hole 221 so as to be movable back and forth. 220) and electrically connected.

In addition, the inside of the conductive rod 240 is open to the rear, for example, the conductive rod 240 mentioned above with an end of the conductive rod 240 of the neighboring connector 200' (see high school 7a and 7c) They are electrically interconnected when inserted into the open holes in the.

Subsequently, the guide rod 250 extends from the partition 232 of the switch box 230 toward the body 210 and is installed to be movable back and forth in the guide hole 213. In particular, the front end of the guide rod 250 When the stepped portion provided in the guide hole 213 is caught in the stepped portion provided in the inside of the guide hole 213, the movement of the guide rod 250 is restricted, so that the switch box 230 is also limited in movement. It is possible to prevent in advance from being separated from the body 210.

Subsequently, the shaft pin 260 serves to interconnect the switch box 230 and the wire pressure port 270 with a round bar. In the present embodiment, the shaft pins 260 are disposed on the rear surface of the partition 232 and are respectively installed on the frame 231 to face each other with respect to the conductive rod mounting holes 232a.

Subsequently, the wire pressing port 270 is a plate divided up and down, and in the case of this embodiment, it is disposed at the rear of the partition 232 so as to face each other with respect to the conductive rod mounting hole 232a, and through the shaft pin 260 It is installed in the switch box 230 so as to be rotated and elevated, and serves to pressurize and fix the outer circumferential surface of the underground power distribution line L.

In particular, since the wire pressurization tool 270 must be able to be lifted and lowered without interference from the frame 231 in a state that is inserted into the shaft pin 260, the upper and lower edges of one side are formed to be stepped to a predetermined size.

In addition, the wire pressing port 270 is integrally formed with a circular wire holding part 271 in the middle of being butted to each other so as to wrap the outer circumferential surface of the underground distribution line L, and the inner circumferential surface of the wire holding part 271 Accordingly, a plurality of protrusions are integrally formed so that the underground power distribution line L can be pressed more reliably.

Subsequently, the spring 280 is inserted into the shaft pin 260 and serves to elastically support the wire pressing tool 270 in one direction.In this embodiment, one end is abutted to the wire pressing tool 270, and the other end It was installed so as to be abutted to the inner surface of the frame 231 so that the wire pressure port 270 is always kept in a butted state by the spring 280.

1 to 3, the stopper member 300 is composed of a moving member 310 of insulating material and a contact plate 320, and in this embodiment, it is fitted to be slidably moved to the outer surface of the rung 120. It serves to limit movement so that the connector 200 is not separated from the insulating cover 130.

The moving member 310 has a square tube shape corresponding to the outer surface of the rung 120 and is fitted to be slidably moved to the outer surface of the rung 120.

The contact plate 320 is a plate having a predetermined width and thickness, and extends upward from the moving member 310 and is abutted against the wire pressing port 370 to limit the movement of the connector 200.

In addition, the contact plate 320 is formed with a second coupling protrusion 321 made of a rubber material that is removably fitted to the wire holding portion 271 of the wire pressing tool 270, for reference, the second coupling protrusion 321 ) Is integrally fixed to the contact plate 320 through a conventional method (eg, heat fusion).

1 and 5, the earth leakage detection assembly 400 is composed of an earth leakage detection unit 410, a control unit 420, and a light warning unit 430, and is installed in the tray body 100 in the case of this embodiment. It detects a short circuit and informs the surroundings.

The earth leakage detection sensor 410 is installed on a part made of metal materials such as side rail 110 and rung 120 constituting the tray body 100, and when a leakage current is detected, the controller 420 Will be output as

The control unit 420 receives a detection signal from the electric leakage detection sensor 410 and controls the operation of the light warning unit 93.

The warning light unit 430 is controlled by the control unit 420 to emit light to the surroundings, and the operator can intuitively check whether there is a short circuit through the emitted light.

6A to 6C are views for explaining the state of use of the tray mechanism for supporting an underground power distribution line according to the present invention, and will be described with reference to this.

As shown in FIG. 6A, each of the stripped underground power distribution lines L is inserted into the wire entry hole 211 of the connector 200 to electrically connect each other through the conductor 220.

6B, when the installation work of the underground distribution line L is completed, the connector 200 is seated on the upper surface of the rung 120 of the tray main body 100, and then the insulating cover 130 and the connector 200 The body 210 of) is coupled to each other via the first coupling protrusion 131 and the guide hole 213.

6C, when the insulating cover 130 and the connector 200 are coupled to each other, the stopper member 300 is slid along the rung 120, and then the contact plate 320 is attached to the connector 200. The first coupling protrusion 321 of the contact plate 320 is in close contact with the wire pressure port 270, and in the process of the contact plate 320 being in close contact with the wire pressure port 270, the wire pressure port 270 It is fixed while being pressed into the wire holding portion 271 of.

On the other hand, when a short circuit occurs due to damage to the cover of the underground power distribution line L or a crack in the body 210 in the state installed as described above, the earth leakage detection sensor 410 installed in the tray main body 100 detects the leakage detection signal. Is output, and the control unit 420 receives the electric leakage detection signal from the electric leakage detection sensor 410 and controls the operation of the warning light unit 430, and the warning unit 430 is operated and controlled by the control unit 420 It emits light.

Accordingly, the operator can check the light emitted from the warning light unit 430 and intuitively recognize that there is a current short circuit, and can quickly perform the repair work.

7A to 7C are views for explaining another example of use of the tray mechanism for supporting an underground distribution line according to the present invention, and will be described with reference to this.

For reference, hereinafter, for convenience of description, the connector 200 to which the power is connected is referred to as the first connector 200, and the connector 200 ′ for extension of an underground distribution line electrically connected to the first connector 200 The description is divided into two connectors 200'.

7A to 7C, first, while maintaining the coupling of the insulating cover 130 and the first connector 200, the stopper member 300 is slid along the rung 120 to move the first connector ( It separates the stopper member 300 from the 200, and the wire pressure port 270 of the first connector 200 rotates about the shaft pin 260.

Then, each of the stripped underground power distribution lines L is inserted into the wire entry hole 211 of the second connector 200 ′ to electrically interconnect them through the conductor 220, and the second connector 200 ') intervenes between the first connector 200 and the stopper member 300 so as to be seated on the rung 120.

As described above, when the second connector 200 ′ is seated on the rung 120, the body 210 of the second connector 200 ′ is pushed through the wire pressure port 270, and the body of the second connector 200 ′ ( 210) The front end is fitted in the switch box 230 of the first connector 200.

When the 1 and 2 connectors 200 and 200 ′ are connected to each other as described above, the underground power distribution line L connected to the second connector 200 ′ by opening the wire pressing port 270 of the first connector 200 up and down will pressurize the wire. To be located on the sphere 270.

Then, when placing the wire pressure port 270 moved up and down, the spring 280 compressed by the wire pressure port 270 is restored by the restoring force and pushes the wire pressure port 270 in one direction, thereby Accordingly, the wire holding portion 271 of the wire pressing port 270 is pressed while surrounding the outer circumferential surface of the underground power distribution line L.

As described above, when the switch box 230 of the second connector 200 ′ is pushed toward the first connector 200 while the wire pressing port 270 is pressing the outer circumferential surface of the underground power distribution line L, the second The guide rod 250 of the connector 200 ′ is moved along the guide hole 213, and the conductive rod 240 is moved along the conductive rod guide hole 212 and the conductive rod coupling hole 221 to be finally removed. It is electrically connected while being drawn into the rear end of the conductive rod 240 of the first connector 200, and the first having an underground power distribution line L between the body 210 of the second connector 200' and the switch box 230 The wire pressure port 270 of the connector 200 is inserted.

The wire pressure port 270 is moved up and down in the process of being inserted and is brought into abutment, thereby more strongly pressing the outer circumferential surface of the underground distribution line L, and accordingly, is inserted into the second connector 200 ′. The underground distribution line (L) is firmly fixed by the wire pressure port 270 of the first connector (200).

When the final coupling of the 1 and 2 connectors 200 and 200 ′ is completed as described above, slide the stopper member 300 along the rung 120 and then move the contact plate 320 to the second connector 200 ′. The first coupling protrusion 321 of the contact plate 320 is in close contact with the wire pressure port 270, and in the process of the contact plate 320 being in close contact with the wire pressure port 270, the wire pressure port 270 It is fixed while being pressed into the wire holding portion 271 of.

The required underground distribution line (L) may be additionally expanded through the above method.

According to the present embodiment, when a short circuit occurs due to a cover damage of the underground power distribution line L or a crack in the body 210, the electrical leakage detection assembly 400 detects the electrical leakage and informs the surrounding area. It has the advantage of being able to intuitively recognize the electric shock and prevent an electric shock accident, as well as to be able to quickly proceed with repair work.

In addition, when extension of the underground power distribution line (L) is required, since it can be easily and conveniently connected through the connector 200, there is an advantage that the extension work becomes very convenient.

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

100: tray body 110: side rail 120: rung
130: insulating cover 131: first coupling protrusion 200: connector
210: body 211: wire entry hole 212: conductive rod guide hole
213: guide hole 220: conductor 221: conductive rod guide hole
230: switch box 231: frame 232: partition
240: conductive rod 250: guide rod 260: shaft pin
270: wire pressing port 271: wire holding portion 280: spring
300: stopper member 310: moving member 320: contact plate
321: second coupling protrusion 400: earth leakage detection assembly 410: earth leakage detection sensor
420: control unit 430: light warning unit

Claims (1)

The side rails 110 are arranged side by side and spaced apart from each other, and any one of them is disposed between the side rails 110 so that both ends face the inner surface of the side rails 110, and the side rails are arranged via a fastening means. The rung 120 is fixed to 110 to support the underground distribution line L, and is mounted on the top surface of one end of the rung 120 and fixed to the side rail 110 via a fastening means, and a plurality of first coupling protrusions 131 ) The tray body 100 consisting of an insulating cover 130 having;
It has a rectangular parallelepiped shape as a whole, but on both sides, a wire entry hole 211 is formed so that the underground power distribution line (L) can be inserted into the inside, and a conductive rod guide hole in the front and rear direction perpendicular to the wire entry hole 211 ( 212) is formed, the guide hole 213 is formed so as to face each other with respect to the conductive rod guide hole 212, the body 210 of an insulating material,
Conductive rod guide hole 212 and a conductive rod coupling hole 221 that communicates with each other to electrically interconnect the underground distribution line (L) received in the body 210 and introduced through the wire entry hole 211 With a sieve 220,
It is fitted to the body 210 so as to be movable back and forth, but the inner space of the frame 231 is installed in the rectangular tube-shaped frame 231 and the frame 231 formed to be relatively wider than the width of the body 210 A switch box 230 consisting of a partition 232 having a conductive rod mounting hole (232a) to partition the,
It is installed in the conductive rod mounting hole (232a), the inside is opened to the outside through the conductive rod mounting hole (232a), and is inserted into the conductive rod guide hole 212 and the conductive rod coupling hole 221 so as to be movable back and forth, and the conductor 220 A conductive rod 240 electrically interconnected with,
A guide rod 250 extending from the front surface of the partition 232 and movably fitted into the guide hole 213 to limit the separation of the switch box 230,
It is dividedly formed and disposed at the rear of the partition 232 so as to face each other based on the conductive rod mounting hole 232a, and is installed in the switch box 230 so as to be able to rotate and lift through the shaft pin 260, and the wire holding part 271 A wire pressure port 270 that pressurizes and fixes the outer peripheral surface of the underground power distribution line (L) through
A connector 200 composed of a spring 280 that is inserted into the shaft pin 260 so as to be disposed between the frame 231 and the wire pressure port 270 to elastically support the wire pressure port 270 in one direction;
A tubular moving member 310, which is slidably fitted to the outer surface of the rung 120, extends upward from the moving member 310, is abutted to the wire pressing port 370, and is inserted and removed in the wire holding part 271 A stopper member (300) composed of a contact plate (320) having a second coupling protrusion (321) made of rubber material to be fitted;
An earth leakage detection sensor 410 installed in the tray main body 100 to detect a leakage current, a controller 420 receiving a detection signal from the earth leakage detection sensor 410 and controlling the operation of the light warning unit 430, and a controller 420 ), the earth leakage detection assembly 400 consisting of a light warning unit 430 that is controlled to emit light to the surroundings; a tray mechanism for supporting an underground distribution line, comprising: a.

Images