KR102316192B1 - Connection device for safe connection of underground distribution line for convenient inspection work - Google Patents

Abstract

A connection device for safe connection of an underground distribution line for convenient inspection work comprises: a wire support (100) installed at a sidewall of a power bulb (T) through a fixture (e.g., anchor bolt); a connector (200) detachably installed at the wire support (100) to connect and fix underground distribution lines (L) with each other; a fire extinguisher (300) received in the wire support (100) to flow out fire extinguishing drug when the fire extinguisher (300) is destroyed; a fire sensor (400) to detect fire; first and second solenoids (500, 600) to control a guide plate (130) of the wire support (100) and to destroy the fire extinguisher (300); a stop switch (700) to output a stop signal when the fire extinguisher (300) is destroyed; and a controller (800) to control operations of the first and second solenoids (500, 600). The present invention is very useful since the present invention can electrically connect underground distribution lines with each other using a connector. In particular, the separation of lead-in underground distribution lines is limited by a separation limiting projection so that a separate fixture for fixing the underground distribution lines is not necessary.

Description

Connection device for safe connection of underground distribution line for convenient inspection work

The present invention relates to a connection mechanism for safe connection of an underground distribution line, which is convenient for inspection work.

In general, a tunnel-type common area is provided underground, and transmission/distribution cables and communication 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, numerous multi-stage hangers are installed on the inner wall of the tunnel type cavity.

By using such a hanger, the 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 capable of installing a power transmission cable.

In the device for installing the power transmission cable, a vertical frame, which is a rectangular tube vertically positioned vertically, is formed on the inner surface of the underground cavity, and upper and lower fixing plates fixed by anchor bolts are formed on the upper and lower sides, respectively. It is provided with a cable support frame, which is an insulating member in which a support is formed to protrude downward from the side surface and has a plurality of semicircular cable grooves in which the power transmission cable is seated at regular intervals on the upper surface.

However, since the conventional devices as described above have a closed space, when a fire occurs in the electric wire installed in the support mechanism, it is not easy to check it from the outside, and it is difficult to extinguish the fire in the initial stage.

1. Republic of Korea Patent No. 10-0985559

The present invention can easily and conveniently interconnect underground distribution lines installed in electric power outlets, while quickly suppressing surrounding areas when an abnormality such as a fire is detected. The purpose is to provide a connection mechanism for the safety connection of distribution lines.

The present invention for achieving the above object,

It is fixed to the side wall of the electric power bulb, and forms a stepped step shape that slopes downward as it goes away from the side wall, and a semicircle recessed seating part is integrally formed on the horizontal plane forming the step, and a stopper protruding from the inner circumferential surface is integrally formed in the seating part. Rail grooves are integrally formed on the vertical surface forming the stairs, and guide portions that are inclined downward from one side to the other side and communicate with the interior are integrally formed on both sides, and the exit ports communicating with the interior are integrally formed on the vertical surfaces of the distal ends forming the stairs. Integrated stair-type seating platform,

A body formed integrally with the horizontal surface of the front end of the step-type seating table, the inside of which is opened upward, and a body consisting of a receiving box provided with a discharge port through which the extinguishing agent is discharged at the lower side;

A cover that is openably installed on the upper surface of the housing of the main body;

A guide plate that is accommodated in the main body so that it can be inserted and detached through the outlet of the main body, one end is supported by an idler built into the main body, and a guide plate provided on both sides of the other end with engaging projections movably fitted to the guide portion of the main body;

An arc-shaped support installed side by side in the housing of the main body to support the fire extinguisher, one end of the arc-shaped detainer that is rotatably installed on the support through a shaft pin to pressurize and fix the fire extinguisher, one end is installed in the housing and the other end is an arc A fire extinguisher holder installed at the other end of the detention port of the shape and composed of a spring that pulls the detention port;

Formed in a rectangular parallelepiped shape, an arc-shaped fitting part recessed in a sector shape with a central angle of 90˚ at one corner is integrally formed to face the outer circumferential surface of the insulating tube, and a body part with a downwardly inclined inclined part on the upper surface, on the other side of the arc-shaped fitting part an electric wire support comprising a rail that is integrally formed on one surface of the body portion to be positioned and is detachably slide-coupled to the rail groove, and a fixed block consisting of a stepped portion protruding upward from both ends of the upper surface of the body portion;

An insulating tube through which an underground distribution line is drawn in through both ends, and which is placed on the seating part and mutually coupled with the stopper through the stopper coupling part formed on the outer circumferential surface;

A connector that is built into an insulating pipe to electrically interconnect the underground distribution lines introduced through both ends of the insulating pipe, and a connector composed of a conductive pipe having a plurality of departure limiting projections integrally formed on the inner circumferential surface to limit the departure of the incoming underground distribution line;

A glass fire extinguisher that is detachably installed on the fire extinguisher holder and filled with an extinguishing agent;

a fire detection sensor installed on a wire support to detect a fire and output a fire detection signal;

a first solenoid equipped with a rod for opening and closing the outlet and installed on the wire support to control the guide plate being drawn out through the outlet;

A second solenoid equipped with a reciprocating rod and installed on the wire support to strike the fire extinguisher with a rod so that the extinguishing agent filled in the fire extinguisher can be discharged through the outlet;

a stop switch installed on the wire support and in contact with the detention port pulled by a spring to output a stop signal;

The first solenoid is operated and controlled so that the outlet closed by the rod is opened by receiving the fire detection signal from the fire detection sensor, and the second solenoid is operated and controlled so that the fire extinguisher is destroyed by the blow of the rod, but the stop signal from the stop switch It characterized in that it includes; a control unit for controlling the operation of the second solenoid so that the load of the second solenoid hits the fire extinguisher until the input.

The present invention is very useful because it can electrically interconnect underground distribution lines using a connector, and in particular, since separation of the incoming underground distribution lines is limited by the departure limiting protrusion, a separate fixing means for fixing the underground distribution lines is unnecessary. There is an advantage.

In addition, since the connector placed on the seating portion of the main body is mutually coupled with the stopper via the stopper coupling portion and is fixed by a fixing block that is slide-coupled to the main body, there is an advantage that the movement of the connector can be more reliably restricted.

In addition, when the connector is inspected, if the fixed block coupled to the main body is moved by sliding, it is easily separated, thereby making the inspection work convenient.

In addition, when an abnormality such as a fire is detected, the surrounding area can be suppressed quickly, protecting the underground distribution line from damage caused by fire. There is an advantage that can greatly improve the convenience of

1 is a combined perspective view of a connection mechanism for safe connection of an underground distribution line for convenient inspection work according to the present invention.
2 is an exploded perspective view of a connection mechanism for safe connection of an underground distribution line for convenient inspection according to the present invention;
Figure 3 is a coupling cross-sectional view of the connection mechanism for safe connection of the underground distribution line for convenient inspection work according to the present invention.
4A and 4B are a partial perspective view and a side cross-sectional view showing a partial configuration including a housing in a connection mechanism for safe connection of an underground distribution line, which is convenient for inspection work according to the present invention.
5 is a cross-sectional view showing a separately extracted fixing block from a connection mechanism for safe connection of an underground distribution line for convenient inspection according to the present invention.
6A and 6B are a perspective view and a cross-sectional view showing a connector separately extracted from a connection mechanism for safe connection of an underground distribution line for convenient inspection according to the present invention.
7 is a block diagram showing the correlation between each component in the connection mechanism for safe connection of the underground distribution line for convenient inspection work according to the present invention.
8A to 8F are views for explaining the connection and operation of an underground distribution line using a connection mechanism for a safe connection of an underground distribution line for convenient inspection work 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 connection mechanism for safe connection of an underground distribution line for convenient inspection work according to the present invention, and FIG. 2 is an exploded perspective view of a connection mechanism for safety connection for an underground distribution line for convenient inspection according to the present invention is a combined cross-sectional view of a connection mechanism for a safety connection of an underground distribution line that is convenient for inspection according to the present invention, and FIGS. It is a partial perspective view and a side cross-sectional view showing a part of the configuration separately, and FIG. 5 is a cross-sectional view showing a fixing block separately from a connection mechanism for safe connection of an underground distribution line that is convenient for inspection according to the present invention, FIGS. 6a and 6b are It is a perspective view and a cross-sectional view showing a connector separately extracted from a connection mechanism for safe connection of an underground distribution line that is convenient for inspection work according to the present invention, and FIG. It is a block diagram showing the correlation between elements.

1 to 7, the connection mechanism for safe connection of the underground distribution line, which is convenient for inspection work according to the present invention, is a wire support 100 and a connector 200, a fire extinguisher 300, a fire detection sensor 400, As composed of a first solenoid 500, a second solenoid 600, a stop switch 700, and a control unit 800, according to this, it is possible to easily and conveniently interconnect the underground distribution line (L) installed in the electric power sphere (T). There is a technical feature that can safely protect the underground distribution line (L) from damage caused by fire by quickly suppressing the surrounding area when an abnormality such as a fire is detected.

The electric wire support 100 is composed of a main body 110, a cover 120, a guide plate 130, a fire extinguisher holder 140, a fixing block 150, and an idler 160. In this embodiment, the electric power outlet (T) ) serves to fix the connector 200, which is installed and seated on the side wall through a fixing means (eg, anchor bolt).

The main body 110 is composed of a step-type mounting base 111 and a receiving box 112 to support the underground distribution line (L), and provides a space in which the fire extinguisher 300 can be accommodated.

The step-type mounting base 111 is fixed to the side wall of the electric power tool T via a fixing means (eg, an anchor bolt).

The step-type seating table 111 has a stepped step shape that is inclined downward as it goes away from the side wall, and the inside is opened downward.

This step-type seating table 111 is integrally formed with a semi-circular recessed seating part 111a so that the connector 200 can be mounted on a horizontal surface forming a step, and the seating part 111a protrudes from the inner circumferential surface to be seated. The stopper 111b coupled to the stopper coupling portion 211 of the connector 200 is integrally formed.

Here, the stopper 111b is coupled to the stopper coupling portion 211 of the connector 200 to limit the left and right movement of the connector 200 .

Subsequently, the rail groove 111c is integrally formed on the vertical surface forming the stairs, and the rail 152 of the fixing block 150 is slide-coupled to the rail groove 111c and placed on a horizontal surface.

In addition, a guide portion 111d that is inclined downward from one side to the other side and communicates with the inside is integrally formed on both sides of the step-type seating table 111, and the guide plate 130 is integrally formed on the guide portion 111d. The projection 131 is movably coupled.

In addition, an outlet 111e communicating with the inside is integrally formed on the vertical surface of the distal end of the step-type seating table 111, and the guide plate 130 protrudes and protrudes through the outlet 111e.

The accommodating box 112 is integrally formed on the horizontal surface of the front end of the step-type seating table 111 .

The accommodating box 112 thus formed is opened upwardly inside so that the fire extinguisher holder 140 and the fire extinguisher 300 can be accommodated. 300) to allow the extinguishing agent to be discharged to the outside.

For reference, the extinguishing agent discharged through the discharge port 112a flows down the stairs of the step-type seating table 111 and drips from the end, and if the guide plate 130 protrudes in this process, it is extinguished by the guide plate 130 The chemical is induced and delivered to the wire support 100 installed on the opposite side.

The cover 120 is installed to be opened and closed on the upper surface of the housing 112, for this purpose, a protrusion groove is integrally formed on the upper surface of the housing 112, and the lower surface of the cover 120 corresponds to the protrusion groove. The projections are integrally formed.

The housing 112 and the cover 120 are coupled to each other through the protrusion groove and the protrusion.

The guide plate 130 is a plate having a predetermined width and thickness, and is built into the main body 110, more specifically, the step-type mounting base 111. By the idler 160 disposed adjacent to the outlet 111e. One end is supported.

The guide plate 130 installed in this way protrudes and retracts through the outlet 111e.

In addition, coupling protrusions 131 are formed on both sides of the other end of the guide plate 130 , and the coupling protrusions 131 are movably coupled to the guide part 111d, and if necessary, instead of the coupling protrusions 131 . Screw bolts may also be applied.

The guide plate 130 drawn out through the outlet 111e prevents the guide plate 130 from being drawn out any more when the coupling protrusion 131 is caught at the end of the guide part 111d, so that the guide plate 130 is completely separated from the body 110. made to prevent it.

The fire extinguisher holder 140 is built into the housing 112 of the main body 110 to elastically press the fire extinguisher 300 , and includes a support 141 , a retainer 142 , and a spring 143 .

The support 141 is a member manufactured in an approximately arc shape, and is installed side by side in the accommodation box 112 to support the fire extinguisher 300 together with the detention port 242 .

The detention port 142 is a member manufactured in an approximately arc shape, and one end is rotatably installed at the distal end of the support 141 via the shaft pin P to press and fix the fire extinguisher 300 .

The spring 143 is a conventional coil spring, which is built into the housing 112 , one side is installed on the inner surface of the housing 112 , and the other end is installed at the other end of the detention port 142 .

As an example, when the detaining port 142 is rotated around the shaft pin P to accommodate the fire extinguisher 300 inside, the spring 143 is tensioned while pulling the detaining port 142 in the opposite direction, Accordingly, the fire extinguisher 300 is pressurized and fixed by the detention port 142 .

When the fire extinguisher 300 is destroyed by an external force (the rod of the second solenoid), the detention port 142 is rotated about the shaft pin P by the restoring force of the spring 143 and the inner surface of the housing 112 is rotated. will press

For reference, the stop switch 700 is installed to be exposed on the inner surface of the receiving box 112 facing one end of the detention port 142, and the stop switch 700 is a detention port rotated by a spring 143 ( 142) and output a stop signal to the control unit 800 .

The fixing block 150 is composed of a body portion 151, a rail 152, and a stepped portion 153. In this embodiment, the fixing block 150 is detachably slide-coupled to the body 110 and seated on the seating portion 111a. It serves to hold the insulating tube 210 of the connector 200 .

The body portion 151 is a member forming a substantially rectangular parallelepiped shape, and an arc-shaped fitting portion 151a recessed in a sector shape having a central angle of 90° is integrally formed at one corner, and a downwardly inclined inclined portion 151b is formed on the upper surface. is provided integrally.

Here, the arc-shaped fitting portion 151a serves to hold the insulating tube 210 of the connector 200 together with the seating portion 111a.

In addition, the rail 152 is integrally formed on one surface of the body portion 151, and is located on the opposite side of the arc-shaped fitting portion 151a.

Here, the rail 152 is detachably slide-coupled to the rail groove 111c, and serves to interconnect the step-type mounting base 111 and the body portion 151 .

The stepped portion 153 protrudes upward from both ends of the upper surface of the body portion 151 and serves to guide the fire extinguishing liquid flowing along the inclined portion 151b to flow to the end of the body 110 .

The connector 200 is composed of an insulating pipe 210 and a conductive pipe 220, and in this embodiment serves to electrically interconnect and fix the underground distribution line L drawn in through both ends.

The insulating tube 210 is made of an insulating material, and a stopper coupling part 211 is integrally formed on the outer peripheral surfaces of both ends, and the stopper coupling part 211 is a ring-shaped groove.

The stopper coupling part 211 is mutually coupled to the stopper 111b formed on the seating part 111a, whereby the connector 200 is restricted from moving left and right.

And as the fixing block 150 is slide-coupled to the rail groove 111c via the rail 152 , the connector 200 is more firmly fixed by the fixing block 150 .

The conductive pipe 220 is installed inside the insulating pipe 210 by insert molding.

The conductive tube 220 is made of a conductive material, and a plurality of separation limiting projections 221 are integrally formed on the inner circumferential surface.

The underground distribution lines L introduced into the conductive pipe 220 are electrically interconnected, and the departure is restricted by the departure limiting protrusion 221 .

The fire extinguisher 300 is a fire suppression mechanism in which a glass material is filled with an extinguishing agent. In this embodiment, the fire extinguisher 300 is accommodated in the housing box 112 and is detachably installed on the fire extinguisher holder 140 .

As described above, the fire extinguisher 300 installed on the fire extinguisher holder 140 is easily destroyed by an external force (load of the second solenoid) and spills the extinguishing agent, and the leaked extinguishing agent is discharged from the discharge port 112a of the container 112. It is discharged to the outside through the , and the extinguishing agent discharged in this way flows along the step-type mounting table 111 to quickly extinguish the fire that occurred in the underground distribution line (L).

In the case of the extinguishing agent, since it is a well-known technique in the relevant field (liquid filled in a throwing type fire extinguisher), a detailed description thereof will be omitted.

The fire detection sensor 400 is a known heat detection sensor installed in the receiving box 112 of the electric wire support (100).

As an example, when a fire occurs due to an electrical short due to a rodent (rat) or a fire occurs due to contact with a current flowing wire due to infiltration of water into the inside of the covered wire that has lost its protective function due to aging, the fire detection sensor 400 ) detects heat and outputs a fire detection signal to the control unit 800 .

The first solenoid 500 is operation-controlled by the control unit 800, and in this embodiment, it is built-in to the wire support 100, and serves to regulate the guide plate 130 being drawn out through the outlet 111e. .

The first solenoid 500 opens and closes the take-out port 111e by reciprocating the rod 510 by the operation signal of the control unit 800, and thus the guide plate 130 moves in and out through the take-out port 111e. will be limited

For example, in normal times, the rod 510 of the first solenoid 500 closes the withdrawal port 111e to limit the extraction of the guide plate 130 , but when operated by the control unit 800 , the rod 510 protrudes. As is drawn into the interior of the first solenoid 500, the outlet 111e is opened, and accordingly, the guide plate 130 is exposed to the outside through the outlet 111e.

The second solenoid 600 is operation-controlled by the control unit 800, and in this embodiment, it is installed in the receiving box 112 of the electric wire support 100 so as to be disposed adjacent to the fire extinguisher 300 to operate the fire extinguisher 300. It strikes and destroys.

For example, in normal times, the rod 610 is drawn into the inside of the second solenoid 600 , but when operated by the control unit 800 , the rod 610 , which has been drawn in, rapidly protrudes and strongly strikes the fire extinguisher 300 . As a result, the extinguisher 300 is destroyed and the extinguishing agent contained therein flows out.

The stop switch 700 is a well-known push switch, and in this embodiment, it is built into the housing 112 and outputs a stop signal to the control unit 800 by mutual contact (pressed) with the fire extinguisher holder 140. do.

As an example, when an operation signal from the control unit 800 is applied to the second solenoid 600 in a state where the fire extinguisher 300 is mounted on the fire extinguisher holder 140 , the second solenoid 600 is inserted into the rod. The fire extinguisher 300 is hit by protruding 610 , and the fire extinguisher 300 is destroyed by the rod 610 and the extinguishing agent liquid flows out.

When the fire extinguisher 300 is destroyed as described above, the retaining port 142 of the fire extinguisher holder 140 is rotated around the shaft pin P by the restoring force of the spring 143 to press the stop switch 700, and stop The switch 700 outputs a stop signal to the control unit 800 , and the control unit 800 receives the stop signal and no longer outputs an operation signal to the second solenoid 600 .

On the other hand, if the fire extinguisher 300 is not destroyed despite the blow of the rod 610 , the control unit 142 will not press the stop switch 700 until a stop signal is input from the stop switch 700 . Reference numeral 800 repeatedly controls the operation of the second solenoid 600 .

According to this embodiment, it is possible to induce a certain destruction of the fire extinguisher 300 using the stop switch 700, so there is an advantage in that it is possible to prevent operation errors and greatly improve the convenience of management.

The control unit 800 is a kind of controller, and in this embodiment, receives a fire detection signal from the fire detection sensor 400 and operates the first solenoid 500 so that the outlet 111e closed by the rod 510 is opened. The second solenoid 600 is operated and controlled so that the fire extinguisher 300 can be destroyed by the blow of the rod 610, but the second solenoid 600 is inputted from the stop switch 700 until a stop signal is input. It serves to control the operation of the second solenoid 600 so that the rod 610 of the fire extinguisher 300 strikes.

8A to 8F are views for explaining the operation of the connection mechanism for safe connection of the underground distribution line for convenient inspection work according to the present invention, which will be described with reference to the following.

Referring to FIGS. 8A and 8B , the electric wire support 100 is fixed to the sidewall of the electric power tool T through a fixing means (eg, an anchor bolt).

And the underground distribution line (L), whose coating is removed from one end, is drawn in through both ends of the connector 200 to be electrically interconnected through the conductive pipe 220 .

When the underground distribution line (L) is interconnected via the connector 200 as described above, the connector 200 is seated on the seating part 111a of the step-type mounting base 111 constituting the wire support 100. The stopper coupling protrusion 211 and the stopper 111b of the connector 200 are coupled to each other.

Then, the rail 152 of the fixing block 150 is slide-coupled to the rail groove 111c of the step-type mounting base 111 .

As described above, since the connector 200 is fixed by the fixing block 150 in a state coupled to the stopper 111b via the stopper coupling protrusion 211, it is more firmly fixed.

Referring to Figure 8c, on the other hand, when a fire occurs in the underground distribution line (L) in a state in which the underground distribution line (L) is installed in the electric wire support 100 via the connector 200, it is a fire detection sensor (400) is detected and outputs a fire detection signal to the control unit 800, and the control unit 800 receives the fire detection signal to control the operation of the first solenoid 500 and the second solenoid 600, respectively.

Referring to FIG. 8D , when the operation signal of the control unit 800 is applied to the first solenoid 500 in a state where the rod 510 of the first solenoid 500 closes the outlet 111e, the protruding As the rod 510 is drawn into the inside of the first solenoid 500 , the outlet 111e is opened.

As the outlet 111e is opened, the guide plate 130 slides by its own weight and is exposed to the outside through the outlet 111e.

Referring to FIG. 8E , when the operation signal of the control unit 800 is drawn into the second solenoid 600 in a state in which the rod 610 of the second solenoid 600 is drawn in, the retracted rod 610 . is rapidly protruding and strongly strikes the fire extinguisher 300 mounted on the fire extinguisher holder 140, thereby destroying the fire extinguisher 300 and leaking the contained fire extinguishing agent.

And when the fire extinguisher 300 is destroyed, the retaining port 142 of the fire extinguisher holder 140 is rotated about the shaft pin P by the restoring force of the spring 143 to press the stop switch 700, and it stops The switch 700 outputs a stop signal to the control unit 800 , and the control unit 800 receives the stop signal and no longer outputs an operation signal to the second solenoid 600 .

However, if the fire extinguisher 300 is not destroyed despite the blow of the rod 610, the detention port 142 will not press the stop switch 700, so the control unit ( 800) controls the operation of the second solenoid 600 repeatedly, and it is possible to induce a certain destruction of the fire extinguisher 300 by such an action, thereby greatly improving the prevention of operation errors and the convenience of management.

Continuingly, referring to FIG. 8f, the extinguishing agent leaked from the fire extinguisher 300 is discharged through the outlet 112a of the housing 112 constituting the wire support 100, and the extinguishing agent discharged in this way is fixed. As it flows along the inclined portion 151b of the block 150, the fire of the underground distribution line L is quickly extinguished.

In addition, the fire extinguishing liquid falling from the end of the step-type mounting bracket 111 constituting the wire support 100 is guided by the guide plate 130 protruding to the outside and delivered to the opposite underground distribution line support device.

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.

100: electric wire support 110: body 111: step-type mounting bracket
111a: seating part 111b: rail groove 111c: guide part
111d: outlet 112: receiving box 112a: outlet
120: cover 130: guide plate 131: coupling projection
140: fire extinguisher holder 141: support 142: detention port
143: spring 150: fixed block 151: body portion
151a: arc-shaped fitting portion 151b: inclined portion 152: rail
153: step 160: idler 200: connector
210: insulation tube 220: conductive tube 300: fire extinguisher
400: fire detection sensor 500: first solenoid 510: rod
600: second solenoid 610: rod 700: stop switch
800: control unit

Claims (1)

It is fixed to the sidewall of the electric power tool (T), and as it goes away from the sidewall, it forms a stepped step shape that is inclined downward. ), a stopper 111b protruding from the inner circumferential surface is integrally formed, and a rail groove 111c is integrally formed on a vertical surface forming a step, and on both sides a guide part that slopes downward from one side to the other and communicates with the inside. (111d) is integrally formed, the vertical surface of the distal end forming the step is integrally formed with an outlet (111e) communicating with the inside step-type seating table 111,
The main body 110, which is integrally formed on the horizontal surface of the front end of the step-type seating table 111, and consists of a receiving box 112 having an inner opening upward and a discharge port 112a through which the extinguishing agent is discharged at the lower side;
A cover 120 that is operably installed on the upper surface of the housing 112 of the main body 110, and
It is accommodated in the main body 110 so that it can be inserted and detached through the outlet 111e of the main body 110 , one end is supported by an idler 160 built into the main body 110 , and is movable in the guide portion of the main body 110 . A guide plate 130 provided on both sides of the other end with a coupling protrusion 131 that is tightly fitted;
An arc-shaped support 141 that is installed side by side in the housing 112 of the main body 110 to support the fire extinguisher 300, one end of which is rotatably installed on the support 141 via the shaft pin (P). A spring ( 143) and a fire extinguisher holder 140 consisting of,
Doedoe forming a rectangular parallelepiped shape, an arc-shaped fitting portion 151a recessed in a sectoral shape with a central angle of 90° at one corner is integrally formed to face the outer circumferential surface of the insulating tube 210, and an inclined portion 151b inclined downward to the upper surface ) is provided on the body portion 151, the rail 152 that is formed integrally on one surface of the body portion 151 to be positioned on the opposite side of the arc-shaped fitting portion 151a and is detachably slide-coupled to the rail groove 111c, the body a wire support 100 consisting of a fixing block 150 made of a stepped portion 153 protruding upward from both ends of the upper surface of the portion 151;
The underground distribution line (L) enters through both ends, and the insulating tube 210 is placed on the seating portion 111a and coupled to the stopper 111b through the stopper coupling portion 211 formed on the outer circumferential surface as a medium;
It is built into the insulating pipe 210 and electrically interconnects the underground distribution lines L introduced through both ends of the insulating pipe 210, and a plurality of separations on the inner circumferential surface to limit the departure of the incoming underground distribution lines L a connector 200 including a conductive tube 220 having a limiting protrusion 221 integrally formed therewith;
a glass fire extinguisher 300 that is detachably installed on the fire extinguisher holder 140 and filled with a fire extinguishing agent;
a fire detection sensor 400 installed on the wire support 100 to detect a fire and output a fire detection signal;
a first solenoid 500 equipped with a rod 510 for opening and closing the outlet 111e and installed on the wire support 100 to control the guide plate 130 being drawn out through the outlet 111e;
Equipped with a reciprocating rod 610 and installed on the wire support 100, the fire extinguisher 300 is struck with the rod 610 so that the extinguishing agent filled in the fire extinguisher 300 can be discharged through the outlet 112a. Breaking the second solenoid (600);
a stop switch 700 installed on the wire support 100 and in contact with the detention port 142 pulled by the spring 143 to output a stop signal;
By receiving the fire detection signal from the fire detection sensor 400, the first solenoid 500 is operated and controlled so that the outlet 111e closed by the rod 510 is opened, and the fire extinguisher 300 is struck by the rod 610. ) is operated to control the second solenoid 600 to be destroyed, but until a stop signal is input from the stop switch 700, the second solenoid so that the rod 610 of the second solenoid 600 strikes the fire extinguisher 300 Control unit 800 for controlling operation (600); connection mechanism for safe connection of an underground distribution line for convenient inspection work, characterized in that it includes.

Images