KR102320241B1 - Underground distribution line protection device for both connection of underground distribution lines - Google Patents

Abstract

The present invention relates to an underground distribution line protection device functioning to connect underground distribution lines, which comprises: a supporter unit (100) installed by means of a fixing means such as an anchor bolt on a side wall of an underground tunnel (T); a connector (200) fixed removably to the supporter unit (100) to electrically connect underground distribution lines (L); a fire extinguisher (300) accommodated by the supporter unit (100) to be destroyed by a hitting mechanism (140) to discharge a fire extinguishing chemical; a fire detection sensor (400) detecting a fire; a guide plate detection sensor (500) built in the supporter unit (100) to detect a guide plate (130) and output a detection signal; a cutting mechanism (600) operating the hitting mechanism (140) in order to destroy the fire extinguisher (300); and a control unit (700) controlling operation of the cutting mechanism (600). In accordance with the present invention, the underground distribution lines built in an underground tunnel can be easily and conveniently connected to each other and, in particular, a fire will be rapidly detected to help suppress the fire around. Therefore, the underground distribution lines can be safely protected from any damage caused by the fire, and unnecessary power consumption can be reduced.

Description

Underground distribution line protection device for both connection of underground distribution lines

The present invention relates to an underground distribution line protection device for both connection of an underground distribution line, and more particularly, when a fire occurs, it can quickly detect it and suppress the surrounding area. It relates to an underground distribution line protection device that can reduce power consumption.

Electricity distributed from the primary substation or secondary substation is transmitted or distributed to the power receiving facilities of each customer through the transmission and distribution system composed of overhead distribution lines and underground distribution lines, and to low voltage consumers through special high voltage consumers, high voltage consumers and various outdoor installation transformers. It is used for transmission and distribution for industrial and domestic purposes.

Among them, the transmission and distribution method using the underground through the transmission and distribution system composed of underground distribution lines is a method of providing an adapter to the underground distribution line to which the underground distribution line enters, combining the plug with the end of the underground distribution line, and fastening the plug to the underground pipe adapter. .

As a connection device for connecting such an underground distribution line, there is Korean Patent Registration No. 10-1791968, which discloses a technology for electrically interconnecting distribution lines buried underground.

However, although the prior art has the advantage of electrically interconnecting distribution lines buried underground, there is no means for quickly suppressing the fire when it occurs, so it is very vulnerable to fire.

1. Republic of Korea Patent No. 10-0985559

The present invention is to provide an underground distribution line protection device that can be used to quickly detect a fire and suppress the surrounding area, which can safely protect the underground distribution line from damage caused by fire, and can reduce unnecessary power consumption. There is a purpose.

The present invention for achieving the above object,

It is fixed to the side wall of the underground tunnel and forms a step-like shape that slopes downward as it goes away from the side wall. On the horizontal plane forming the stairs, it is arranged adjacent to a pair of protrusion coupling parts and protrusion coupling parts penetrating up and down, and underground distribution lines are seated. A mounting portion recessed in a semicircular shape is integrally formed in the mounting portion, and a stopper protruding from the inner circumferential surface with a drain hole and a drain hole penetrating up and down at regular intervals along the longitudinal direction are integrally formed in the support portion, and both sides have one side A guide part that slopes downward toward the other side and communicates with the inside is integrally formed, and on the vertical surface of the distal end forming the stairs, a wire support is integrally formed with an outlet that communicates with the inside;

Fire extinguisher accommodating room which is integrally formed on the horizontal surface of the front end of the electric wire support, the inside is opened upward, and the discharge port through which the extinguishing agent is discharged is provided on the lower side;

It is provided between the electric wire support and the fire extinguisher accommodating room, the inside is penetrated up and down and the lower part communicates with the electric wire support, and the upper part consists of a striking body accommodating chamber that communicates with the fire extinguisher accommodating room through a guide pipe extending downward; ,

A cover that can be opened and closed on the upper surface of the fire extinguisher accommodating room 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 coupling protrusions movably fitted to the guide part of the main body are provided on both sides of the other end;

Resilient force is applied to the striking body so that the upper end of the striking body is inserted into the guide tube of the striking body accommodating room so that the upper end of the striking body can be drawn into the inside of the fire extinguisher accommodating room by resilient force. A striking mechanism composed of a spring provided, a connecting string in which one end is connected to the striking body in a state in which the spring is compressed by the striking body, and the other end is connected to the guide plate to fix the striking body and the guide plate together;

Doedoe forming 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 underground distribution line, and a body part with an inclined part inclined downwardly on the upper surface, downward from the lower surface of the body part A wire detention device consisting of a fitting protrusion that protrudes to and is removably fitted to the protrusion coupling part of the wire support, and guide jaws protruding upward from both ends of the upper surface of the body part;

a supporter unit including a fixing pin that is detachably inserted into the wire support so as to pass through the protrusion coupling part and intermittently separates from the wire holding hole from the wire support;

An insulating tube through which an underground distribution line is drawn in through both ends, and which is placed on a mounting portion and mutually coupled with a stopper through a stopper coupling portion 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 accommodated in the fire extinguisher accommodating room and that is destroyed by the striking body and leaks the filled extinguishing agent;

a fire detection sensor installed in the supporter unit to detect a fire and output a fire detection signal;

an induction plate detection sensor built into the wire support adjacent to the outlet to detect the guide plate passing through the outlet and output a detection signal;

a cutting mechanism built into the electric wire support to be disposed in the lower part of the striking body accommodating chamber and comprising a motor and a blade rotated by the motor to cut the connecting line;

A control unit that receives the fire detection signal from the fire detection sensor and controls the motor so that the blade can cut the connecting line, and controls the operation to stop the motor when the pull-out detection signal is input from the induction plate detection sensor. do.

The present invention can easily and conveniently interconnect underground distribution lines installed in an underground tunnel, and in particular, in the event of a fire, it can quickly detect and suppress the surrounding area, thereby safely protecting the underground distribution line from damage caused by fire. This has the advantage of reducing power consumption.

1 is a combined perspective view of an underground distribution line protection device for connecting an underground distribution line according to the present invention;
Figure 2 is an exploded perspective view of an underground distribution line protection device for connecting an underground distribution line according to the present invention.
Figure 3 is a combined cross-sectional view of the underground distribution line protection device for connecting the underground distribution line according to the present invention.
Figures 4a and 4b are a partial perspective view and a cross-sectional view separately showing a partial configuration including a striking body accommodating room and a striking body in the underground distribution line protection device for connecting the underground distribution line according to the present invention.
5 is a cross-sectional view showing a wire detention device separately extracted from the underground distribution line protection device for connecting the underground distribution line 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.
Figure 7 is a block diagram showing the correlation between each component in the underground distribution line connection and underground distribution line protection device according to the present invention.
8A to 8G are views for explaining the underground distribution line connection and action of the underground distribution line protection device for connecting the 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 an underground distribution line protection device for both connection of an underground distribution line according to the present invention, FIG. 2 is an exploded perspective view of a device for protecting an underground distribution line for connection with an underground distribution line according to the present invention, and FIG. 3 is an underground distribution line connection according to the present invention It is a combined cross-sectional view of a combined underground distribution line protection device, and FIGS. 4a and 4b are a partial perspective view and a cross-sectional view showing a partial configuration including a striking body accommodating room and a striking body in the underground distribution line protection device for connecting an underground distribution line according to the present invention. 5 is a cross-sectional view showing the wire detention device separately extracted from the underground distribution line protection device for connecting the underground distribution line according to the present invention, and Figs. It is a perspective view and a cross-sectional view showing a connector separately extracted from the mechanism, and FIG. 7 is a block diagram showing the mutual correlation between each component in the underground distribution line protection device for connecting the underground distribution line according to the present invention.

1 to 7, the underground distribution line protection device for connecting the underground distribution line according to the present invention is a supporter unit 100 and a connector 200, a fire extinguisher 300, a fire detection sensor 400, an induction plate detection sensor ( 500), the cutting mechanism 600 and the control unit 700, and according to this, it is possible to easily and conveniently interconnect the underground distribution line (L) installed in the underground tunnel (T), and in particular, in the event of a fire, it can be quickly detected. Because it can suppress the surrounding area, it can safely protect the underground distribution line (L) from damage caused by fire, and it has a technical feature that can lower unnecessary power consumption.

The supporter unit 100 is composed of a main body 110, a cover 120, a guide plate 130, a striking mechanism 140, a wire detention device 150, a fixing pin 160 and an idler 170, In this embodiment, it serves to fix the connector 200 which is installed and seated on the side wall of the underground tunnel (T: electric power bulb) through a fixing means (eg, an anchor bolt).

The main body 110 is composed of a wire support 111, a fire extinguisher accommodating room 112, and a striking body accommodating room 113 to support the underground distribution line (L), and a space and strike that the fire extinguisher 300 can be accommodated in. It provides an instrument 140 that can be installed.

The wire support 111 is fixed to the side wall of the underground tunnel T via a fixing means (eg, an anchor bolt). This wire support 111 has a stepped step shape that slopes downward as it goes away from the side wall. and the inside is opened downward.

In addition, the electric wire support 111 is integrally formed with a pair of protrusion coupling parts 111a penetrating up and down on a horizontal plane forming a step, and the underground distribution line L is seated in front of the protrusion coupling part 111a. The mounting portions 111b recessed in a semi-circular shape are disposed adjacent to each other.

In the projection coupling portion 111a, the wire retaining device 150 is inserted through the fitting projection 152 and placed on a horizontal surface, whereby the underground distribution line L is fixed to the wire support 111.

In addition, drain holes 111c penetrating up and down along the longitudinal direction of the holder 111b are formed at regular intervals, and extend from the inner circumferential surface of the holder 111b with the drain holes 111c interposed therebetween, and the connector 200 is seated. ) of the stopper coupling portion 211 and the stopper (111d) coupled to each other is integrally formed.

Here, the drain 111c serves to solve the problem of the extinguishing agent accumulating in the holding part 111b by allowing the extinguishing agent to be discharged quickly when it enters the holding part 111b through the connector 200, The stopper 111d is coupled to the stopper coupling portion 211 of the connector 200 to limit the left and right movement of the connector 200 .

And on both sides of the wire support 111, a guide portion 111e that is inclined downward from one side to the other side and communicates with the inside is integrally formed, and the guide portion 111e has a coupling protrusion of the guide plate 130 ( 131) is movably coupled.

In addition, an outlet 111f communicating with the inside is integrally formed on the vertical surface of the distal end of the wire support 111, and the guide plate 130 protrudes and protrudes through the outlet 111f.

The fire extinguisher accommodating chamber 112 is integrally formed on the horizontal surface of the front end of the electric wire support 111, and the fire extinguisher accommodating chamber 112 formed in this way is opened upwardly inside so that the fire extinguisher 300 can be accommodated, and the lower side An outlet (112a) is formed at the side so that when the fire extinguisher 300 is destroyed, the extinguishing agent liquid flowing out from the fire extinguisher 300 can be discharged to the outside.

For reference, the extinguishing agent discharged through the outlet 112a flows down the stairs of the electric wire support 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 supporter unit 100 installed on the opposite side.

The striking body accommodating chamber 113 is interposed between the electric wire support 111 and the fire extinguisher accommodating chamber 112, and the striking body accommodating chamber 113 thus formed has the striking mechanism 140 accommodated.

In particular, the inside of the striking body accommodating chamber 113 is penetrated up and down, and more specifically, holes (see FIGS. 3 to 4b ) are formed in the inner upper and lower surfaces, respectively, and the lower hole is the wire support 111 . and to communicate with each other, and the upper hole was made to communicate with the fire extinguisher accommodating chamber 112 .

In addition, a guide pipe 113a extending downwardly and enclosing the upper hole is integrally formed on the inner upper surface of the striking body accommodating chamber 113, where the guide pipe 113a guides the ascending and descending striking body 141. plays a role

The cover 120 is installed so as to be able to open and close on the upper surface of the fire extinguisher accommodating chamber 112. For this purpose, a protrusion groove is integrally formed on the upper surface of the fire extinguisher accommodating chamber 112, and the lower surface of the cover 120 has a protrusion groove. Corresponding projections are integrally formed and are coupled to each other through the projection groove and projection.

The guide plate 130 is a plate having a predetermined width and thickness, and is built into the main body 110, more specifically, the wire support 111, and is one end by an idler 170 disposed adjacent to the outlet 111f. The sub is supported, and the guide plate 130 installed in this way protrudes and retracts through the outlet 111f.

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 portion 111e, and if necessary, coupling protrusions 131 . Instead, screw bolts may be applied.

The guide plate 130 drawn out through the outlet 111f 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 111e, so that the guide plate 130 is completely separated from the body 110 . to prevent it from happening.

The striking mechanism 140 is built-in in the striking body accommodating chamber 113 of the main body 110 to strike and destroy the fire extinguisher 300 embedded in the fire extinguisher accommodating chamber 112, and the striking body 141 and the spring ( 142) and a connecting line 143.

The striking body 141 is a tubular rod with an opening downward, and in this embodiment, the striking body 141 is inserted into the guide pipe 113a of the striking body accommodating chamber 113 to be lifted and lowered through the fire extinguisher 300 through the resilient force. It strikes and destroys.

The upper end of the striking body 141 has a dome shape, and a plunger extending horizontally from the outer circumferential surface is integrally formed at the lower end thereof, and in the process of moving the striking body 141 upward by the resilient force, the guide tube 113a ) to minimize the discharge of the extinguishing agent liquid leaked from the fire extinguisher 300 through the guide tube (113a) by hanging on the lower end.

The striking body 141 has an upper end made of a metal material so that it can be easily inserted into the guide tube 113a, and the remaining part is made of a silicon material.

The spring 142 is a conventional coil spring, and in this embodiment, is built into the striking body 141 to provide resilient force so that the striking body 141 can be fired through the elastic restoring force.

The connecting line 143 has one end connected to the striking body 141 in a state in which the spring 142 is compressed by the striking body 141 , and the other end is connected to the induction plate 130 to guide the striking body 141 . It serves to fix the plate 130 together.

As an example, when the connecting string 143 is pulled in a state in which one end of the connecting string 143 is connected to the striking body 141, the striking body 141 is moved downward to compress the spring 142, and thus In a state in which the spring 142 is compressed, the other end of the connecting line 143 is connected to the guide plate 130 .

The striking body 141 is maintained in a loaded state by the connecting line 143 , and the guide plate 130 is maintained in a state accommodated in the wire support 111 .

And when the connection line 143 in the tense state is cut, the compressed spring 142 is restored and the striking body 141 provides resilient force so that the striking body 141 can be rapidly fired upward, thereby providing the striking body ( 141) strongly strikes and destroys the fire extinguisher 300 accommodated in the fire extinguisher accommodating chamber 112.

In particular, even after the fire extinguisher 300 is destroyed, since the striking body 141 blocks the hole of the guide tube 113a by the spring 142, the extinguishing agent liquid leaked from the fire extinguisher 300 closes the guide tube 113a. emissions can be minimized.

On the other hand, the guide plate 130 is moved along the guide portion 111e of the wire support 111 as the fixed state by the connecting line 143 is released, and is exposed to the outside through the outlet 111f.

The wire catcher 150 is composed of a body portion 151, a fitting protrusion 152, and a guide jaw 153. In this embodiment, it is detachably fitted to the body 110 and is interposed with a fixing pin 160. It serves to detain the underground distribution line (L) fixed to the mounting portion (111b).

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, where the arc-shaped fitting portion (151a) serves to detain the underground distribution line (L) together with the mounting portion (111b).

In addition, a fitting protrusion 152 that is detachably fitted to the protrusion coupling portion 111a is integrally formed on the lower surface of the body portion 151, and the fixing pin 160 is inserted through the fitting protrusion 152. The pin hole 152a is integrally formed.

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

For example, in a state in which the fitting protrusion 152 of the wire retainer 150 is inserted and seated in the protrusion coupling portion 111a of the wire support 111, the fixing pin 160 is inserted into the wire support 111 and fitted. When it is inserted through the pin hole 152a of the protrusion 152 , the wire retainer 150 is firmly fixed to the wire support 111 .

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 111d formed on the mounting part 111b, whereby the connector 200 is restricted from moving left and right.

And the wire retainer 150 is inserted into the protrusion coupling portion 111a via the fitting projection 152 and is fixed to the wire support 111 via the fixing pin 160 as a medium, so the connector 200 is the wire retainer. It is firmly fixed by (150).

The conductive pipe 220 is built into the insulating pipe 210 by insert molding, and is made of a conductive material, and a plurality of separation limiting protrusions 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 device for suppressing a fire in which a glass material is filled with an extinguishing agent. In this way, the leaked extinguishing agent is discharged to the outside through the outlet 112a of the fire extinguisher accommodating room 112 and flows along the electric wire support 111 to quickly extinguish the fire occurring in the underground distribution line (L).

For example, since the extinguishing agent of the fire extinguisher 300 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 fire extinguisher accommodating room 112 of the supporter unit 100, and a fire due to an electrical short due to a rodent (rat) or a protective function due to aging In the event of a fire caused by contact with a current flowing wire due to infiltration of the infiltrating water into the lost covered wire, the fire detection sensor 400 detects heat and outputs a fire detection signal to the control unit 700 .

The guide plate detecting sensor 500 is an optical sensor, and in this embodiment, it is built in the wire support 111 adjacent to the outlet 111f and detects the guide plate 130 passing through the outlet 111f to detect a detection signal. It serves to output to the control unit 700 .

The guide plate detection sensor 500 has a light receiving unit and a light emitting unit disposed therebetween with an outlet 111f interposed therebetween, and when the guide plate 130 passes between the light receiving unit and the light emitting unit, a detection signal is output to the control unit 700. .

In the present embodiment, the optical sensor has been described as an example, but any known one can be substituted as long as it can perform the same function.

The cutting mechanism 600 is composed of a motor 610 and a blade 620, and in this embodiment, is built into the electric wire support 111 to be disposed under the striking body accommodating chamber 113, and is operated from the control unit 700 It serves to cut the connection line 143 by receiving the signal.

The motor 610 is a normal servomotor, and is installed on the lower surface of the striking body accommodating chamber 113 in this embodiment, and is controlled by the control unit 700 to rotate the shaft.

The blade 620 is fixed to the shaft of the motor 610 and rotated by the motor 610 to cut the connecting line 143 .

The control unit 700 is a kind of controller, and in this embodiment, receives a fire detection signal from the fire detection sensor 400 and operates the motor 610 so that the blade 620 cuts the connection line 143, and induction When a withdrawal detection signal is input from the plate detection sensor 500 , it serves to control the operation to stop the motor 610 .

As described above, there is an advantage in that unnecessary power consumption can be prevented as the control unit 700 receives the withdrawal detection signal from the induction plate detection sensor 500 and controls the motor 610 to stop the operation.

8A to 8F are views for explaining the underground distribution line connection and operation of the underground distribution line protection device for connecting the underground distribution line according to the present invention, which will be described with reference to this.

Referring to FIGS. 8A and 8B , the supporter unit 100 is fixed to the sidewall of the underground tunnel 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 mounting portion 111b of the wire support 111 while the stopper coupling protrusion 211 of the connector 200 is seated. ) and the stopper 111d are mutually coupled.

Then, the fitting protrusion 152 of the wire detainer 150 is inserted into the protrusion coupling portion 111a of the wire support 111, and then the wire detainer 150 is connected to the wire support 111 through the fixing pin 160. fasten on

The connector 200 is firmly fixed by the wire retainer 150 coupled to the wire support 111 as described above.

On the other hand, referring to FIGS. 8c to 8e, when a fire occurs in the underground distribution line (L) in a state in which the underground distribution line (L) is installed in the supporter unit 100 via the connector 200, it is a fire detection sensor 400 detects and outputs a fire detection signal to the control unit 700, and the control unit 700 receives the fire detection signal to control the operation of the motor 610 of the cutting mechanism 600, and the motor 610 As the blade 620 is rotated by the driving of the connection line 143 is cut.

As the connecting line 143 is cut, the compressed spring 142 is restored and the striking body 141 is provided with resilient force so that it can be rapidly moved upward, thereby the striking body 141 is used for accommodating a fire extinguisher. The fire extinguisher 300 accommodated in the seal 112 is strongly struck and destroyed, and the destroyed fire extinguisher 300 leaks the extinguishing agent.

In particular, even after the fire extinguisher 300 is destroyed, since the striking body 141 blocks the hole of the guide tube 113a through the spring 142, the extinguishing agent liquid leaked from the fire extinguisher 300 is the guide tube 113a. emissions can be minimized.

In addition, the guide plate 130 is moved along the guide portion 111e of the wire support 111 as the fixing state by the connection line 143 is released and exposed to the outside through the outlet 111f, at this time the guide plate In the process of 130 passing through the outlet 111f, the guide plate detection sensor 500 detects it and outputs a detection signal to the control unit 700, and the control unit 700 detects it from the guide plate detection sensor 500 It is controlled to stop the operation of the motor 610 by receiving the signal.

As described above, when a withdrawal detection signal is input from the guide plate detection sensor 500, the controller 700 controls the motor 610 to stop operation, thereby preventing unnecessary power consumption.

Referring to FIG. 8G , the extinguishing agent liquid leaked from the fire extinguisher 300 is discharged through the outlet 112a of the fire extinguisher accommodating chamber 112 constituting the supporter unit 100, and the extinguishing agent liquid discharged in this way is a wire detention port. As it flows along the inclined portion 151b of (150), the fire of the underground distribution line (L) is quickly extinguished.

In addition, the extinguishing agent falling from the end of the wire support 111 constituting the supporter unit 100 is guided by the guide plate 130 protruding to the outside and delivered to the opposite underground distribution line protection 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: supporter unit 110: body 111: wire support
111a: protrusion coupling portion 111b: mounting portion 111c: drain hole
111d: stopper 111e: guide 111f: exit port
112: fire extinguisher accommodating room 112a: outlet 113: striking body accommodating room
113a: guide tube 120: cover 130: guide plate
131: coupling projection 140: striking mechanism 141: striking body
142: spring 143: connecting line 150: wire catchment
151: body portion 151a: arc-shaped fitting portion 151b: inclined portion
152: coupling protrusion 152a: pin hole 153: guide jaw
160: fixed pin 170: idler 200: connector
210: insulation tube 220: conductive tube 300: fire extinguisher
400: fire detection sensor 500: induction plate detection sensor 600: cutting mechanism
610: motor 620: blade 700: control unit

Claims (1)

It is fixed to the side wall of the underground tunnel (T), and as it goes away from the side wall, it forms a stepped step shape to be inclined downward, and a pair of protrusion coupling parts 111a and protrusion coupling parts 111a penetrating up and down on the horizontal plane forming the stairs. ) and a semicircular recessed cradle 111b so that the underground distribution line L can be seated is integrally formed, and the cradle 111b has a drain hole 111c penetrating up and down at regular intervals along the longitudinal direction. ) and a stopper 111d protruding from the inner circumferential surface with the drain hole 111c interposed therebetween are integrally formed, and guide portions 111e that are inclined downward from one side to the other side and communicate with the inside are integrally formed on both sides. , a wire support 111 integrally formed with an outlet 111f communicating with the inside on the vertical surface of the distal end forming the stairs,
Fire extinguisher accommodating chamber 112 integrally formed on the horizontal surface of the front end of the wire support 111, the inside is opened upward, and the outlet 112a through which the extinguishing agent is discharged is provided on the lower side;
It is provided between the electric wire support 111 and the fire extinguisher accommodating chamber 112, the inside is penetrated up and down to communicate with the electric wire support 111 at the lower part, and the upper part is a fire extinguisher through the guide pipe 113a extending downward. A body 110 comprising a striking body accommodating chamber 113 in communication with the accommodation chamber 112, and
A cover 120 installed on the upper surface of the fire extinguisher accommodating chamber 112 of the main body 110 so as to be able to open and close;
It is accommodated in the main body 110 so that it can be inserted and detached through the outlet 111f of the main body 110 , one end is supported by an idler 170 built into the main body 110 , and is movable in the guide portion of the main body 110 . The guide plate 130 provided on both sides of the other end of the coupling protrusion 131 to be fitted tightly,
The striking body 141 that is inserted into the guide pipe 113a of the striking body accommodating chamber 113 so as to be lifted and the upper end is drawn into the fire extinguisher accommodating chamber 112 by elastic force, and the upper end of the striking body 141 is a fire extinguisher A spring 142 that provides a resilient force to the striking body 141 so that it can be drawn into the interior of the accommodation chamber 112, one end of the striking body 141 in a state in which the spring 142 is compressed by the striking body 141 ), the other end is connected to the guide plate 130, and a striking mechanism 140 consisting of a connecting string 143 for fixing the striking body 141 and the guide plate 130 together;
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 and is abutted against the outer circumferential surface of the underground distribution line (L), and an inclined portion (151b) inclined downward to the upper surface ) is provided, the fitting protrusion 152 protrudes downward from the lower surface of the body 151 and is detachably fitted to the protrusion coupling portion 111a of the wire support 111, the body portion 151 A wire detention device 150 consisting of guide jaws 153 protruding upward from both ends of the upper surface of the
A supporter unit (100) composed of a fixing pin (160) that is detachably inserted into the wire support (111) so as to pass through the fitting projection (152) to control the separation of the wire retainer (150) from the wire support (111);
The underground distribution line L is introduced through both ends, and the insulating tube 210 is placed on the mounting portion 111b and coupled to the stopper 111d 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 pipe 220 having a limiting protrusion 221 integrally formed therewith;
a fire extinguisher 300 of glass material accommodated in the fire extinguisher accommodating chamber 112 and destroyed by the striking body 140 to discharge the filled extinguishing agent;
a fire detection sensor 400 installed in the supporter unit 100 to detect a fire and output a fire detection signal;
an induction plate detection sensor 500 installed in the wire support 111 adjacent to the outlet 111f to detect the guide plate 130 passing through the outlet 111f and output a detection signal;
A cutting mechanism ( 600);
When the fire detection signal is received from the fire detection sensor 400 and the motor 610 is controlled so that the blade 620 can cut the connection line 143, the extraction detection signal from the induction plate detection sensor 500 is input. A control unit 700 for controlling the operation to stop the motor 610; underground distribution line connection and underground distribution line protection device comprising a.

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