KR102047358B1 - Equipment for support underground distribution line - Google Patents

Abstract

The present invention relates to an underground distribution line connector capable of fire suppression, which comprises: a duct (100); an exhaust fan (200); a bracket (300); a main line installation unit (400); a branch line installation unit (500); a solenoid (600); a heat sensor (700); a fire sensor (800); a buffer unit (900); an acceleration sensor (1000); an electronic valve (1100); a control unit (1200); and a fire hydrant (1300).

Description

Underground distribution line connection connector for fire suppression {Equipment for support underground distribution line}

The present invention relates to a underground distribution line connection connector capable of extinguishing fire.

Electricity distributed from the primary substation or secondary substation is transmitted or distributed to the receiving facility of each customer through the transmission and distribution system consisting of overhead distribution line and underground distribution line, and to the low voltage consumer through the special high voltage consumer, high pressure consumer and various outdoor transformers. It is used for industrial and home use by transmission and distribution.

Among them, the transmission and distribution method using underground through the transmission distribution system composed of underground distribution lines is provided with underground overload adapters in underground distribution lines into which underground distribution lines are introduced, and the plugs are coupled to the underground pipeline adapters by coupling the plugs to the ends of underground distribution lines. That's the way.

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

However, the above conventional technology has the advantage of electrically interconnecting the distribution lines buried in the ground, but there is no means to quickly extinguish the fire inside the manhole because it is very vulnerable to fire, the current is confirmed when abnormal It was difficult to prevent the spread of damage because there was no function to block quickly, and especially the additional expansion of the branch line was fundamentally difficult.

1. Republic of Korea Patent No. 10-1791968 (2017.11.01)

The present invention has been devised to solve the above problems, it is possible to quickly extinguish when the fire occurs in the manhole, so that the wires are all burned out due to the fire can be minimized, and the current is confirmed quickly It can prevent the spread of damage and prevent the spread of damage, and can easily expand the branch line, and it is possible to work even in the live state, so it is not necessary to cut off the power. Its purpose is to provide underground distribution line connectors.

The present invention for achieving the above object,

A duct installed to penetrate the manhole M to allow air inside the manhole to be discharged to the outside;

An intake fan installed in the duct to forcibly suck air in the manhole and discharge it to the outside;

A base having a top and bottom cover fitting, a base having a protrusion projecting toward the center from the inner circumferential surface of the cover fitting, a vertical portion extending vertically upwardly from both ends of the base, and extending horizontally from the end of the vertical portion to mediate the fixing means. Bracket consisting of a fixed portion fixed to the inner upper surface of the furnace manhole;

The upper surface is provided with a wire lead portion that the conductive wire of the main wire is drawn inward and electrically connected, the lower main portion is connected to the rod-shaped main wire connecting portion having a nut portion formed with a screw tab on the inner peripheral surface,

The main line is inserted through the cap and is installed to surround the upper end of the main line, consisting of a circular top plate extending outward from the bottom of the cap, the guide groove is formed along the longitudinal direction on the outer peripheral surface of the cap and the protrusion It is coupled to be movable, the locking groove is formed on the outer circumferential surface so as to face each other based on the guide groove, the through hole is provided in the lower portion of the locking groove so that the outer circumferential surface of the main line connecting portion is exposed to the outside, the inside is upward Insulating cover which is provided with an open airtight ring receiving groove, an electric wire introduction part composed of an airtight ring of elastic material installed in the airtight ring receiving groove to cover the outer circumferential surface of the main wire hermetically;

An insulating material having a diameter equal to that of the first plate and the top plate, which is electrically connected to the main wire connection part by being detachably fastened to the main wire connection part by having a bolt part corresponding to the nut part of the main wire connection part on an upper surface thereof. Finish with bottom plate,

A second joint, a top plate, and a bottom, which are disposed between the main line connecting part and the first joint part having a bolt part and a nut part on the upper and lower surfaces, respectively, and are detachably fastened through the bolt part and the nut part, and electrically connected to each other. A main wire installation unit comprising an extension part composed of an insulating middle plate having the same diameter as the plate and installed on an outer circumferential surface of the second joint part;

It has a single rod shape as a whole, and a receiving part penetrates up and down to accommodate the first and second joints in the center, and one end is in communication with the receiving part so that the first and second joints can be drawn inward. The guide portion opened to the outer circumference is provided, the clasp receiving portion is provided on both inner sides of the guide portion, the branch line inlet portion is provided on the outer circumferential surface so that the branch line can be drawn inward, and the upper body provided with the branch line inlet portion is provided with a detention port receiving portion. Wow,

The terminal consists of a joint part terminal part which is installed to be exposed to the receiving part and the guide part of the body and is integrally connected to the main line connecting part and the joint part, and the joint part part part, which is exposed as the branch line inlet part, and the branch line part is inserted and electrically connected. Absence,

A closing block surrounding the outer circumferential surface of the main line connecting part exposed by being inserted into the guide part by a slide method;

A stopper that is slidably installed on an outer circumferential surface of the closing block to be detachably fitted to the stopper receiving portion to clamp and engage the body and the closing block;

A branch line pressurizing port which is provided with a locking step formed on the outer circumferential surface and is inserted into the branch line inlet part in a state where the outer circumferential surface of the branch line is pressed;

It is removably inserted into the detention port receiving part, and is composed of a detention port that restrains the diverging line pressure opening from the branch line inlet part against the hooking jaw to the outside, between the top plate and the middle plate, between the middle plate, the middle plate and the bottom A branch line installation unit fitted between the plates in a slide manner and rotatably installed around the main line connecting portion and the joint portion connected to each other;

A solenoid installed on the base adjacent to the locking groove to fix and release the main line installation unit;

A heat sensor installed at the base adjacent to the through hole and measuring a temperature of the main line connection unit;

A fire detection sensor installed on the bracket to detect heat generated in a fire and output a fire detection signal;

A shock absorbing unit installed on a bottom plate of the bottom plate and configured to include a rubber tube for expanding air by receiving air and an air tank for supplying air to expand the rubber tube;

An acceleration sensor installed on the bottom of the bottom plate and measuring an acceleration value according to the flow of the main line installation unit;

A solenoid valve for opening the air tank;

When the temperature value measured by the heat sensor is within the preset standard temperature range, the solenoid is operated to disconnect the main wire installation unit from the bracket and the electrical connection with the main wire is disconnected, and the acceleration measured by the acceleration sensor When the value is within the preset standard acceleration value range, the solenoid valve is operated so that air can be injected into the rubber tube from the air tank, and when the fire detection signal is received from the fire detection sensor, the smoke inside the manhole flows out through the duct. A control unit for outputting a hydrant operation signal while controlling the exhaust fan to be discharged;

And a fire hydrant for spraying fire by spraying the fire extinguishing liquid filled therein into the fire area inside the manhole through the injection valve with an injection valve operated and controlled by the hydrant operation signal of the controller.

The present invention has the advantage of minimizing the loss of all the wires burned out by the fire because it can be quickly suppressed when a fire occurs in the manhole.

In addition, when the extension portion is continuously installed between the wire introduction portion and the finish portion, since the branch line installation unit can be further added, there is an advantage that the branch line can be easily and easily expanded.

In addition, when abnormality is confirmed, the current can be cut off quickly to prevent the damage from spreading.

In addition, since the branch line installation unit is detachably installed in the main line installation unit, the branch line installation unit is detached from the main line installation unit after replacing the branch line installation unit without interrupting the power supply of the main line when replacing or installing the branch line. Since it is a hypothesis, the branch line can be easily replaced or hypothesized even in the live state.

In addition, since the branch line installation unit can rotate around the conductive rod of the main line installation unit, it is easy to adjust the angle during the construction of the branch line, and thus there is an advantage in that the convenience of work is improved.

In addition, since the connection state with the main line can be quickly disconnected when overheated due to a short circuit, the spread of damage can be prevented and the risk of damage to the connecting mechanism can be greatly increased through the buffering by the shock absorbing unit during the fall due to separation from the main line. There is an advantage that can be lowered.

1 is a view showing an installation state of the underground distribution line connection connector capable of extinguishing fire according to the present invention.
Figure 2 and Figure 3 is a perspective view of the underground distribution line connection connector capable of extinguishing fire according to the present invention in different directions.
4 is an exploded perspective view of FIG. 2;
5 is a partial front cross-sectional view of FIG. 2.
Figure 6 is an exploded perspective view showing a separate branch line installation unit in the underground distribution line connection connector capable of extinguishing fire according to the present invention.
Figure 7 is a plan sectional view of the branch line installation unit in the underground distribution line connection connector capable of extinguishing fire according to the present invention.
Figure 8 is a block diagram showing the interrelationship between each component in the underground distribution line connection connector capable of extinguishing fire according to the present invention.
Figure 9 is a view for explaining the operation of the underground distribution line connection connector capable of extinguishing fire according to the present invention.
10a and 10b is a view for explaining another action of the underground distribution line connection connector capable of extinguishing fire according to the present invention.

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

1 is a view showing a state of installation of the underground distribution line connection connector capable of extinguishing fire according to the present invention, Figures 2 and 3 are perspective views showing different directions of the underground distribution line connection connector of the fire suppression according to the present invention. 4 is an exploded perspective view of FIG. 2, FIG. 5 is a partial front cross-sectional view of FIG. 2, and FIG. 6 is an exploded perspective view showing a branch line installation unit separately from a ground fire connection connector capable of extinguishing fire according to the present invention. FIG. 7 is a cross-sectional plan view of a branch line installation unit in a ground fire connection connector capable of suppressing fire according to the present invention, and FIG. 8 illustrates a mutual relationship between components in a ground power connection connector capable of suppressing fire according to the present invention. It is a block diagram.

1 to 5, the underground distribution line connection connector according to the present invention, the duct 100 and the exhaust fan 200, the bracket 300, the main line installation unit 400, branch line installation unit 500, As the solenoid 600, the heat sensor 700, the fire sensor 800, the shock absorbing unit 900, the acceleration sensor 1000, the solenoid valve 1100, the control unit 1200 and the fire hydrant 1300, According to this, in case of fire in the manhole, it can be extinguished quickly, minimizing the loss of all wires due to fire, and minimizing the loss of current. It is possible to expand the branch line, so it is excellent in versatility, and it is possible to work even in the live state, so it is not necessary to cut off the power.

For reference, the main line L1 is an electric wire drawn out from the overhead wire of the telephone pole and penetrating through the upper part of the manhole M embedded in the ground.

Referring to FIG. 1, the duct 100 is a pipe, and in this embodiment, one end is penetrated through the manhole M, and the other end extends to the outside so that air in the manhole M may be discharged to the outside. It acts as a passageway.

For example, as the fresh air from the outside through the duct 100 is introduced into the manhole (M) in general, it is possible to improve the humid environment of the manhole (M) to minimize accidents such as electric short circuit, fire When smoke occurs due to the role of the passage to allow the smoke in the manhole (M) to be discharged to the outside.

In addition, one end of the duct 100 disposed outside the manhole (M) is preferably bent horizontally so that infiltration water such as rainwater does not flow into the manhole (M) through the duct (100).

Referring to FIG. 1, the exhaust fan 200 is installed in the duct 100 and operated by the controller 1200 to forcibly suck and discharge air (including smoke) inside the manhole M. .

The air (including smoke due to fire) inside the manhole M forcibly sucked as described above is moved along the duct 100 to be quickly discharged out of the manhole M, thereby greatly enhancing the smoke control performance.

1, 2 and 4, the bracket 300 is a member of an insulating material that is fixed to the inner upper surface (ceiling) of the manhole M through fixing means (for example, anchor bolts).

The bracket 300 has a plate-shaped base 310, a vertical portion 320 vertically extending upwardly from both ends of the base 310, and horizontally extending from the end of the vertical portion 320 is fixed means (eg : An anchor bolt) is composed of a fixing part 330 fixed to the inner upper surface (ceiling) of the manhole (M).

Here, the base 310 is provided with a cover fitting portion 311 penetrated vertically in the center, the cap 412a of the main line installation unit 400 is removably inserted into the cover fitting portion 311. .

In addition, the inner circumferential surface of the cover fitting portion 311 is formed to be opposed to each other and protruding horizontally toward the center is formed integrally, where the protrusion 312 is the cap of the main line installation unit 400 ( 412a is guided so that it can be accurately inserted, and thus the locking groove 412a-2 and the through hole 412a-3 at the position where the solenoid 600 and the thermal sensor 700 are described later. ) Can be placed correctly.

In addition, a fire detection sensor 800 is installed on one side of the vertical portion 320.

1 to 5, the main line installation unit 400 is detachably fitted to the bracket 300 to be electrically connected to and disconnected from the main line L1.

The main wire installation unit 400 is composed of a wire introduction portion 410 and the finishing portion 420 and the expansion portion 430, which are interconnected through the bolt portion and the nut portion.

The wire guide part 410 is composed of a main line connecting part 411, the cover 412 and the airtight ring 413.

Here, the main line connecting portion 411 is a rod-shaped metal material having excellent electrical conductivity, such as copper, the upper surface is provided with a wire lead portion 411a to be electrically connected by the lead wire of the main line (L1) to the inside, On the lower surface, the inside is opened downward and a nut part 411b having a screw tab formed on the inner circumferential surface is integrally provided.

The cover 412 surrounds the upper end of the main line connecting part 411 and prevents falling water, and is formed of a cap 412a and a top plate 412b.

The cap 412a is fitted to penetrate the main line L1 and is installed to surround an upper end of the main line connection part 411.

The top plate 412b is a disk-shaped member that extends outward from the lower end of the cap 412a. The upper plate 412b is inclined downward from the end of the cap 412a toward the outer circumferential surface, and the lower surface is flat.

Here, the guide groove 412a-1 is formed in the outer circumferential surface of the cap 412a along the longitudinal direction, and the protrusion 312 of the bracket 300 is movably coupled to the guide groove 412a-1. Withdrawal is possible in a stable state.

In addition, the outer circumferential surface of the cap (412a) is provided with a locking groove 412a-2 facing each other based on the guide groove (412a-1), the rod of the solenoid 600 is provided in the locking groove (412a-2) Removably fitted.

In addition, the outer circumferential surface of the cap (412a) is provided with a through hole (412a-3) located in the lower portion of the engaging groove (412a-2) and communicate with the inside, the main line connecting portion through the through hole (412a-3) The outer circumferential surface of the 411 is exposed to the outside, and the non-contact type thermal sensor 700 disposed adjacent to the through hole 412a-3 can measure the temperature on the outer circumferential surface of the main line connecting portion 411 in real time. do.

In addition, the upper surface of the cap (412a) is provided with an airtight ring receiving groove (412a-4) is opened upwards, the airtight ring receiving groove (412a-4) is inserted into and fixed to the airtight ring receiving groove (412a-4). .

The hermetic ring 413 is a member made of a material such as rubber or silicone having elasticity penetrated up and down in the center thereof. In the present embodiment, the hermetic ring 413 is inserted into and fixed to the hermetic ring receiving groove 412a-4, and the main line is inserted through The outer circumferential surface of (L1) is hermetically wrapped to serve to block the ingress of infiltration water.

Here, the main line connecting portion 411 and the cover 412 is manufactured by insert molding.

The finish portion 420 is composed of a first joint 421 and the bottom plate 422, they are manufactured through insert molding.

The first joint portion 421 is a rod-shaped metal material having excellent electrical conductivity such as copper, and a bolt portion 421a is integrally formed on an upper surface thereof.

Here, the bolt part 421a is fastened to the nut part 411b of the main line connecting part 411 or the nut part 431b of the second joint part 431 to be electrically connected. In this embodiment, the second joint It is illustrated as being fastened to the nut portion 431b of the portion 431.

The bottom plate 422 is an insulating plate having the same diameter as the top plate 412b and is installed at the lower end of the first joint 421.

The expansion part 430 is composed of a second joint portion 431 and the middle plate 432, these are manufactured by insert molding.

The second joint portion 431 is a rod-shaped metal material having excellent electrical conductivity such as copper, and a bolt portion 421a is integrally formed on an upper surface thereof, and a nut portion 431b is integrally formed on a lower surface thereof.

Here, the bolt portion 421a of the second joint portion 431 is detachably fastened to the nut portion 411b of the main line connecting portion 411, and the nut portion 431b of the second joint portion 431 is closed. The bolt portion 421a of the portion 420 is detachably fastened.

When there are a plurality of expansion parts 430, the bolt part 421a of the neighboring expansion part 430 may be detachably fastened to the nut part 431b of the second joint part 431.

The middle plate 432 is an insulating plate having the same diameter as the top plate 412b and the bottom plate 422, and is installed on the outer circumferential surface of the second joint 431 in the present embodiment, and the top plate 412b. And the bottom plate 422.

The space between the top plate 412b and the middle plate 432, the space between the middle plate 432, the space between the bottom plate 422 and the middle plate 432 are all the same, which is the branch line installation unit 500 Body 510) is equal to or slightly larger than the thickness.

In addition, the diameter of the top plate 412b, the bottom plate 422 and the middle plate 432 is larger than the diameter of the body 510 of the branch line installation unit 500, accordingly, when the impact is applied from the outside The plate 412b, the bottom plate 422, and the middle plate 432 are first subjected to the shock to protect the branch line installation unit 500.

As an example, if the extension part 430 is continuously installed between the wire introduction part 410 and the finishing part 420, since the branch line installation unit 500 may be further added, the branch line L2 may be easily and simply added. There is an advantage to this.

1 to 7, the branch line installation unit 500 is removably inserted into the main line installation unit 400 to electrically connect the main line L1 and the branch line L2 to be installed rotatably. The angle of the hypothesis path of the branch line (L2) can be freely adjusted.

The branch line installation unit 500 includes a body 510, a terminal member 520, a closing block 530, a clamp 540, a branch line pressing port 550, and a detention port 560, respectively, and includes a top plate 412b. Removably inserted between the middle plate 432, middle plate 432, the bottom plate 422 and the middle plate 432 is fixed.

The body 510 is a member made of an insulating material manufactured in the shape of a horseshoe, and a main portion connecting part 411 and first and second joint parts 421 and 431 penetrate up and down to be received inward in the center thereof. 511 is provided, and one end is in communication with the receiving portion 511 so that the main line connecting portion 411 and the first and second joints 421 and 431 can be fitted in a slide coupling manner, and the other end is connected to the outside through the outer circumferential surface. An open guide part 512 is provided, and the clasp receiving part 513 is provided on both inner side surfaces in which the guide part 512 is formed.

In addition, the body 510 is provided with a branch line inlet 514 through which the branch line L2 is drawn in / out on the opposite outer circumferential surface on which the guide part 512 is formed, and on the upper surface where the branch line inlet 514 is provided, Part 515 is provided.

The terminal member 520 is composed of a joint terminal portion 521 and the branch terminal portion 522.

Here, the joint portion 521 is partially embedded in the body 510 and the remaining portion is exposed to the receiving portion 511 and the guide portion 512, the main line according to the position fitted to the main line installation unit 400 The wire connection part 411 and the second joint part 431 are electrically connected to the first and second joint parts 421 and 431 and the second joint part 431.

In addition, the branch terminal portion 522 is integral with the joint terminal portion 521, is installed in the body 510 and communicates with the branch line lead-in portion 514, the conductor of the branch line (L2) is releasably inserted into the electrical Is connected.

The finishing block 530 is a block of insulating material, in the present embodiment is inserted into the guide 512 of the body 510 so as to be slidable to surround the main line connecting portion 411 with the body 510 main line connecting portion The outer circumferential surface of the 411 is fixed to the body 510 via the clamp 540 while not being exposed to the outside, thereby limiting the unauthorized release of the body 510 from the main line connecting portion 411.

The finishing block 530 has a rectangular shape as a whole, the terminal guide groove 531 is formed integrally on both sides of the joint terminal 521, one end of the main line connecting portion 411 and the first Semicircular grooves are formed to correspond to the outer circumferential surfaces of the two joint portions 421 and 431.

For example, when the body 510 and the closing block 530 are coupled to each other, the joint terminal 521 guides the terminal guide groove 531.

The clamp 540 is slidably installed on the outer circumferential surface of the closing block 530, and is inserted into the lock clamp receiving portion 513 to be inserted detachably to intercept the coupling and separation of the body 510 and the closing block 530. Do it.

The branch line pressing port 550 is a divided semi-circular tube, the engaging jaw 551 is formed on the outer circumferential surface, a projection pressing portion 35b is provided on the inner circumferential surface, and the outer circumferential surface of the branch line L2 is pressed. Removably fitted into the furnace branch lead-in portion 514.

For example, when pressing the branch line (L2) by using the branch line pressure port 550, the branch line (L2) is released without permission as the pressing portion (35b) strongly asks the coating of the branch line (L2). You can limit it.

The detention port 560 is a fork-shaped member, which is inserted into the detention port accommodating part 515 so as to be detachably inserted therein, and the branch line pressing port 550 is external from the branch line inlet 514 by being engaged with the locking jaw 551. It serves to limit unauthorized departures.

4, 5, and 8, the solenoid 600 is operation controlled by the controller 1200. In the present embodiment, the solenoid 600 is opposed to the base 310 so as to be opposed to each other based on the cover fitting portion 311. Fixed to detach the main line installation unit 400 detachably.

For example, the rod of the solenoid 600 is inserted into the locking groove 412a-2 of the cap 412a to fix the main line installation unit 400, and the rod is separated from the locking groove 412a-2. The pre-installation unit 400 is separated from the cover fitting portion 311 to fall to the bottom of the manhole (M).

5 and 8, the heat sensor 700 is a known non-contact thermometer, in the present embodiment is installed on the bottom surface of the base 310 adjacent to the through-hole 412a-3 in the main line connecting portion ( Continuously measures the temperature of the 411 and serves to output the measured value to the control unit 1200.

Referring to FIG. 1, the fire detection sensor 800 is a well-known heat detection sensor installed in the bracket 100. In the present embodiment, a part of the wire is broken due to a rodent (rat) to cause a fire due to an electric short circuit. In addition, the infiltration water flows into the inner side of the coating line which loses the protection function due to the aging or the old age, and detects heat when a fire occurs due to contact with the conductive wire through which current flows, and outputs a fire detection signal to the controller 1200.

Referring to FIG. 3, the shock absorbing unit 900 includes a rubber tube 910 and an air tank 920 and is installed on the bottom of the bottom plate 422.

The rubber tube 910 is expanded by receiving air from the air tank 920 serves to cushion the impact when the main ship installation unit 400 falls.

The air tank 920 is a cylinder filled with air, and serves to supply air to expand the rubber tube 910.

For reference, the rubber tube 910 and the air tank 920 are interconnected via a hose, the solenoid valve 1100 is installed in the hose to regulate the flow of air flowing along the hose.

3 and 8, the acceleration sensor 1000 is installed on the bottom surface of the bottom plate 422 and measures the acceleration value according to the flow of the main line installation unit 400 to transfer the measured value to the controller 1200. Will print.

3 and 8, the solenoid valve 1100 is installed in a hose connecting the rubber tube 910 and the air tank 920 to each other, and is controlled by the controller 1200 to open and close the inside of the hose. do.

3 and 8, the controller 1200 is a controller, which is installed on the bottom of the bottom plate 422 in the present embodiment.

When the temperature value measured by the heat sensor 700 is included in the preset reference temperature value range, the control unit 1200 is separated from the bracket 300 and the main line installation unit 400 is separated from the main line L1. Operation control of the solenoid 600 to be disconnected.

In addition, when the acceleration value measured by the acceleration sensor 1000 is included in a predetermined reference acceleration value range, the solenoid valve 1100 is controlled to allow the air to be injected into the rubber tube 910 from the air tank 920. .

In addition, the control unit 1200 receives the fire detection signal from the fire detection sensor 800 and transmits a fire hydrant operation signal to the injection valve 1310 of the hydrant 1300 while operating the exhaust fan 200.

The exhaust fan 200 is operated by the control unit 1200 to be smoked by inhaling the smoke generated during the fire and extinguishing process into the duct 100 to quickly discharge to the outside.

In addition, when the hydrant 1300 receives a hydrant operation signal from the control unit 1200, the inlet of the injection valve 1310 is opened, and at this time, the extinguishing agent and the non-combustible gas filled in the steel container are injected by internal pressure. It is injected into the manhole (M) through the entrance of 1310 to extinguish the fire zone in a moment.

Referring to FIG. 1, the fire hydrant 1300 is made of a steel container with a hard outer surface, and is filled with a fire extinguishing agent and compressed air or a non-combustible gas (nitrogen, carbon dioxide, halogen gas) liquefied at a high pressure. One side is provided with an injection valve 1310 to control the leakage of the extinguishing agent and non-combustible gas filled in the inside.

According to the present embodiment, when the hydrant operation signal is input from the controller 1200, the inlet of the injection valve 1310 is opened, and at this time, the fire extinguishing agent and the non-combustible gas filled in the steel container are discharged by internal pressure. 1310) will be injected into the manhole (M) to suppress the fire zone in a moment, thereby minimizing the damage caused by the fire.

Referring to the operation of the present invention made of the above configuration as follows.

As shown in FIG. 1, when a fire occurs in the branch line L2, the fire detection sensor 800 detects the fire signal and outputs a fire detection signal to the control unit 1200, and the control unit 1200 includes an exhaust fan. 200 and the fire hydrant 1300 to output the operation signal to operate.

The exhaust fan 200 is controlled by the control unit 1200 to be smoked by inhaling the smoke generated during the fire and extinguishing process into the duct 100 to quickly discharge to the outside.

In addition, when the hydrant 1300 receives a hydrant operation signal from the control unit 1200, the inlet of the injection valve 1310 is opened, and at this time, the extinguishing agent and the non-combustible gas filled in the steel container are injected by internal pressure. It is injected into the manhole (M) through the entrance of 1310 to extinguish the fire zone in a moment.

According to the present embodiment, the fire is rapidly extinguished through the exhaust fan 200 and the fire hydrant 1300 controlled by the controller 1200, and the smoke generated at this time is quickly discharged to the outside. There is an advantage to be able to minimize the spread.

On the other hand, the present invention is very easy to expand the branch line (L2), it will be described in detail as follows.

When extension of the branch line L2 is required in addition to the existing branch line L2, first, the current flowing along the main line L1 is cut off or the main line L1 is separated from the main line installation unit 400.

In the state as described above, after separating the branch line installation unit 500 disposed between the expansion unit 430 and the finishing unit 420 to the main line installation unit 400, the expansion unit 430 and the finishing unit ( 420).

When the expansion unit 430 and the finishing unit 420 is separated as described above, the new unit 430 is coupled to the lower end of the expansion unit 430, and the finish is separated from the lower end of the newly combined expansion unit 430. Joining unit 420.

The extended branch line L2 is electrically connected to the new branch line installation unit 500, and then the branch line installation unit 500, which has been separated from the main line installation unit 400, and the new branch line installation unit to which the extended branch line L2 is connected. It is enough to install 500.

According to this embodiment, the expansion unit 430 is extended by the number of extension lines of the branch line L2, and the expanded branch line L2 is connected to the new branch line installation unit 500, and then to the main line installation unit 400. There is an advantage in that the extension work is very convenient because it is electrically connected.

On the other hand, Figure 9 is a view for explaining another action of the underground distribution line connection connector capable of extinguishing the fire according to the present invention, the process of replacing the branch line (L2) in the live state as follows.

First, as shown in FIG. 1, the branch line L2 is disconnected or disconnected while the main line L1 and the branch line L2 are electrically connected to each other through the main line installation unit 400 and the branch line installation unit 500. It is necessary to replace the branch line L2 in which the coating is damaged.

In the replacement process, as shown in FIG. 9, the clamp 540 is slid and moved away from the clamp receiving part 513 by using the index finger in the state of holding the body 510 with both hands.

Then, the body 510 and the finishing block 530 are drawn out to the outside, and the detaining port 560 introduced into the detaining part accommodating part 515 is detached to the outside.

When the branch line L2 is pulled out, the branch line pressing port 550 accommodated in the branch line inlet 514 is drawn out to the outside, and the conducting wire of the branch line L2 is separated from the branch terminal portion 522 of the terminal member 520. Departure.

After drawing out the branch line L2 as described above, the newly installed branch line L2 is pressurized and fixed by using the branch line pressure port 550, and the branch line L2 together with the branch line pressure port 550 is divided into the branch line inlet part ( The lead wire of the branch line (L2) is pushed into the branch line terminal portion 522 of the terminal member 520 to be electrically connected to the 514.

As described above, when the branch line L2 and the branch terminal terminal 522 of the terminal member 520 are electrically connected to each other, the detention port 560 is inserted into the detention port accommodating part 515 so that the latching jaw of the branch line pressing port 550 is engaged. 551 is caught by the detention port 560, whereby the branch line (L2) is limited to be separated from the outside by the branch line pressing port 550 and the detention port (560).

Then, the body 510 to which the branch line L2 is connected is inserted into the first and second joint parts 421 and 431 via the guide part 512 so that the first and second joint parts 421 and 431 are disposed in the receiving part 511. The first and second joint parts 421 and 431 and the joint terminal part 521 of the terminal member 520 are electrically connected to each other.

Then insert the finishing block 530 into the guide 512, when the closing block 530 is fitted so that the closing block 530 is fixed to the body 510 by using the clamp 540.

According to the present embodiment, there is an advantage that the branch line L2 can be easily replaced even in the live state through the branch line installation unit 500 without interrupting the power supply of the main line L1.

In addition, since the branch line installation unit 500 has a structure rotatable around the main line connecting portion 411, it is easy to adjust the angle of the branch line L2, and thus, there is an advantage of improving the convenience of construction.

10A and 10B are views for explaining another operation of the underground distribution line connection connector capable of extinguishing a fire according to the present invention.

On the other hand, when the temperature rises in the main line connecting portion 411 due to a short circuit, it is necessary to quickly separate the main line (L1) and the main line connecting portion 411.

First, the heat sensor 700 continuously measures the temperature of the main line connecting part 411 through the through hole 412a-3, and outputs the measured value to the controller 1200, and the controller 1200 detects the heat. When the temperature value measured by the sensor 700 is included in the preset reference temperature value range, the solenoid may be disconnected from the bracket 300 so that the electrical connection with the main line L1 may be disconnected. Operation 600 is controlled.

In more detail, the solenoid 600 is operated by the control unit 1200 so that the rod is separated from the locking groove 412a-2, and thus the main line installation unit 400 has a cover fitting portion ( 311) to fall to the bottom of the manhole (M).

When the main line installation unit 400 falls, the acceleration sensor 1000 installed in the bottom plate 422 measures the acceleration value according to the flow of the main line installation unit 400 and outputs the measured value to the controller 1200. If the acceleration value measured by the acceleration sensor 1000 is within a preset reference acceleration value range, the controller 1200 may allow the air to be injected into the rubber tube 910 from the air tank 920. ) To control operation.

The solenoid valve 1100 is operated by the control unit 1200 to open the inside of the hose connecting the rubber tube 910 and the air tank 920, the air tank 920 as the inside of the hose is opened The air filled in the interior of the air is quickly injected into the rubber tube 910, the rubber tube 910 is expanded to receive the air to cushion the impact when the main line installation unit 400 falls.

According to the present embodiment, it is possible to quickly cut off the current at the time of abnormality check to prevent the damage from spreading, there is an advantage that can greatly reduce the risk of damage to the underground distribution line support mechanism through the buffer function during the fall.

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

100: duct 200: exhaust fan 300: bracket
310: base 320: vertical portion 330: fixed portion
400: main wire installation unit 410: wire introduction portion 411: main wire connection
412: cover 413: hermetic ring 420: finish
421: first joint 422: bottom plate 430: expansion unit
431: second joint portion 432: middle plate 500: branch wire installation unit
510: body 520: terminal member 530: finishing block
540: clamp 550: branch line presser 560: detention
600: solenoid 700: heat detection sensor 800: fire detection sensor
900: buffer unit 910: rubber tube 920: air tank
1000: acceleration sensor 1100: solenoid valve 1200: control unit
1300: hydrant 1310: injection valve

Claims (1)

A duct 100 installed to penetrate the manhole M so that air in the manhole M may be discharged to the outside;
An intake fan 200 installed in the duct 100 to forcibly suck air in the manhole M and discharge it to the outside;
A base 310 having a cover fitting portion 311 penetrated up and down, a protrusion 310 projecting toward the center from the inner circumferential surface of the cover fitting portion 311, and vertically extending upwardly from both ends of the base 310. A bracket 300 including a vertical part 320 and a fixing part 330 extending horizontally from an end of the vertical part 320 and fixed to an inner upper surface of the manhole M through fixing means;
The upper surface is provided with a wire lead portion 411a which is connected to the conductive wire of the main wire (L1) to the inside and electrically connected, the lower surface has a rod shape having a nut part 411b with an inner opening downward and a screw tab formed on the inner peripheral surface Main line connector 411 on the top,
The main line (L1) is inserted through and consists of a cap 412a installed to surround the upper end of the main line connecting portion 411, a circular top plate 412b extended outward from the bottom of the cap 412a, Guide grooves 412a-1 are formed on the outer circumferential surface of the cap 412a so as to be movable with the protrusions 312, and the locking grooves 412a- are opposed to each other based on the guide grooves 412a-1. 2) is formed on the outer circumferential surface, the through hole (412a-3) is provided in the lower portion of the locking groove (412a-2) so that the outer circumferential surface of the main line connecting portion 411 is exposed to the outside, the inside is upward Insulating cover 412 of the insulating material provided with an open airtight ring receiving groove (412a-4), an airtight ring of elastic material is installed in the airtight ring receiving groove (412a-4) to surround the outer peripheral surface of the main line (L1) ( A wire lead portion 410 consisting of 413,
The first joint 421, which is provided with a bolt part 421a corresponding to the nut part 411b of the main wire connection part 411 on the upper surface, is detachably fastened to the main wire connection part 411, and is electrically connected thereto. Finishing portion 420 having the same diameter as the plate 412b and consisting of an insulating bottom plate 422 installed on the lower end of the first joint 421,
A bolt portion 431a and a nut portion 431b are provided on the upper and lower surfaces thereof, respectively, and are disposed between the main line connecting portion 411 and the first joint portion 421 to mediate the bolt portion 431a and the nut portion 431b. Of insulating material installed on the outer circumferential surface of the second joint part 431, the top plate 412b and the bottom plate 422, and having the same diameter as that of the second joint part 431, the top plate 412b, and the bottom plate 422. A main line installation unit 400 consisting of an extension part 430 composed of a middle plate 432;
It is formed in a single rod shape as a whole, and an accommodating part 511 penetrates up and down so that the first and second joint parts 421 and 431 can be accommodated in the center thereof, and the first and second joint parts 421 and 431 are led inward. In order to be able to communicate with one end of the receiving portion 511 and the other end is provided with a guide portion 512 open to the outer circumferential surface, the locking clasp receiving portion 513 is provided on both sides of the inner side relative to the guide portion 512, the outer circumferential surface The branch line inlet 514 is provided to allow the branch line L2 to be drawn inward, and the body 510 provided with the detention port accommodating unit 515 is provided on the upper surface of the branch line inlet 514.
The joint part terminal part 521, which is installed to be exposed to the receiving part 511 and the guide part 512 of the body 510, is electrically connected to the main line connecting part 411 and the first and second joint parts 521 and 531. A terminal member 520 integrally formed with the sub-terminal portion 521 and exposed to the branch line inlet portion 514 and having a branch line terminal portion 522 to which the branch line L2 is fitted and electrically connected thereto;
Closing block 530 surrounding the outer circumferential surface of the main line connecting portion 411 is inserted into the guide portion 512 by the slide method, and
A fastener 540 that is slidably installed on an outer circumferential surface of the closing block 530 to be removably inserted into the fastener receiving portion 513 to clamp and engage the body 510 and the closing block 530;
A branching line pressure port 550 having a locking step 551 formed on the outer circumferential surface and detachably fitted to the branch line inlet 514 while pressing the outer circumferential surface of the branch line L2;
Removably inserted into the detention port receiving portion 515, it is composed of a detention port 560 against the locking jaw 551 to limit the separation of the branch line pressure port 550 from the branch line inlet 514 to the outside The main line connecting portion 411 and the first and the first wire 412b and the first plate 412b and the middle plate 432, and between the middle plate 432 and the middle plate 432 and the bottom plate 422. Branch line installation unit 500 is rotatably installed around the two joints (521,531);
A solenoid 600 installed on the base 310 adjacent to the locking groove 412a-2 to fix and release the main line installation unit 400;
A heat sensor 700 installed at the base 310 adjacent to the through hole 412a-3 to measure a temperature of the main line connecting part 411;
A fire detection sensor 800 installed on the bracket 100 to detect heat generated in a fire and output a fire detection signal;
A shock absorbing unit 900 installed on the bottom of the bottom plate 422 and configured to include a rubber tube 910 for receiving air and expanding the air, and an air tank 920 for supplying air to expand the rubber tube 910;
An acceleration sensor 1000 installed on a bottom surface of the bottom plate 422 and measuring an acceleration value according to the flow of the main line installation unit 400;
A solenoid valve 1100 that opens the air tank 920;
When the temperature value measured by the heat sensor 700 is included in the preset reference temperature value range, the main line installation unit 400 may be detached from the bracket 300 and electrical connection with the main line L1 may be broken. The solenoid 600 to control the operation of the solenoid 600, and when the acceleration value measured by the acceleration sensor 1000 is included in a preset reference acceleration value range, the solenoid valve may allow air to be injected into the rubber tube 910 from the air tank 920. While controlling the operation 1100, while receiving a fire detection signal from the fire detection sensor 800, while operating the exhaust fan 200 to allow the smoke in the manhole (M) to be discharged to the outside through the duct 100 A controller 1200 for outputting a hydrant operation signal;
It is equipped with an injection valve 1310 which is operated and controlled by the hydrant operation signal of the control unit 1200 to spray fire extinguishing fluid filled in the fire zone inside the manhole M through the injection valve 1310 to extinguish the fire. Fire hydrant (1300); underground distribution line connecting connector comprising a.

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