KR101145351B1 - Electric wire pipe for prevention of underground distribution line - Google Patents

Abstract

PURPOSE: A conduit tube for protection of a power distribution type underground wire is provided to prevent an underground wire to be burned through fire by rapidly extinguishing the fire by the medium of a fire hydrant. CONSTITUTION: An external case(10) is composed of an elastic body(12), an opening and closing plate(13), a base plate(14), and a floating body(15). The external case safely protects underground wires(L1, L2) from external force. The underground wires are connected by the medium of an internal case(20). The internal case is composed of a metallic conduit tube(22), a reference bar(23), and a binding metal device. A first moving detection sensor(30) is operated by the reference bar and outputs a first moving detection signal to a controller(70). A water level detection sensor(50) is operated by the floating body and outputs a water level detection signal to the controller.

Description

Electric Wire Pipe For Prevention Of Underground Distribution Line

The present invention relates to a conduit for protection of a distribution type underground line.

In general, electricity used in each home, office, and large-scale factories is supplied with electricity through substations installed in each region. These substations are installed for the purpose of modifying voltage or current and distributing power. Power generated in the is sent to the user through the transmission line or distribution line.

The substation is generally installed on the ground, in the case of such a substation is to transfer the high-voltage current is a high voltage wire is mostly exposed to the outside, the high-voltage wire exposed to the outside is a short circuit and short circuit due to external interference It is easy to be induced, and because of the dizzying hypothesis of high voltage cables, there is a problem such as hatching the surrounding landscape.

When installing high voltage cables in the basement as described above, problems such as external interference and surrounding landscape damage were solved because they were not exposed to the outside. However, the length of the first designed high voltage cables was longer depending on the site conditions. Even though there is a problem that needs to be further connected, it continues to be implemented.

In the case of the high-voltage wire is connected easily to the installation of the high voltage wire of the manhole in order to facilitate the operation and repair at the same time, the high-voltage wire has a diameter of the high-voltage wire to supply power at high pressure inside Since it is very thick, it is joined together by bolting in a state where they are opposed to each other, and the joint is protected by wrapping insulating tape on the outer surface.

In particular, underground cables wired inside the manhole have stresses inside as the tension and shrinkage occurs repeatedly due to temperature changes, and when a certain period of time elapses in the above state, part of the underground wire This breakage causes an electric short circuit, or penetrates water into the inside of the coated wire which has lost its protective function due to aging, and comes into contact with a current-carrying wire, causing a short circuit and a fire due to a short circuit. There is a problem such as burning out, so that the workers can be notified promptly at the time of fire, and the research on the way to extinguish the fire has been actively conducted.

The present invention has been made in order to solve the above problems, and in the manhole inside the ground wired inside the fire by quickly extinguishing the fire zone through the fire hydrant while informing the administrator through a wireless transmission when a fire occurs due to short circuit and short circuit Its purpose is to provide conduits for the protection of distribution-type underground lines that can prevent the wires from being burned out and lost.

According to an aspect of the present invention,

First and second guide grooves formed in parallel along the longitudinal direction of the inner top and bottom surfaces, guide holes formed along the longitudinal direction of the outer upper surface and communicating with the first guide grooves, and protrusions formed on both inner sides of the first guide groove. An enclosure part body of an insulating material; An elastic body inserted into the second guide groove to elastically support the second guide part in one direction; An opening and closing plate having an insertion groove rotatably inserted into the protrusion at both ends, the opening and closing plate being installed to be opened and closed at both ends of the enclosure main body and blocking the departure from the outside of the elastic body; A base plate having a guide rod installed on the bottom of the enclosure body and fixed to the bottom surface of the manhole; Enclosure with floating buoyant mounting on the guide rod:

A first guide part formed in the center of the upper surface and movably installed in the first guide groove, a second guide part formed in the center of the lower surface and movably installed in the second guide groove, and formed at both ends and screwed on the outer peripheral surface, respectively. An inner box body made of an insulating material having a tab-formed fastening portion, the inside of which is opened along the longitudinal direction so that the underground wire can be inserted therein; A metal tube of a conductor material installed in the inner body and electrically connecting the conductors of the underground cables; A reference rod which is installed to be detachably penetrating through the guide hole and moves along the guide hole; An inner fastener consisting of a fastener for crimping and securing the underground wire while wrapping the outer surface of the underground wire, and a fastener that is rotatably fitted to the fastener while surrounding the circumference of the fastener and is fastened to the fastening part to secure the fastener to the fastening part. Hamper:

The first movement detection sensor is installed on the upper surface of the enclosure main body, respectively installed on the front and rear with respect to the reference rod and operated by the reference rod to output the first movement detection signal:

A second movement detecting sensor installed at both ends of the upper surface of the enclosure and operated by a reference rod passing through the first movement detecting sensor to output a second movement detecting signal:

The water level sensor installed on the bottom of the enclosure main body and operated by the support body to output the water level detection signal:

A fire detection sensor installed inside the manhole and outputting a fire detection signal by detecting heat generated in a fire;

Fire hydrant operation signal is received from the first movement sensor and the second movement detection sensor, respectively, the first movement detection signal and the second movement detection signal are outputted an alarm signal and a danger signal, and the fire detection signal is received from the fire detection sensor. Control unit for controlling the operation of the pump and lamp at the same time outputs the water level detection signal from the water level detection sensor and outputs the flood warning signal;

A fire hydrant equipped with an injection valve which is operated and controlled by a hydrant operation signal of the control unit, and sprays the fire extinguishing liquid filled into the fire area inside the manhole through the injection valve.

Transmitter receiving the alarm signal, danger signal or flood warning signal from the control unit and transmits it to the outside:

A pump having a suction pipe and a discharge pipe on one side and the other side, respectively, installed on the ground and operated by a control unit to suck rainwater inside the manhole through the suction pipe and discharge it to the outside through the discharge pipe:

It is installed on the ground, it is characterized in that it comprises a lamp which is controlled by the control unit to emit light to the outside.

According to a preferred embodiment of the present invention, when a fire occurs due to a short circuit or short circuit inside a manhole where underground cables are wired through a fire sensor and a fire hydrant, the administrator is notified through a wireless transmission and a fire zone is quickly transmitted through a fire hydrant. There is an advantage that can be prevented from being burned down and lost all the underground wires that are wired inside.

In addition, according to an embodiment of the present invention, the rainwater or sewage flowing through the manhole cover during the summer to the outside through the water level sensor, the control unit, the pump and the lamp to the central control room where the manager resides through the transmitter By transmitting a flood warning signal, there is an advantage that the distribution line can be prevented from an electrical safety accident such as short circuit due to contact with rainwater or sewage.

In addition, according to an embodiment of the present invention, because it detects the step-by-step operation of the reference rod moved by the distribution line through the first moving sensor and the second moving sensor, the control unit and the transmitter to inform the worker resident in the central control room There is an advantage that the operator can easily grasp the current state of the distribution line and respond quickly.

Furthermore, according to an embodiment of the present invention, the inner body is always restored to its original state through an elastic body which is installed in the enclosure body and repeats compression and restoration so that the administrator does not have to forcibly move the moved reference bar. Therefore, there is an advantage that becomes very convenient in managing the facility.

1 is a view showing an installation state of the conduit for the protection of the distribution-type underground line according to the present invention.
Figure 2 is a perspective view of the combined conduit for the protection of the distribution-type underground line according to the present invention.
Figure 3 is an exploded perspective view of the conduit for the protection of the distribution-type underground line according to the present invention.
4 is a view for explaining a first embodiment of the conduit for the protection of the distribution-type underground line according to the present invention.
5 is a view for explaining a second embodiment of the conduit for the protection of the distribution-type underground line according to the present invention.
Figure 6 is a block diagram showing the correlation between each component in the conduit for the protection of the distribution-type underground line according to the present invention.

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

In describing the present invention, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the description thereof will be omitted.

1 to 4, the conduit for the protection of the distribution-type underground line according to the present invention, the outer box 10, the inner box 20, the first moving sensor 30, the second moving sensor 40, the water level sensor 50, the fire sensor 60, the control unit 70, the fire hydrant 80, the transmitter 90, the pump 100, the lamp 110, the underground underground In addition to interconnecting the wires (L1, L2) and serves to protect the interconnected underground wires (L1, L2) from external forces.

The enclosure 10 is made of a synthetic resin material having excellent insulation, and consists of an enclosure body 11, an elastic body 12, an opening and closing plate 13, a base plate 14, and a support body 15. It functions to safely protect the underground wires L1 and L2 connected through the inner box 20 and the inner box 20 inserted into the inner force.

In the present embodiment, the enclosure 10 is fixed to be installed spaced apart from the bottom surface of the manhole 1 via the base plate 14.

The enclosure main body 11 has a rectangular tubular shape, the first and second guide grooves (11a, 11b) formed side by side in the longitudinal direction on the inner upper surface and the bottom surface, respectively, the longitudinal direction on the outer upper surface A guide hole 11c is formed along the first guide groove 11a and communicates with each other. The projections 11d protruding from each other are integrally formed on both inner sides of the first guide grooves 11a, and protrude outwardly on both outer surfaces. The flange 11e is formed integrally. Here, the flanges 11e are joined to each other by flanges (not shown) of the connection pipes 3 and 4 installed into the manhole 1 and connected to each other via fastening members (bolts and nuts).

The elastic body 12 is a known coil spring, which is inserted into the second guide groove 11b in the present embodiment and functions to support the second guide portion 21b in one direction. According to the present embodiment, when the second guide portion 21b of the inner compartment body 21 to be described later moves to the left or the right by the underground wires L1 and L2, the second guide portion 21b is moved. The elastic body 12 which is elastically supported in one direction is compressed, and when the external force applied to the ground wires L1 and L2 is removed, the second guide portion 21b is returned to its original state by the restoring force of the elastic body 12. Will come back. Therefore, it is very convenient to manage the facility because the administrator does not have to manually move to the center.

The opening and closing plate 13 is a plate having a predetermined thickness with the insertion groove 13a provided at both ends. In this embodiment, the opening and closing plate 13 is rotated by the protrusion 11d of the enclosure main body 11 through the insertion groove 13a. It is fitted to open and close both ends of the enclosure main body 11, and at the same time serves to block the departure from the outside even when the elastic body 12 is compressed. For reference, the opening and closing plate 13 is fixed to the enclosure body 11 via a fastening member (screw bolt) in a closed state. Therefore, in order to make the opening and closing plate 13 open, the fastening member (screw bolts) fastened to the enclosure main body 11 must be opened in a disassembled state, so that a third party other than the manager can easily release the connection state. Safeguard from intention

The base plate 14 is a plate having a predetermined thickness, and a plurality of guide rods 14a fixed to the bottom of the enclosure main body 11 are integrally formed on the upper surface of the base plate 14. It is fixed to the bottom surface serves to support the enclosure main body 11 is spaced apart from the bottom surface of the manhole (1) by a predetermined interval.

The support 15 is a plate having a predetermined thickness that floats easily in water, and in the present embodiment, is mounted to the guide rod 14a of the base plate 14 so as to be liftable. According to the present embodiment, when rainwater flows into the manhole 1, the floating body 15 is floated by rainwater, and thus the water level sensor 50 installed on the bottom of the enclosure main body 11 is floated. It is operated by the support body 15 to output the water level detection signal to the control unit 70, the process will be described in detail below.

The inner box 20 is composed of the inner box body 21, the metal tube 22, the reference bar 23 and the binding bracket 24 to electrically connect the underground wires (L1, L2).

Here, the inner box body 21, the reference bar 23 and the binding bracket 24 are made of synthetic resin.

The inner body body 21 is a straight bar shape made of an insulating material, and a first guide part movably installed in the first guide groove 11a and the second guide groove 11b at the center of the top and bottom surfaces, respectively. 21a and the second guide portion 21b are integrally formed, and fastening portions 21c having screw tabs formed on the outer circumferential surface are integrally formed at both ends. In particular, the interior of the inner body body 21 is open at both ends so that the underground wires (L1, L2) can be inserted. In addition, a hole is formed in the center of the upper surface of the first guide portion 21a, and one end of the reference rod 23 to be described later is penetrated through the guide hole 11c of the enclosure 10. Is installed.

The metal pipe 22 is a known copper pipe, and in the present embodiment, is installed in the inner body 21 to electrically connect the conductive wires of the underground wires L1 and L2.

The reference bar 23 is a well-known round bar, and in the present embodiment, is installed to be detachably attached to the first guide part 21a through the guide hole 11c and moves along the guide hole 11c. According to the present embodiment, it is easy to determine in which direction the tensile force acts on the ground wires L1 and L2 according to the position of the reference bar 23, so that subsequent measures can be easily determined. Although not shown in detail, in the present embodiment, it is preferable to provide a luminous means at the distal end of the reference bar 23 to facilitate identification even in a dark space.

The binding bracket 24 includes a fixture 24a for crimping and fixing the underground wires L1 and L2 while wrapping the outer surfaces of the underground wires L1 and L2; It is made of a coupler (24b) is rotatably fitted to the fastener (24a) while wrapping around the fastener (24a), fastened to the fastening portion (21c) to fix the fastener (24a) to the fastening portion (21c), This is shown as a partial enlarged view of FIG.

Subsequently, the first movement detection sensor 30 and the second movement detection sensor 40, the water level detection sensor 50, the fire detection sensor 60, the control unit 70, the fire hydrant 80, and the transmitter 90. , The correlation between the pump 100 and the lamp 110 will be described in detail with reference to FIG. 5.

The first movement detection sensor 30 is a known limit switch, in the present embodiment is installed on the upper surface of the enclosure main body 11, respectively installed on the front and rear with respect to the reference bar 23, the reference bar ( 23) to output a first movement detection signal to the control unit 70.

The second movement detecting sensor 40 is the same known limit switch as the first movement detecting sensor 30. In the present embodiment, the second movement detecting sensor 40 is installed at both ends of the upper surface of the enclosure main body 11, and the first movement detecting sensor 30 is provided. Operated by the reference bar 23 passed through the function to output the second movement detection signal to the control unit 70.

The water level sensor 50 is a well-known switch, in the present embodiment is installed on the bottom of the enclosure main body 11 and operated by the support body 15 supported by rainwater to control the water level detection signal 70 It outputs to.

The fire detection sensor 60 is a well-known heat detection sensor installed inside the manhole 1, and in the present embodiment, a part of the fire wire is cut off due to excessive tension of the underground wires L1 and L2 to the left and right, and thus, an electric short circuit. To detect the heat in case of fire caused by the contact with the conductive wire through which the infiltration water flows into the inner side of the coated wire which has lost the protection function due to the fire or aging due to aging and outputs a fire detection signal to the controller 70. do.

The controller 70 receives the first movement detection signal and the second movement detection signal from the first movement detection sensor 30 and the second movement detection sensor 40, respectively, and outputs an alarm signal and a danger signal, respectively, and fires. The fire detection signal is received from the detection sensor 60 to output the fire hydrant operation signal, and the water level detection signal is received from the water level detection sensor 50 to output the flood warning signal and simultaneously pump 100 and the lamp 110. Function to control operation.

The fire hydrant 80 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 high pressure, and filled in one side of the container. An injection valve 81 for controlling the outflow of extinguishing agent and incombustible gas is provided.

According to the present embodiment, when the hydrant operation coral is input from the controller 70, the inlet of the injection valve 81 is opened, and at this time, the extinguishing agent and the non-combustible gas filled in the steel container are discharged by internal pressure. 81 is to be injected into the manhole (1) through the inlet to extinguish the fire zone in a moment, thereby minimizing the damage caused by the fire.

Therefore, the control unit 70 receiving the fire detection signal from the fire detection sensor 60 transmits the hydrant operation control signal to the injection valve 81 of the hydrant 80 installed in the manhole 1 to inject the valve. Through the 81, the extinguishing liquid (a fire extinguishing agent and a non-combustible gas) can be injected into the manhole (1), and at the same time, outputs a fire signal and transmits it to the transmitter (90). 90) wirelessly transmits a fire occurrence signal to a central control room (not specifically shown) in which the worker resides, whereby other wires wired inside the manhole 1 are burned out through the fire occurrence signal received by the worker. Not to be able to quickly respond to the follow-up measures, as shown in FIG.

The transmitter 90 is installed to be exposed to the ground to transmit an alarm signal or a danger signal or a flood warning signal transmitted from the controller 70 to the outside.

The pump 100 has a suction pipe 101 inserted into the manhole 1 on one side and the other side, and a discharge pipe 102 exposed to the ground, and is installed adjacent to the manhole 1. In the present embodiment, the pump 100 is operated by the control unit 70 to suck the rainwater introduced into the manhole 1 through the suction pipe 101, and the sucked rainwater is discharged to the ground through the discharge pipe 102. As a zoom, it functions to prevent the conduit from being submerged by rainwater.

The lamp 110 is a well-known lighting device. In the present embodiment, the lamp 110 is installed on the ground adjacent to the manhole 1 and is controlled by the controller 70 to emit light to the outside.

For reference, since the pump 100 and the lamp 110 are supplied with power from the outside, a detailed description thereof will be omitted since it is already well known in the art.

According to this embodiment, when the rain falls a lot, such as during the rainy season, even if the manhole (1) is covered by the opening and closing plate (2) rainwater is easily introduced into the inside of the manhole (1), due to this manhole (1) Is slowly locked. In this way, when the rainwater rises, the floating body 15 is floated by the rainwater, and when the floating water body 15 rises and the water level sensor 50 is pressed, the water level sensor 50 is operated so that the water level detection signal is operated. The controller 70 receives the water level detection signal from the water level sensor 50 and outputs the water immersion warning signal to the transmitter 50, and at the same time, the controller 70 controls the pump 100 and the lamp ( 110) to control the operation. In more detail, the transmitter 50 receiving the flood warning signal from the controller 70 transmits the danger signal to the central control room where the manager resides. In addition, the pump 100 controlled by the control unit 70 sucks rainwater introduced into the manhole 1 through the suction pipe 101 to discharge the lifted rainwater to the ground through the discharge pipe 102. The lamp 110 controlled by the controller 70 is turned on to emit light to the surroundings. Therefore, the manager who resides in the central control room can go to the corresponding manhole (1) through the flood warning signal received and watch the current situation, and take follow-up measures in case, so that the ground line ( L1, L2) can be protected. Furthermore, even when the surroundings are dark at night and difficult to identify, the manhole 1 can be easily found through the lit lamp 110, so that necessary measures can be promptly taken.

On the other hand, when the external force acts on the underground wires (L1, L2) connected to each other through the metal tube 22 inside the inner body 21, the inner body 21 is one of the left or right Direction, and at the same time the reference rod 23 detachably installed on the first guide portion 21a of the inner box body 21 also moves along the guide hole 11c, in which case the reference rod 23 When the first movement detection sensor 30 passes, the first movement detection sensor 30 is operated to transmit the first movement detection signal to the control unit 70, and the first movement detection sensor 30 is operated from the first movement detection sensor 30. 1, the control unit 70 receives the movement detection signal and outputs the alarm signal to the transmitter 50, and the transmitter 50 receives the alarm signal from the control unit 70 in the central control room where the manager resides. Will be sent to.

In addition, when the reference rod 23 passes through the first movement detecting sensor 30 and passes through the second movement detecting sensor 40, the second movement detecting sensor 40 transmits the second movement detecting signal to the controller 70. The controller 70 receives the second movement detection signal from the second movement detection sensor 40, outputs the dangerous signal to the transmitter 50, and transmits the dangerous signal from the controller 70. 50 transmits the danger signal to the central control room where the manager resides.

Therefore, the manager residing in the central control room can intuitively recognize the current state of the underground cables L1 and L2 through the received alarm signal or danger signal, so that the necessary action can be promptly taken.

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

First, the installation process of the insulated wire tube for protecting the underground cable according to the present invention will be described.

First, the enclosure 10 is installed on the bottom surface of the manhole 1 via the base plate 14. Then, the underground wire (L1) is inserted into one end of the enclosure 10 in a state where the enclosure 10 is installed and discharged through the other end. Then, the fastening brackets 24 are respectively provided at one ends of the underground wires L1 and L2, and then the underground wires L1 and L2 are inserted into the interior through the fastening portion 21c of the inner box body 21. The underground wires L1 and L2 are electrically connected to each other through the metal pipe 22.

When the underground wires L1 and L2 are connected through the metal pipe 22 as described above, the coupling holes 24b of the binding brackets 24 installed on the underground wires L1 and L2 are mutually fastened with the fastening portion 21c. Ground wires (L1, L2) to be fixed. When the installation process of the inner compartment 20 is completed, the first guide 21a and the second guide portion 21b of the inner body 21 constituting the inner enclosure 20 constitute the enclosure 10. It is installed to be movable in the first guide groove (11a) and the second guide groove (11b) of the enclosure main body 11, and the elastic body 12 is installed in the second guide groove (11b), respectively.

After the installation as described above, the insertion groove 13a of the opening and closing plate 13 is inserted into the protrusion 11d of the enclosure main body 11 and then rotated to close the opening of the enclosure main body 11. The fastening member 13 may be fastened to the enclosure body 11 by fastening the fastening member (screw bolts). As described above, after the installation is completed, the connecting pipes 3 and 4 are respectively inserted through both sides of the manhole 1, and the flanges (not shown) of the connecting pipes 3 and 4 of the enclosure 10 are inserted. After facing each other to the flange (11e) is jointed with each other via a fastening member (bolt and nut).

Looking at the operation relationship of the insulated wire tube for underground cable protection according to the present invention.

4 and 6, the underground wires L1 and L2 wired inside the manhole 1 are repeatedly tensioned and contracted due to temperature change, and stress is generated therein.

After a certain period of time in the above state, a part of the conductor is cut off due to repeated tension and contraction, causing an electrical short circuit or infiltration water flowing into the inside of the insulated wire which lost the boro function due to aging. By being in contact with, a short circuit and a short circuit fire will occur.

Therefore, when a fire occurs in the manhole 1 due to an electric short circuit, the fire detection sensor 60 installed in the manhole 1 detects heat generated in a fire and transmits a fire detection signal to the controller 70. In addition, the control unit 70 that receives the fire detection signal from the fire detection sensor 60 transmits the fire hydrant operation signal to the injection valve 81 of the hydrant 80 installed in the manhole 1 so that the injection valve ( The fire extinguishing liquid may be injected into the manhole 1 through 81 and at the same time, a fire occurrence signal is output and transmitted to the transmitter 90.

When the hydrant operation signal is input from the control unit 70, the inlet of the injection valve 81 is opened. At this time, the extinguishing agent and the non-combustible gas filled in the steel container are manhole 1 through the inlet of the injection valve 81 by internal pressure. It is sprayed inside to extinguish the fire zone at once.

Furthermore, the transmitter 90 receiving the fire occurrence signal from the fire detection signal 60 transmits a fire occurrence signal to the central control room where the operator resides by wireless, and the manhole (via the fire occurrence signal received by the operator). 1) Follow-up measures can be taken promptly so that other wires wired inside do not burn out.

Meanwhile, referring to FIGS. 5 and 6, when the rain falls a lot during the rainy season, even if the manhole 1 is covered by the cover 2, rainwater flows easily into the inside of the manhole 1. 1) is slowly locked by rainwater.

When the rain rises as described above, the float 15 is lifted along the guide rod 14a of the base plate 14 by the rain, and when the float 15 is raised, the level sensor 50 is pressed. As a result, the water level sensor 50 is operated to output the water level detection signal.

The controller 70 receiving the water level detection signal from the water level detection sensor 50 outputs the water immersion warning signal to the transmitter 50 and simultaneously controls the pump 100 and the lamp 110. In more detail, it is as follows.

First, the transmitter 50 receiving the flood warning signal from the controller 70 transmits a danger signal to the central control room where the manager resides.

In addition, the pump 100 controlled by the control unit 70 sucks rainwater introduced into the manhole 1 through the suction pipe 101 to discharge the lifted rainwater to the ground through the discharge pipe 102. The lamp 110 controlled by the controller 70 is turned on to emit light to the surroundings.

Therefore, the manager who resides in the central control room can go to the corresponding manhole (1) through the flood warning signal received and watch the current situation, and take follow-up measures in case, so that the ground line ( L1, L2) can be protected.

Furthermore, even when the surroundings are dark at night and difficult to identify, the manhole 1 can be easily found through the lit lamp 110, so that necessary measures can be promptly taken.

On the other hand, the inner case 20 which is usually connected to the underground wires (L1, L2) is located in the center of the inside of the outer case (10). However, when an external force (left or right) is applied to the underground wires L1 and L2, this causes the inner box 20 to move in the direction in which the external force acts, thereby causing the reference rod installed in the inner box body 21. 23 is also moved together, the elastic body 12 is compressed. At this time, when the reference rod 23 passes the first movement detecting sensor 30 in the process of moving along the guide hole 11c of the enclosure body 11, the first movement detecting sensor 30 is the reference rod 23. The first movement detection signal is transmitted to the control unit 70 while operating by the control unit 70, and the control unit 70 receiving the first movement detection signal from the first movement detection sensor 30 outputs an alarm signal to transmit the transmitter 50. The transmitter 50 transmits the alarm signal to the central control room where the manager resides.

In addition, when the reference rod 23 passes through the first movement detecting sensor 30 and passes through the second movement detecting sensor 40, the second movement detecting sensor 40 transmits the second movement detecting signal to the controller 70. The controller 70 receives the second movement detection signal from the second movement detection sensor 40, outputs the dangerous signal to the transmitter 50, and transmits the dangerous signal from the controller 70. 50 transmits the danger signal to the central control room where the manager resides.

Therefore, the manager who resides in the central control room can intuitively recognize the current state of the underground cables L1 and L2 through the received alarm signal or danger signal, and can take necessary steps step by step. This has the advantage of being very easy.

The elastic body 12, which is compressed by the second guide portion 21b of the inner body body 21, is removed from the restoring force of the elastic body 12 when the external force applied to the underground wires L1 and L2 is removed. As a result, the second guide portion 21b returns to its original state. Therefore, since the manager does not have to forcibly move the moved reference bar 23, there is an advantage that it becomes very convenient in managing the facilities.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

1: manhole 2: cover 3.4: connector
10: enclosure 11: enclosure body 11a: first guide groove
11b: 2nd guide groove 11c: guide 11d: projection
11e: flange 12: elastomer 13: opening and closing plate
14: base plate 15: flotation 20: inner box
21: inner body body 21a: first guide portion 21b: second guide portion
21c: fastening portion 22: metal tube 23: reference bar
24: binding bracket 30: the first movement detection sensor 40: the second movement detection sensor
50: water level sensor 60: fire detection sensor 70: control unit
80: hydrant 81: injection valve 90: transmitter
100: pump 110: lamp

Claims (1)

First and second guide grooves 11a and 11b formed side by side in the longitudinal direction of the inner top and bottom surfaces, and guide holes 11c formed along the longitudinal direction of the outer top surface and communicating with the first guide groove 11a. ) And an enclosure part body 11 made of an insulating material composed of protrusions 11d formed on inner surfaces of both ends; An elastic body 12 inserted into the second guide groove 11b to elastically support the second guide portion 21b in one direction; Opening and closing plate (13a) which is rotatably inserted into the projection (11d) at both ends, it is installed to be opened and closed at both ends of the enclosure main body 11, and the opening and closing plate (blocking the separation of the elastic body 12 to the outside ( 13); A base plate 14 having a guide rod 14a installed at the bottom of the enclosure main body 11 and fixed to the bottom surface of the manhole 1; Enclosure 10, which is installed on the guide rod 14a and lifts up and has a float 15 floating therein:
A first guide portion 21a formed at the center of the upper surface and movably installed in the first guide groove 11a, and a second guide portion formed at the center of the lower surface and movably installed in the second guide groove 11b ( 21b) and a fastening portion 21c formed at both ends and having screw tabs formed on the outer circumferential surface thereof so that the inside of the insulating material is opened along the longitudinal direction so that the underground wires L1 and L2 can be inserted therein. Ham body 21; A metal tube 22 made of a conductor material which is installed in the inner body 21 and electrically connects the conductors of the underground wires L1 and L2; A reference rod 23 penetrating the guide hole 11c and detachably installed in the first guide part 21a and moving along the guide hole 11c; A fastener 24a for crimping and fixing the underground wires L1 and L2 while wrapping the outer surfaces of the underground wires L1 and L2, and is rotatably fitted to the fastener 24a while surrounding the circumference of the fastener 24a. The inner compartment 20 having a fastening tool 24 formed of a coupling tool 24b fastened to the part 21c to fix the fastener 24a to the fastening part 21c:
The first movement detection sensor is installed on the upper surface of the enclosure main body 11, respectively installed on the front and rear with respect to the reference rod 23 and operated by the reference rod 23 to output a first movement detection signal ( 30):
A second movement detecting sensor 40 installed at both ends of the upper surface of the enclosure main body 11 and operated by a reference rod 23 passing through the first movement detecting sensor 30 to output a second movement detecting signal;
Water level sensor 50 is installed on the bottom of the enclosure main body 11 and operated by the support body 15 to output a water level detection signal:
A fire detection sensor 60 installed inside the manhole 1 and outputting a fire detection signal by detecting heat generated in a fire;
Receives the first movement detection signal and the second movement detection signal from the first movement detection sensor 30 and the second movement detection sensor 40, respectively, and outputs an alarm signal and a danger signal, respectively, from the fire detection sensor 60 The control unit 70 receives the fire detection signal and outputs a fire hydrant operation signal, receives the water level detection signal from the water level detection sensor 50, and outputs a flood warning signal and simultaneously controls the operation of the pump 100 and the lamp 110. ):
The injection valve 81 is operated and controlled by the hydrant operation signal of the control unit 70, and the fire extinguishing liquid filled therein is sprayed to the fire zone inside the manhole 1 through the injection valve 81 to extinguish the fire. Fire hydrant (80):
Transmitter 90 for receiving an alarm signal or a danger signal or a flood warning signal from the control unit 70 to transmit to the outside:
The suction pipe 101 and the discharge pipe 102 are provided on one side and the other side, respectively, and are installed on the ground, and are controlled by the control unit 70 to suck the rain inside the manhole 1 through the suction pipe 101 to discharge the discharge pipe. Pump 100 discharged to the outside through 102:
Is installed on the ground, the operation control by the control unit 70, the conduit for the protection of the distribution-type underground line, characterized in that it comprises a lamp 110 for emitting light to the outside.

Images