KR102643698B1 - Detector for failure section of underground distribut - Google Patents

Abstract

The present invention includes: a first settlement notification unit disposed inside the opening of an underground power outlet to detect settlement of a distribution line; A distribution line mounting member connected to the first settlement notification unit and inserted into the ground, and supporting the distribution line by mounting it; A second settlement notification unit installed on the inner floor of the underground power outlet and including an upper plate on which the distribution line holding member is seated, and an elastic spring installed between the upper plate and the lower plate; A restraining part that restrains or releases the distribution line mounted by the mounting member; A first connection part connecting or separating the first settlement notification part and the distribution line mounting member; A second connection part connecting or separating the second settlement notification part and the distribution line mounting member; and a release unit that disconnects the detection device from the distribution line by simultaneously disconnecting the restraint unit, the first connection unit, and the second connection unit.

Description

Fault section detection device for underground distribution lines {DETECTOR FOR FAILURE SECTION OF UNDERGROUND DISTRIBUT}

The present invention relates to a device for detecting a fault section of an underground distribution line. More specifically, the present invention relates to a device for detecting a fault section of an underground distribution line. More specifically, it is capable of checking the bending and sinking section of a distribution line installed long along an underground power tunnel and installing a detection device on an already installed distribution line. It is an underground distribution line that can be easily installed, allows workers to safely replace distribution lines without holding them when replacement of the detection device is in progress, and reduces the time and cost required for distribution line installation and replacement work. This relates to a furnace failure section detection device.

In general, overhead wire installation is a method of arranging electric wires through electric poles at regular intervals. It was a widely used installation method because the initial equipment cost was relatively low.

However, recently, in order to improve the beautification of urban areas, the underground facility method of burying electric wires underground so that the electric wires are not visible from the outside is becoming popular.

Since these underground facilities are a method of burying electric wires, it is important to secure space for burying electric wires. Additionally, since electric wires carry high-voltage electricity for distribution, a space blocked from the outside is required.

Meanwhile, underground distribution lines are power cables that transmit ultra-high voltage and are installed in underground power outlets.

Conventionally, in order to prevent accidents on underground distribution lines, an inspector enters the underground power tunnel and visually inspects the underground distribution lines or performs measurements using measuring equipment.

However, due to the nature of underground pipes, there are problems in terms of safety of inspectors and reliability of work, and there is a problem of manpower consumption due to the need to perform preventive inspection and management work on a regular basis.

In addition, even if power facilities such as ventilation facilities and lights in the underground power outlet do not operate normally, there is a problem in that this cannot be confirmed unless the worker directly enters the underground power outlet.

Inspection of underground distribution lines using existing measuring equipment was performed focusing on the joints of distribution lines with a high possibility of partial discharge. However, as external damage factors such as road vibration gradually increase, the inspection system centered on the joints is being developed to cover all sections of underground distribution lines. There is a need for expansion.

Korean Patent Publication No. 10-1786948 (announced on October 18, 2017)

The problem of the present invention, which was devised to solve the above-mentioned problems, is to be able to check the bending and sinking sections of distribution lines installed long along underground power tunnels, and to easily install a detection device on existing distribution lines. , When replacing the detection device, workers can safely replace the distribution line without holding the distribution line, and detect faulty sections of underground distribution lines that can reduce the time and cost required for distribution line installation and replacement work. The purpose is to provide a device.

The present invention includes: a first settlement notification unit disposed inside the opening of an underground power outlet to detect settlement of a distribution line; A distribution line mounting member connected to the first settlement notification unit and inserted into the ground, and supporting the distribution line by mounting it; A second settlement notification unit installed on the inner floor of the underground power outlet and including an upper plate on which the distribution line holding member is seated, and an elastic spring installed between the upper plate and the lower plate; A restraining part that restrains or releases the distribution line mounted by the mounting member; A first connection part connecting or separating the first settlement notification part and the distribution line mounting member; A second connection part connecting or separating the second settlement notification part and the distribution line mounting member; and a release unit that disconnects the detection device from the distribution line by simultaneously disconnecting the restraint unit, the first connection unit, and the second connection unit.

In addition, the first subsidence notification unit of the present invention has a through hole formed in the center, a support protrusion is formed to protrude upward on the outside of the through hole, and a contact sensor is provided on the upper surface, and when an object contacts the contact sensor, A base block equipped with a warning light that lights up and fixedly installed inside the opening of the underground power outlet; and a transparent case disposed inside the opening of the underground power outlet, coupled to the support protrusion and covering the upper side of the base block, but with the upper surface exposed to the ground surface.

In addition, the second subsidence notification unit of the present invention is installed on the inner floor of the underground power outlet, and has a proximity sensor on the upper surface that detects the position of the upper plate and when the upper plate approaches within a certain distance due to the load of the distribution line holding member. A lower plate equipped with a speaker that outputs an alarm; an upper plate that is spaced apart from the lower plate and faces each other, and on which a distribution line holding member is seated; and an elastic spring installed between the upper plate and the lower plate.

In addition, the restraining part of the present invention includes a plurality of restraining protrusions installed to protrude in the inner direction of the mounting groove formed by opening on one side of the distribution line mounting member; a restraining spring that provides elastic force to maintain the restraining protrusion in a protruding state toward the inside of the mounting groove; and a release part that opens the mounting groove by inserting the plurality of restraining protrusions into the distribution line mounting member.

The fault section detection device of the underground distribution line according to the present invention can detect ground faults in the distribution line by outputting a detection signal that can confirm the bending and sinking section of the distribution line installed long along the underground power outlet. A first connection part that connects the distribution line mounting member supporting the furnace and the connection bar in a one-touch method, a second connection part that connects the mounting member and the second settlement notification part in a one-touch method, and the connection status of the second connection part and the second connection part. Since a releasing part and an interlocking part are provided to simultaneously release, the time and cost required for installation and replacement of the detection device can be reduced, and there is an advantage in preventing safety accidents that occur during the installation and replacement work of the detection device. .

Figure 1 is a configuration diagram showing a device for detecting a fault section of an underground distribution line according to an embodiment of the present invention.
Figure 2 is a cross-sectional view showing a device for detecting a fault section of an underground distribution line according to an embodiment of the present invention.
Figure 3 is a configuration diagram showing the first connection part and the second connection part of the apparatus for detecting a fault section of an underground distribution line according to an embodiment of the present invention.

Hereinafter, an embodiment of a fault section detection device for an underground distribution line according to the present invention will be described with reference to the attached drawings.

In this process, the thickness of lines or sizes of components shown in the drawings may be exaggerated for clarity and convenience of explanation.

In addition, the terms described below are terms defined in consideration of functions in the present invention, and may vary depending on the intention or custom of the user or operator.

Therefore, definitions of these terms should be made based on the content throughout this specification.

Figure 1 is a configuration diagram showing a device for detecting a fault section of an underground distribution line according to an embodiment of the present invention, and Figure 2 is a cross-sectional view showing a device for detecting a fault section of an underground distribution line according to an embodiment of the present invention. , Figure 3 is a configuration diagram showing the first connection and the second connection of the device for detecting a fault section of an underground distribution line according to an embodiment of the present invention.

Referring to FIGS. 1 to 3, the apparatus for detecting a faulty section of an underground distribution line according to an embodiment of the present invention includes a first subsidence notification unit 100, a guide unit 200, a distribution line support unit 300, and a first subsidence notification unit 100. 2 It consists of components including a settlement notification unit 400, a restraint unit 700, a first connection unit 730, a second connection unit 750, a linkage unit 770, and a length adjustment unit 780. It is explained in detail as follows.

The first subsidence notification unit 100 detects subsidence of the distribution line (S) and includes a base block 110 and a transparent case 120.

The base block 110 is fixedly installed inside the opening of the underground power outlet (A). A through hole 111 passing upward and downward is formed in the center of the base block 110. And, on the outside of the through hole 111, a support protrusion 112 for attaching the transparent case 120 is formed to protrude upward.

In addition, a contact sensor 113 is provided on the upper surface of the base block 110, with which the contact pin 331 is contacted as the distribution line support 300, which will be described later, sinks, and the contact pin 331 is attached to the contact sensor 113. A warning light 114 that lights up when contacted is provided.

The transparent case 120 is disposed inside the opening of the underground power outlet (A), and is coupled to the support protrusion 112 formed on the base block 110 with the upper surface exposed to the ground surface to form the upper side of the base block 110. will cover the whole.

The guide unit 200 is accommodated inside the underground power outlet (A) and consists of a first guide pipe 210 and a second guide pipe 220.

The first guide pipe 210 has a coupling plate 211 coupled to the lower side of the base block 110 through a bolt at the top, and a fixing bolt (B) is fastened to the lower end and is formed on the base block 110. It is coupled to the base block 110 to communicate with the through hole 111.

The second guide tube 220 is inserted inside the first guide tube 210, and is exposed downward from the first guide tube 210 by a fixing bolt (B) to adjust its length.

At this time, on the outer surface of the second guide tube 220, a plurality of locking grooves 221 into which the fixing bolts (B) are inserted are formed to be spaced apart in the longitudinal direction of the second guide tube 220, so that the first guide tube ( The second guide tube 220, which is exposed downward at 210 and whose length is adjusted, can be fixed to the first guide tube 210.

In addition, the fixing bolt (B) is provided with a length adjustment part (780), so that when the worker pulls the fixing bolt (B) outward, the fixing bolt (B) protrudes outward from the guide part (200) and is fixed to the locking groove (221). When the bolt (B) is separated and the worker releases the fixing bolt (B), the fixing bolt (B) is inserted into the locking groove (221) to complete the length adjustment.

The length adjusting part 780 of this embodiment includes an extension shaft 784 extending outward from the fixing bolt B, a release lever 786 provided at the end of the extension shaft 784, a fixing bolt B, and It includes a third elastic member 788 that is interposed between the cases formed on the outer wall of the first guide pipe 210 and presses the fixing bolt (B) toward the locking groove 221.

Therefore, when the worker holds the release lever (786) and pulls it outward, the extension shaft (784) and the fixing bolt (B) move to the outside of the locking groove (221) and the restraint of the second guide pipe (220) is released, allowing length adjustment. When the release lever 786 is released after the length adjustment is completed, the compressed third elastic member 788 expands and presses the fixing bolt (B) toward the locking groove 221 to connect the first guide pipe 210 and the third elastic member 788. 2 The guide pipe 220 is connected and fixed in a state where length adjustment cannot be performed.

The distribution line support portion 300 is accommodated inside the underground power tunnel (A) and sinks together with the subsidence of the distribution line (S), and connects the distribution line holding member 310 and the connecting bar 320 or It includes a first connection part 730 that separates, and a second connection part 750 that connects or separates the distribution line holding member 310 and the second settlement notification unit 400.

The distribution line mounting member 310 has a mounting groove 311 into which the distribution line (S) is inserted is formed in the center, one side is open, and pressure measuring means for measuring the force acting in the outer direction of the distribution line (S) (312) is provided, and a connection bracket 313 is protruded at the top so as to be compatible, and a pair of guide members 314 are installed at the bottom so as to be compatible while maintaining a gap.

Here, the pressure measuring means 312 is a plurality of pressure sensors 312a mounted spaced apart along the inner diameter surface of the through hole 311 formed in the distribution line holding member 310 in contact with the outer diameter surface of the distribution line (S). ) includes.

Here, the pressure measuring means 312 may be configured to include a control unit. At this time, the control unit may be composed of a receiving module, a judgment module, and an alarm module.

The receiving module receives the pressure value of the distribution line (S) measured by each pressure sensor (312a).

The determination module determines whether the pressure values of the distribution line (S) received by the receiving module are equal to each other.

The alarm module sends out at least one of the light source and sound to the outside when the pressure values of the distribution line (S) measured by the pressure sensor by the judgment module are unequal, that is, when the distribution line (S) is bent. It serves as an output.

When the distribution line (S) subsides, the connection bar 320 and the contact rod 330 of the distribution line support unit 300 sink together, and when the distribution line (S) continues to sink, the contact pin of the contact rod 330 (331) comes into contact with the contact sensor (113). Then, a signal is generated from the contact sensor 113 and the warning light 114 operates.

The second subsidence notification unit 400 corresponds to a lower plate 410 installed on the inner floor of the underground power conduit (A), and the lower plate 410 is spaced upward and downward to face each other, but includes a distribution line holding member 310. It has an upper plate 420 seated on the upper surface, and an elastic spring 430 installed between the upper plate 420 and the lower plate 410.

Here, a proximity sensor 411 and a speaker 412 that detect the position of the upper plate 420 are provided on the upper surface of the lower plate 410, and the upper plate 420 is kept constant due to the load of the distribution line holding member 310. When approaching within distance, an alarm is output through the speaker 412.

Meanwhile, an electric air compressor 500 may be provided outside the transparent case 120.

In addition, it is preferable that an air flow path 115 through which compressed air generated by the air compressor 500 is transferred to the inside of the transparent case 120 is formed in the base block 110.

To elaborate, when the contact pin 331 contacts the contact sensor 113 due to the sinking of the distribution line (S), compressed air from the air compressor 500 is injected into the interior of the transparent case 120, thereby forming the transparent case 120. ) The transparent case 120 is raised by the internal pressure, and the upper side of the transparent case 120 protrudes to the ground through the opening of the underground power outlet (A).

At this time, in order to prevent the transparent case 120, which is raised by the internal pressure of the transparent case 120, from being separated from the base block 110, a locking protrusion 121 protruding inward is provided at the lower end of the transparent case 120. A locking protrusion 112a is formed at the end of the support protrusion 112 corresponding to the locking protrusion 121 to prevent the transparent case 120 from being separated from the base block 110. It becomes possible.

The first connection portion 730 of this embodiment includes a first connection hook 732 installed to protrude through the connection bracket, and a first coupling groove formed on the connection bar into which the first connection hook 732 is engaged ( 734), a first elastic member 736 that provides an elastic force to press the first connection hook 732 toward the first coupling groove 734, and a distribution line holding member 311 from the back of the first connection hook 732. ) Includes a first release wire 738 extending outward.

In addition, the second connection portion 750 of this embodiment is formed on a block that protrudes from the upper plate and a second connection hook 752 installed to protrude through the guide member, so that the second connection hook 752 is engaged. From the second coupling groove 754, the second elastic member 756 that provides an elastic force to press the second connection hook 752 toward the second coupling groove 754, and the back of the second connection hook 752. It includes a second release wire 758 extending to the outside of the distribution line mounting member 311.

In addition, the interlocking portion 770 of this embodiment includes an interlocking wire 772 extending to the outside of the distribution line holding member 311 by connecting the first release wire 738 and the second release wire, and an interlocking wire 772. It includes a lever member 774 installed at the end of.

Therefore, when the worker pulls the lever member 774 to the outside of the distribution line holding member 311, tension is provided to the interlocking wire 772, the first release wire 738, and the second release wire 758 at the same time, so that the first connection hook (732) and the second connection hook (752) simultaneously retreat to the inside of the distribution line holding member (311) and are separated from the first coupling groove portion (734) and the second coupling groove portion (754) from the connection bar and the second settlement notification portion. The distribution line mounting member 311 is separated at the same time.

As described above, the distribution line is simultaneously separated from the connection bar and the second settlement notification unit by a single operation of pulling the lever member 774, so when the life of the detection device is completed and the replacement work is performed, the time required for the detection device replacement work is and costs can be reduced, and when installing the detection device, the distribution line can be pressed into the opening of the distribution line mounting member 311 and the pair of restraining protrusions 710 can be retreated to the inside of the mounting member and simply connected to the existing The detection device can be easily installed on distribution lines that were installed in the system, and safety accidents that may occur during the detection device installation work can be prevented.

As a result, it is possible to check the bending and subsidence sections of distribution lines installed long along underground power tunnels, the detection device can be easily installed on already installed distribution lines, and when the replacement work of the detection device is in progress, workers can check the distribution line. It is possible to safely replace a distribution line without holding a fault, and provide a fault detection device for an underground distribution line that can reduce the time and cost required for distribution line installation and replacement work.

The present invention has been described with reference to an embodiment shown in the drawings, but this is merely illustrative, and various modifications and other equivalent embodiments can be made by those skilled in the art. You will understand.

In addition, although the description was made by taking the fault section detection device of an underground distribution line as an example, this is only an example, and the detection device of the present invention can be used in products other than the fault section detection device of an underground distribution line.

Therefore, the true technical protection scope of the present invention should be determined by the scope of the patent claims below.

100: first settlement notification unit 110: base block
111, 311: Through hole 112: Support protrusion
112a: Locking jaw 113: Contact sensor
114: warning light 115: air flow path
120: Transparent case 121: Stumbling protrusion
200: Guide unit 210: First guide tube
211: coupling plate 220: second guide pipe
221: Locking groove 300: Distribution line support part
310: Distribution line mounting member 311: Mounting groove part
312: pressure measuring means 312a: pressure sensor
313: Connection bracket 314: Guide member
320: connecting bar 320a: coupling hole
321: Coupler 330: Contact rod
331: Contact pin 400: Second settlement notification unit
410: Lower plate 411: Proximity sensor
412: Speaker 420: Top plate
430: Elastic spring 500: Air compressor
700: restraint part 710: restraint protrusion
712: Confinement spring 714: Release part
716: wire member 718: lever member
730: first connection part 732: first connection hook
734: first coupling groove 736: first elastic member
738: first release wire 750: second connection part
752: Second connection hook 754: Second coupling groove
756: second elastic member 758: second release wire
770: Linkage part 772: Linkage wire
774: Lever member 780: Length adjustment part
784: Extension shaft 786: Release lever
788: Third elastic member
A: Underground power outlet B: Fixing bolt
S: Distribution line

Claims (4)

A first settlement notification unit disposed inside the opening of the underground power outlet to detect settlement of the distribution line;
A distribution line mounting member connected to the first settlement notification unit and inserted into the ground, and supporting the distribution line by mounting it;
A second settlement notification unit installed on the inner floor of the underground power outlet and including an upper plate on which the distribution line holding member is seated, and an elastic spring installed between the upper plate and the lower plate;
A restraining part that restrains or releases the distribution line mounted by the mounting member;
A first connection part connecting or separating the first settlement notification part and the distribution line mounting member;
A second connection part connecting or separating the second settlement notification part and the distribution line holding member; and
A fault section detection device for an underground distribution line, comprising a release portion that disconnects the detection device from the distribution line by simultaneously disconnecting the restraint portion, the first connection portion, and the second connection portion.
The method of claim 1, wherein the first subsidence notification unit,
A through hole is formed in the center, a support protrusion is formed to protrude upward on the outside of the through hole, a contact sensor is provided on the upper surface, and a warning light that turns on when an object touches the contact sensor is provided, inside the opening of the underground power outlet. A base block fixedly installed on; and
A fault section detection device for an underground distribution line, comprising a transparent case disposed inside the opening of the underground power outlet, coupled to the support protrusion and covering the upper side of the base block, but with the upper surface exposed to the ground surface.
The method of claim 2, wherein the second subsidence notification unit,
A lower plate installed on the inner floor of the underground power outlet and equipped with a proximity sensor for detecting the position of the upper plate and a speaker that outputs an alarm when the upper plate approaches within a certain distance due to the load of the distribution line holding member;
an upper plate that is spaced apart from the lower plate and faces each other, and on which a distribution line holding member is seated; and
A fault section detection device for an underground distribution line, comprising an elastic spring installed between the upper plate and the lower plate.
The method of claim 1, wherein the restraint unit,
a plurality of restraining protrusions installed to protrude in an inner direction of a mounting groove opened and formed on one side of the distribution line mounting member;
a restraining spring that provides elastic force to maintain the restraining protrusion in a protruding state toward the inside of the mounting groove; and
A fault section detection device for an underground distribution line, characterized in that it includes a release part that opens the mounting groove by inserting a plurality of the restraining protrusions into the distribution line mounting member.

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