KR102539559B1 - A ground plate for electric pole - Google Patents

Abstract

The present invention relates to a grounding plate for a power distribution pole, which detects the movement of a grounding wire installed on a power distribution pole to help predict a ground wire disconnection and to help predict other anomalies, so that the distribution system can be operated normally through prompt response. It is effective, and also, it is intended to inform the abnormality of the ground wire due to various causes by checking both the upper and lower movements of the ground wire.
The ground plate for distribution poles according to the present invention includes a fixed pipe 10 coupled to a ground wire insertion hole 2 formed in a pole 1 and through which a ground wire 3 is wired through an internal wiring unit 11; a housing 20 suspended and fixed to the fixing tube; a ground clamp (30) mounted on the housing so as to be liftable and to which the ground wire is fixed; an elevation guide means for guiding elevation of the ground clamp; a protective tube 40 fixed to the housing so as to be disposed at the bottom of the ground clamp and into which the ground wire is movably inserted; sensing means for sensing that the ground clamp moves up and down along with the ground wire; Including an alarm notifying the detection result of the sensing unit, the movement of the ground wire is notified.

Description

Ground plate for power distribution pole {A GROUND PLATE FOR ELECTRIC POLE}

The present invention relates to a ground plate for a power distribution pole, and more particularly, to a ground plate for a power distribution pole that checks the movement of a ground wire installed in a power distribution pole.

This section provides background information related to the subject matter of this application and is not necessarily prior art.

In general, distribution poles are installed to support distribution lines by being spaced apart from the floor, and ground wires connected to the floor are installed to prevent lightning or ground fault accidents caused by distribution lines.

As a patent document that can confirm the background art of the present invention, Patent Registration No. 10-0882568 has an inner periphery identical to one of the outer peripheries of the lower part of the electric pole divided into two parts, and the first contact part having a semicircular cross section and the electric pole divided into two equal parts. It consists of a second contact portion having the same inner periphery as the other one of the outer peripheries of the lower portion and having a semicircular cross section, and is fixed along the longitudinal direction of the lower portion of the electric pole. Protrusions are formed at both ends of the first contact portion to form the second contact portion The protrusions are fitted into the insertion grooves formed at both ends, a plurality of through holes are formed from the upper surfaces to the lower portions of the first and second contact parts, and a plurality of spiral fastening holes are formed in the longitudinal direction of the protrusions, and the insertion grooves are formed in the protrusions. A spiral coupling hole communicating with the spiral coupling hole is formed in the partition wall of the second close contact portion forming the close contact portion having a structure in which the first and second close contact portions are fixed to the support hole formed in the lower portion of the electric pole through a fastening bolt, and ; A fitting through hole installed on the pole and extending downward into which the end of the in-ha line can be inserted is formed at the upper end, and a plurality of spiral fixing holes are formed along the outer periphery of the upper end and in the vertical direction, so that the in-ha line a grounding rod having an end fixed to the through hole and having a size that can be inserted into the through hole; A rectangular fitting hole communicating with the through hole is formed on the lower outer surfaces of the first and second contact parts, and one side thereof is fitted into the fitting hole, and one side of the fitting hole is a conducting hole through which the grounding rod can pass. It is a ground plate for distribution poles composed of; a ground panel formed thereon.

Patent Registration No. 10-1381805 discloses a disconnection detection unit having a disconnection detection line positioned on an outer surface of a ground wire to surround the outer surface, a detection signal generator connected to one side of the disconnection detection line and outputting a disconnection detection signal, the A detection signal receiving unit connected to the other side of the disconnection detection line to receive the disconnection detection signal transmitted through the disconnection detection line, measuring a frequency magnitude and impedance corresponding to a reception state, and outputting the signal as a disconnection detection line status signal, and the detection It is connected to a signal receiving unit and reads the disconnection detection line state signal received from the detection signal receiving unit to determine frequency magnitude and impedance, and compares at least one of the determined frequency magnitude and impedance with at least one of reference frequency magnitude and reference impedance. and a control unit for determining the state of the ground wire, wherein the control unit determines that the frequency of the disconnection detection line status signal is set to a set frequency and determines that the disconnection detection signal is not received by the detection signal receiver. It is a ground wire state monitoring device that determines the state of the ground wire as a disconnected state.

Conventional grounding facilities of distribution poles only have a technique for confirming the disconnection of the grounding line, but do not detect the movement of the grounding line.

Registered Patent No. 10-0882568 Registered Patent No. 10-1381805

The present invention is to solve the above-mentioned problems, to provide a ground plate for distribution poles that can check the disconnection state of the ground wire through the movement of the ground wire installed on the distribution pole and can be used for prediction of other abnormal phenomena. It has a purpose.

A grounding plate for a power distribution pole according to the present invention includes a fixed pipe through which a ground wire is inserted into a ground wire insertion hole formed in an electric pole and inserted into a ground wire through a hollow part therein; a housing suspended and fixed to the fixing tube; a grounding clamp movably mounted on the housing and fixed to the grounding wire; an elevation guide means for guiding elevation of the ground clamp; a protective tube fixed to the housing so as to be disposed on the bottom of the ground clamp and into which the ground wire is movably inserted; sensing means for sensing that the ground clamp moves up and down along with the ground wire; It is characterized in that the movement of the ground wire is confirmed through the sensing means, including an alarm notifying the detection result of the sensing means.

According to the ground plate for distribution poles according to the present invention, the movement of the ground wire installed in the distribution pole is sensed to help predict the disconnection of the ground wire and to predict other abnormalities, thereby operating the distribution system normally through prompt response It is effective, and also has an effect of improving reliability as a grounding facility by notifying the abnormality of the grounding wire due to various causes by checking both the upper and lower movement of the grounding wire.

1 is an exploded perspective view of a ground plate for a power distribution pole according to the present invention;
2 is a cross-sectional view of an installation state of a ground plate for a power distribution pole according to the present invention.
3 and 4 are views showing an example of adjusting the height of a housing applied to a ground plate for a power distribution pole according to the present invention.
5 is an operating state diagram of a ground plate for a power distribution pole according to the present invention.

In the following description of the present invention, if 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 detailed description will be omitted. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or custom of a user or operator. Therefore, the definition should be made based on the contents throughout this specification.

As shown in FIGS. 1 and 2, the ground plate for distribution poles according to the present invention is fixed to the ground wire insertion hole 2 of the pole 1 through the fixed tube 10 and the fixed tube 10 A housing 20 installed inside the housing 20, a ground clamp 30 mounted on the housing 20 and to which the ground wire 3 is fixed, and a protective tube 40 that protects the lower portion of the ground wire 3 clamped to the ground clamp 30. ), the upper level sensor 50 and the lower level sensor 60 detecting the vertical movement of the ground clamp 30, and an alarm informing the manager of the detection signals of the upper level sensor 50 and the lower level sensor 60 ( 70).

The fixed pipe 10 is for fixing the ground wire 3 installed from the top of the pole 1 to the ground, and the ground wire 3 is wired from the outside to the inside through the ground wire insertion hole 2 of the pole 1 A state in which a hollow wiring part 11 is provided inside as much as possible and an outlet 12 through which the ground wire 3 is drawn out is included at the bottom of the center approximately, and the ground wire 3 is wired inside the electric pole 1 An inlet portion 13 communicating with the wiring portion 11 is included at the top for grounding in the case.

The wiring unit 11 includes a guide unit 14 for guiding the ground wire 3 to the outlet 12 . The guide portion 14 is in the form of a wall that blocks the wiring portion 11 and guides the ground wire 3 to the outlet 12 .

The fixing pipe 10 is a length that protrudes out of the pole 1 through the ground wire insertion hole 2 formed on both sides of the pole 1, and a screw thread is formed on the outer circumferential surface, so that each nut 15 on both sides Is fixed to the electric pole (1) by being screwed.

When the ground wire insertion hole 2 is formed on only one side, a hole for fixing the fixing pipe 10 is also formed on the opposite side.

The housing 20 includes two hangers 21 suspended from the fixed tube 10 and a clamp housing 22 formed at the bottom of the hanger 21, and after being inserted into the electric pole 1, the hanger ( 12) is connected to and fixed to the fixed tube (10).

The hanger 21 is in the form of a bar in the vertical direction, and includes a hanger hole through which the fixing tube 10 passes through the upper part and is connected to the clamp housing 22 at the bottom.

The clamp housing 22 is cylindrical and is installed so as to be suspended in the electric pole 1 through the hanger 21 and accommodates the ground wire clamp 30, and in particular, the ground wire clamp 30 can be moved up and down within a certain height.

The clamp housing 22 includes a guide protrusion 23 formed in the vertical direction on the inner circumferential surface as a lifting guide means so that the ground wire clamp 30 can be moved up and down without shaking.

On the other hand, the housing 20 is also configured to adjust the initial position of the ground wire clamp 30 by adjusting the height of the clamp housing 22, and as shown in FIGS. 3 and 4, the hanger 21 is a bar In form, the clamp housing 22 is manufactured as a single unit in a cylindrical shape, and the hanger 21 is formed with multi-level height adjustment holes 24, while the clamp housing 22 has any one of the multi-level height adjustment holes 24. A fastening hole 25 communicating with is included, and the fastener 26 is fastened to any one height adjustment hole 24 and the fastening hole 25, so that the hanger 21 and the clamp housing 22 are coupled, at this time The position of the ground wire clamp 30 can be changed by changing the height of the clamp housing 22, and as a result, the clamping position of the ground wire 3 can be adjusted.

The ground wire clamp 30 includes a cylindrical clamp 31 into which the ground wire 3 is inserted, a bolt-type fastener 32 fixing the ground wire 3 inserted into the cylindrical clamp 31, and a cylindrical clamp 31 ) It extends along the lateral direction from the circumference of the sliding bar 34 having a guide groove 33 supported to be lifted up and down by the guide protrusion 23 at the end, formed on the circumference of the cylindrical clamp 31, and upper It includes a sensor rod 35 that operates the level sensor 50 and the lower level sensor 60.

The clamp 31 has a cylindrical shape into which the ground wire 3 is inserted from top to bottom.

The fastener 32 is screwed into the clamp 31 and can be moved forward and backward toward the inside of the clamp 31, and the ground wire 3 and the clamp press the ground wire 3 inserted into the clamp 31 through the forward movement. 31 is fixed, and therefore, when the ground wire 3 moves up and down, the clamp 31 also moves up and down.

The part of the ground wire 3 fixed to the clamp 31 by the fastener 32 is spaced upward from the lower end based on the installation state of the ground wire 3.

Two or more sliding bars 34 are formed in the form of wings on the circumference of the clamp 31, and the guide groove 33 at the end is movably connected to the guide protrusion 23 in the clamp housing 22. Through this structure, the clamp 31 can move up and down without fluctuation.

The guide protrusion 23 and the guide groove 33 are formed on opposite sides, that is, at two places.

A bearing or wheel may be added between the guide protrusion 23 and the guide groove 33 so that the clamp 31 moves upward and downward more smoothly, or a surface treatment may be performed to reduce slip resistance.

The sensor rod 35 moves up and down together with the clamp 31 and operates the upper level sensor 50 when ascending and operates the lower level sensor 60 when descending.

When the ground wire (3) is pulled and rises, if the sensor rod (35) blocks the rise of the ground wire (3), a disconnection may occur at the upper part of the ground wire (3), which may cause a larger accident, so the ground wire (3) ) The sensor rod 35 includes a fracture guide portion 35a so as not to prevent the rise when the height exceeds a certain width.

The fracture guide part 35a is formed in a thin thickness on a part of the sensor rod 35, and its position is away from the upper level sensor 50, and therefore, the outer side with respect to the fracture guide part 35a The silver is removed from the clamp 31 and the remaining part rises with the clamp 31.

Even if the upper level sensor 50 and the lower level sensor 60 are formed on only one side, the sensor rod 35 is formed symmetrically with respect to the clamp 31 to balance the clamp 31.

The sliding bar 34 and the sensor rod 35 may be integrated into the clamp 31 or assembled (screwed).

The ground wire clamp 30 of this configuration is made of a lightweight material because it must move up and down by the movement of the ground wire 3 when the ground wire 3 moves up and down, and the force to pull the ground wire 3 must be small.

In addition, an elastic member for elastically supporting the ground wire clamp 30 at the bottom or between the bottom and top may be included as needed. The elastic member is, for example, a coil spring whose bottom portion is fixed to the housing 20 (spoke 41 of the protective tube 40) and whose upper portion supports the bottom portion of the sliding bar 34 or sensor rod 35.

The protective tube 40 is for grounding the lower end of the ground wire 3 inserted into the ground wire clamp 30 to the ground, and is disposed at the lower portion of the ground wire clamp 30 to maintain a fixed position even if the ground wire clamp 30 moves up and down. It is fixed to the housing 20, and in that way, a plurality of spokes 41 are formed on the circumference and connected (integrated or assembled) to the inner circumferential surface of the housing 20.

The protective tube 40 has an inner diameter larger than the outer diameter of the clamp 31 of the ground wire clamp 30 so as not to interfere with the descent of the ground wire clamp 30, and at this time, the sliding bar 34 and the sensor rod 35 An inserted structure (groove opening toward the top) is also included.

It is preferable that the protection tube 40 be configured in a length-adjustable manner in order to ground the ground wire 3 to the ground even if the initial position of the ground wire clamp 30 changes, and for example, two tubes with different diameters are connected flexibly do.

The upper level sensor 50 and the lower level sensor 60 are respectively disposed on the upper and lower portions of the sensor rod 35 on the basis of the sensor rod 35 in the elevation path of the sensor rod 35 of the ground wire clamp 30, and the sensor rod 35 A detection signal is wirelessly transmitted to the alarm 70 by proximity or contact.

The upper level sensor 50 and the lower level sensor 60 may be fixed to the housing 20 after setting the initial position of the ground wire clamp 30 .

The alarm 70 is installed in a remote control room away from the electric pole 1, generates a warning sound by signals transmitted from the upper level sensor 50 and the lower level sensor 60, or classifies it in stages to ensure a safety level (blue light). ) - warning level (yellow light) - danger level (red light).

In addition, the alarm 70 is preferably divided into a high-level alarm that operates based on the signal of the high-level sensor 50 and a low-level alarm that operates based on the signal of the low-level sensor 60 .

For the present invention, the electric pole 1 may include a work tool 4 for checking the inside from the outside and setting the position of the ground wire clamp 30, and a cover 5 for opening and closing the work tool 4 .

The action of the ground plate for distribution poles according to the present invention is as follows.

1. Grounding.

When the ground wire 3 is installed with the state of FIG. 2 as the initial position, the lower end of the ground wire 3 is buried in the ground and electrically connected to the ground. At this time, the ground wire 3 is fixed to the ground wire clamp 30 is in a state of being

2. Ground wire rise.

In the state of FIG. 2, when the ground wire 3 is pulled from the top of the electric pole 1, the ground wire clamp 30 together with the ground wire 3 is a lifting guide means (guide groove 33 of the sliding bar 34 and It rises through the guide protrusion 23 of the housing 20.

As shown in (A) of FIG. 5, when the sensor rod 35 touches or approaches the upper level sensor 50 while the ground wire clamp 30 rises, the upper level sensor 50 transmits a signal and an alarm 70 It works.

The administrator determines that the ground wire 3 is pulled upward through the alarm 70 (high level alarm), and prepares a cause investigation and countermeasures accordingly.

On the other hand, when the rising force continues to act on the ground wire 3 after the sensor rod 35 operates the upper level sensor 50, the sensor rod 35 having the force to move and the higher level sensor in a fixed state A large force is applied to (50), and when a force of a certain size or more is applied, the sensor rod 35 is broken through the fracture guide portion 35a so that the ground wire clamp 30 rises further, and thus, the ground wire 3 Disconnection can be prevented from the upper side of the .

3. Drop the ground wire.

In the state of FIG. 2, when the ground wire 3 goes down, the ground wire clamp 30 together with the ground wire 3 guides the lifting guide means (the guide groove 33 of the sliding bar 34 and the guide of the housing 20). It descends through the protrusion 23).

As shown in (B) of FIG. 5, when the sensor rod 35 contacts or approaches the lower level sensor 60 while the ground wire clamp 30 descends, the upper level sensor 60 transmits a signal and an alarm 70 It works.

The administrator determines that the ground wire 3 has gone down through the alarm 70 (low level alarm), and prepares a cause investigation and countermeasures accordingly.

1: electric pole, 2: ground wire insertion hole
3: ground wire, 4: work hole
5: cover,
10: fixed pipe, 11: wiring part
12: outlet, 13: inlet
14: guide part, 15: nut
20: housing, 21: hanger
22: clamp housing, 23: guide protrusion
24: height adjustment ball, 25: fastening ball
26: fastener,
30: ground wire clamp, 31: clamp
32: fastener, 33: guide groove
34: sliding bar, 35: sensor rod
40: protective pipe, 41: spoke
50: upper level sensor, 60: lower level sensor
70: alarm,

Claims (4)

A fixed pipe 10 coupled to the ground wire insertion hole 2 formed in the electric pole 1 and through which the ground wire 3 is wired through the internal wiring unit 11;
a housing 20 suspended and fixed to the fixing tube;
a ground clamp (30) mounted on the housing so as to be liftable and to which the ground wire is fixed;
an elevation guide means for guiding elevation of the ground clamp;
a protective tube 40 fixed to the housing so as to be disposed at the bottom of the ground clamp and into which the ground wire is movably inserted;
sensing means for sensing that the ground clamp moves up and down along with the ground wire;
Including an alarm notifying the detection result of the sensing means, notifying the movement of the ground wire,
The ground clamp includes a cylindrical clamp 31 into which the ground wire is inserted, a fastener 32 connected to the clamp so as to be able to move forward and backward to fix the ground wire inserted into the clamp, and formed on the circumference of the clamp and at the end A ground plate for a power distribution pole, characterized in that it includes a sliding bar 34 that moves up and down along the inner surface of the housing, and a sensor rod 35 formed on the circumference of the clamp and operating the sensing means.
The method according to claim 1, wherein the sensing means is installed on the upper part of the ground clamp and transmits a signal to the alarm by the contact of the ground clamp (50), installed on the lower part of the ground clamp and contact of the ground clamp A ground plate for a power distribution pole, characterized in that it comprises a low level sensor (60) for transmitting a signal to the alarm. The method according to claim 1 or claim 2, wherein the housing includes two hangers 21 fixed to the fixing pipe, and a clamp housing 22 connected to the hanger and to which the ground clamp is mounted, and the clamp housing is attached to the hanger. A ground plate for a power distribution pole, characterized in that it is connected in an adjustable height. The ground plate for electric poles of claim 1, wherein the sensor rod includes a breakage guide portion (35a) formed of a thin thickness, so that when the ground wire rises, the sensor bar is broken after activating the sensing means.

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