KR101933082B1 - Grounding apparatus of power transmission line - Google Patents

Abstract

The present invention relates to a grounding tool for an ultra-high voltage transmission line, and more particularly, to a grounding tool for an ultra-high voltage transmission line, more specifically, And a grounding tool for an ultra-high voltage transmission line so that the support from the vertical support to the horizontal support rod can be stably performed.

Description

{GROUNDING APPARATUS OF POWER TRANSMISSION LINE}

The present invention relates to a grounding device for an ultra high voltage transmission line in the field of transmission technology, and more particularly, to a grounding device for an ultra high voltage transmission line, which increases the number of terminals on a tower side to two, increases the ground plane of a terminal on a tower side, To a grounding tool for an ultra-high voltage transmission line so as to reliably support the horizontal support rods from the vertical support rods.

Generally, a steel tower for a transmission line connects a plurality of transmission lines to each other. Such transmission lines are subjected to climatic influences such as wind, snow, and rain, Respectively.

Such a steel tower may take various forms such as a quadrangle tower, a square tower, a door tower, a coward tower, a rotating tower, and a MC tower in consideration of the topography and the like as shown in FIG.

As shown in FIG. 2, the grounding tool of the conventional power transmission line has a receiving ring 1-2 on one side of the first body 1-1, and a transmission line accommodated in the receiving ring 1-2 Side terminal (1) to which the tightening member (1-3) for catching is screwed to the other side of the first body (1-1) so as to be transported; A pair of gripping pieces 2-2 are formed on one side of the second body 2-1 and a part of the steel tower accommodated in the gripping pieces 2-2 can be gripped by the gripping pieces 2-2 A bolt for pushing one gripping piece 2-21 so as to be capable of being transferred to the other side of the second body 2-1; And a wire 3 connecting the wire-side terminal 1 and the steel-tower-side terminal 2.

However, as shown in FIG. 2, the terminal of the tower has a cross-sectional area in contact with a part of the tower, so that it is difficult to expect a sufficient grounding effect. However, There is a problem that the thread is broken by excessive force during the tightening operation of the screw, and there is also a possibility of safety accident due to breakage.

As a conventional technique in which such a problem is partially improved, Korean Patent Registration No. 10-1479229 (Aug. 1, 2015) discloses an interlock type grounding apparatus for a transmission line.

However, such a conventional earthing apparatus has a problem that it is difficult to stably support the horizontal support rods from the vertical support rods.

Korea Patent Registration No. 10-1479229 (2015.01.08.) 'Interlock system grounding tool for processing transmission line'

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to increase the number of the steel tower side terminals from one existing one to two, increase the ground side of the steel tower side terminal, And it is an object of the present invention to provide a grounding tool for an ultra high voltage transmission line so that the support from the vertical support to the horizontal support rod can be stably achieved.

The problems to be solved by the present invention are not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above-mentioned object, the present invention provides an electric power transmission system comprising: an electric wire side terminal (1) installed in a transmission line; A steel tower side terminal (2) installed on the steel tower; And a wire (3) provided between the wire side terminal (1) and the steel tower side terminal (2), the steel tower side terminal (2) comprising: a vertical support (100); A horizontal support 200 inserted into the vertical support 100; And a butterfly nut 300 binding the horizontal support 200 to the vertical support 100. The vertical support 100 has an insertion slot 120 formed therein and an upper end thereof is downwardly The horizontal support 200 is disposed at a lower portion of the vertical clamp 110 and the horizontal clamp 210 is bent at one end in the direction of the vertical clamp 110, And a support rod 220 having one end connected to the horizontal clamp 210 and the other end passing through the insertion groove 120 and having a thread formed on an outer circumferential surface thereof, The present invention relates to a grounding apparatus for an ultra-high voltage transmission line that connects a horizontal support member 200 to a vertical support member 100 while being screwed to a support rod 220. The vertical support member 100 stably supports the horizontal support member 200 (Not shown) The support unit 400 includes a support 410 fixed to the vertical support 100 so as to be positioned at an upper portion of the support bar 220. A mounting ring 420 coupled to the outside of the support rod 220; A support bar 430 having a lower end connected to the retainer ring 420 and an upper end passing through the retainer 410 and having threads formed on an outer circumferential surface thereof; And an adjusting lever (440) rotatably fixed to the fixing table (410) and threadedly coupled to the supporting bar (430) such that the supporting bar (430) 440 are moved in a state where the butterfly nut 300 is loosened so that the mounting ring 420 is lifted and lowered together with the supporting bar 430 so that the distance between the supporting rod 220 and the fixing table 410 The support bar 430 and the support ring 420 are moved up and down according to the rotation of the butterfly nut 300 while the butterfly nut 300 is tightened, And is supported in a stable manner while being pressurized by the pressurizing member.

According to the present invention, firstly, the effect of preventing personnel accidents in which the worker is guided by the induction current path between the transmission line and the steel tower due to the disengagement of the grounding clamp by fixing the terminal of the steel tower by the vertical support and the horizontal support rod have.

Second, the grounding area of the terminal on the side of the steel tower is increased by the vertical support and the horizontal support rod, and the grounding effect is improved.

Third, there is no possibility that the clamp is released, and the worker has an advantage that the work can be performed in a psychologically stable state.

Fourth, since the vertical support and the horizontal support bar are interlocked with each other, there is an effect that, when one terminal is detached, the other terminal is further tightened.

Fifth, there is an effect that the support from the vertical support to the horizontal support rod can be stably performed.

The effects of the present invention are not limited to those mentioned above, and other solutions not mentioned may be clearly understood by those skilled in the art from the following description.

1 is a front view showing various examples of a general steel tower.
2 is a front view showing a grounding tool of a conventional transmission line.
3 is a perspective view showing a grounding tool of an ultra high-voltage transmission line according to the present invention.
4 is a front view showing a grounding tool of an ultra high voltage transmission line according to the present invention.
5 is a plan view showing a grounding tool of an ultra high voltage transmission line according to the present invention.
6 is an exploded perspective view showing a grounding tool of an ultra high voltage transmission line according to the present invention.
7 is a perspective view showing a vertical support in a grounding tool of an ultra-high voltage transmission line according to the present invention.
8 is a perspective view illustrating a horizontal support member in a grounding tool of an ultra-high voltage transmission line according to the present invention.
FIG. 9 is a state view showing a state in which a grounding tool of an ultra-high voltage transmission line according to the present invention is installed on a pylon arm.
10 is a front view showing a state in which a supporting part is provided in a grounding tool of an ultra-high voltage transmission line according to the present invention.
And
11 is an exploded perspective view showing the support portion in Fig.

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

(Hereinafter referred to as "grounding tool") C of the ultra-high voltage transmission line according to the present invention includes a wire side terminal 1 provided on a transmission line, a steel tower side terminal 2 provided on a steel tower, (1) and a wire tower (2), wherein the steel tower terminal (2) comprises a vertical support (100), a horizontal support (100) inserted into the vertical support 200 and a butterfly nut 300 that binds the horizontal support 200 to the vertical support 100.

That is, the grounding tool C is a tool that is inserted into the vertical support 100 and is bound by the butterfly nut 300.

As shown in FIG. 7, the vertical support 100 is formed to have a narrow width and a long length, and the upper end of the vertical support 100 is bent downward to form a vertical clamp 110.

The vertical support 100 has an insertion groove 120 formed therein and the insertion groove 120 includes a plurality of garden holes 122.

The garden holes 122 are arranged so as to communicate with each other while being arranged in the vertical direction.

The reason why the insertion groove 120 is formed as described above is that the angle of the iron tower arm A is different according to the transmission voltage and the type of the pylon so that the size of the insertion groove 120 is set to be 10.0 mm ), Thereby overcoming the difference in type.

6, the horizontal support 200 includes a horizontal clamp 210 disposed at a lower portion of the vertical clamp 110 and having one end bent in the direction of the vertical clamp 110, And a support rod 220 having one end connected to the horizontal clamp 210 and the other end passing through the insertion groove 120 and forming a thread on the outer peripheral surface.

The vertical clamp 110 of the vertical support 100 and the horizontal clamp 210 of the horizontal support 200 are interlocked with each other so that one of them can not be separated.

The butterfly nut 300 is screwed to the support rod 220 and binds the horizontal support 200 to the vertical support 100.

Hereinafter, the operation according to the present invention constituted as described above will be described.

The vertical clamp 110 of the vertical support 100 constituting the grounding tool C is fixed to the side surface or the vertical surface of the iron tower arm A and the horizontal clamp 210 of the horizontal support 200 ) To the horizontal plane of the steel tower arm (A).

After the horizontal support 200 is inserted into the insertion slot 120 of the vertical support 100, the butterfly nut 300 is inserted into the horizontal support 200 and then the butterfly nut 300 is tightened.

The grounding tool C increases the ground surface area of the steel tower side ground terminal by increasing the number of the terminal side connecting portions of the steel tower to two at the existing one place by the vertical clamp 110 and the horizontal clamp 210, It is possible to remove the possibility of departure at its source.

The vertical clamp 110 of the vertical support 100 and the horizontal clamp 210 of the horizontal support 200 are coupled to each other in the interlocking manner so that when one terminal is detached, There is an effect of becoming more solid.

The grounding tool C further includes a support portion 400 for stably supporting the horizontal support 200 from the vertical support 100.

The support part 400 stably supports the horizontal support part 200 from the vertical support part 100 and is released from the horizontal support part 200 by the release of the butterfly nut 300 due to an external force, ) From falling.

The supporting part 400 includes a fixing bar 410 fixed to the vertical support 100 so as to be positioned on the upper part of the supporting bar 220, a mounting ring 420 coupled to the outside of the supporting bar 220, A support bar 430 connected to the ring 420 and having an upper end passing through the fixing table 410 and having a thread formed on an outer circumferential surface of the supporting bar 430 and a fixing rod 410 rotatably fixed to the fixing table 410, And an adjustment lever 440 to which the support bar 430 is screwed to be movable up and down.

The fixing table 410 includes a housing 411 having one end fixed to the upper part of the vertical support 100 and the other end being opened, one end being movably received inside the housing 411, A moving bar 412 having a moving bar 440 and a binding means 413 for binding the moving bar 412 to the housing 411.

The housing 411 is formed with a guide hole 411a extending from the upper side of the other end to one end thereof and communicating with the inside thereof.

The moving bar 412 is protruded to the outside of the housing 411 through the guide hole 411a at an upper portion thereof and a guide protrusion 412a having a thread formed on the outer circumferential surface thereof.

The coupling means 413 is threaded on the inner circumferential surface thereof and is screwed to the guide protrusion 412a to bind the moving bar 412 to the housing 411.

The binding means 413 allows the movable bar 412 to be moved in the longitudinal direction in accordance with the unwinding rotation so that the position of the mounting ring 420 on the support bar 220 can be appropriately adjusted.

When the position of the mounting ring 420 is adjusted, the binding means 413 can be held in the position adjusted state by allowing the moving bar 412 to be coupled to the housing 411 according to the tightening rotation .

The binding means 413 can separate the moving bar 412 from the housing 411 as the binding means 413 is separated from the guide protrusion 412a.

The mounting ring 420 may be detached from the support bar 220 while being separated from the support bar 220 while being coupled to the control lever 440 by the support bar 430.

Therefore, the butterfly nut 300 can be separated from the horizontal support 200 if necessary.

The cradle ring 420 is preferably formed in a circular shape, and a buffer member 421 may be provided at a lower portion around the support rod 220.

Most preferably, the buffer member 421 does not protrude from the inner circumferential surface of the mounting ring 420.

The cushioning member 421 may be made of silicone or a rubber material and prevents abrasion due to contact with the support rod 220.

The support bar 430 has a lower portion fixed to the retaining ring 420 and an upper portion extending upwardly. The supporting bar 430 is screwed to the control lever 440 while forming a thread on the outer circumferential surface thereof.

The control lever 440 has a cylindrical shape with upper and lower openings, and is rotatably fixed to the movement bar 412 by a bearing or the like.

The adjusting lever 440 is formed with a thread on the inner circumferential surface thereof so that the mounting ring 420 can be raised and lowered together with the supporting bar 430 according to the rotation.

That is, the control lever 440 may be moved up and down with the support bar 430 in a state where the butterfly nut 300 is loosened, (410).

When the butterfly nut 300 is tightened, the control lever 440 is moved up and down together with the support bar 430 according to the rotation of the butterfly nut 300, Thereby being stably supported while being pressed by the support base 100.

Therefore, the support part 400 can stably support the horizontal support 200 from the vertical support 100, thereby relieving the butterfly nut 300 due to external force, So that the horizontal support 200 can be prevented from descending.

It is to be understood that the present invention is not limited to the above-described embodiment, and that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. 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 invention as defined by the appended claims.

100: vertical support 110: vertical clamp
120: insertion groove 122: garden ball
200: horizontal support 210: horizontal clamp
220: support rod 300: butterfly nut
400: support part 410:
411: casing 412: moving bar
413: binding means 420:
430: support bar 440: control lever

Claims (1)

A wire side terminal (1) installed in a transmission line; A steel tower side terminal (2) installed on the steel tower; And a wire (3) provided between the wire side terminal (1) and the steel tower side terminal (2)
The steel tower side terminal (2)
A vertical support 100;
A horizontal support 200 inserted into the vertical support 100; And
And a butterfly nut (300) for binding the horizontal support (200) to the vertical support (100)
The vertical support 100 includes an insertion groove 120 formed therein, a vertical clamp 110 formed by bending the upper end downward,
The horizontal support 200 includes a horizontal clamp 210 disposed at a lower portion of the vertical clamp 110 and one end bent in the direction of the vertical clamp 110 and one end connected to the horizontal clamp 210 And a support rod (220) having the other end passing through the insertion groove (120) and forming a thread on the outer peripheral surface,
The butterfly nut (300) is an earthing device for an ultra high voltage transmission line, which is coupled to the vertical support (100) while the horizontal support (200) is screwed to the support rod (220)
The horizontal support table 200 can be stably supported from the vertical support table 100 to prevent the horizontal support table 200 from descending due to the release of the butterfly nut 300 due to an external force or the loosening of the butterfly nut 300 due to incomplete engagement. (400), wherein the support portion (400)
The support portion 400 includes:
A fixing table 410 fixed to the vertical support 100 to be positioned on the upper side of the support rod 220;
A mounting ring 420 coupled to the outside of the support rod 220;
A support bar 430 having a lower end connected to the retainer ring 420 and an upper end passing through the retainer 410 and having threads formed on an outer circumferential surface thereof; And
And an adjusting lever 440 which is rotatably fixed to the fixing table 410 and has a screw thread formed on an inner circumferential surface of the supporting bar 430 so that the supporting bar 430 can be screwed up and down,
The fixing table (410)
A housing 411 having one end fixed to the upper portion of the vertical support 100 and the other end opened;
A moving bar 412 having one end movably received inside the housing 411 and the other end having the adjusting lever 440; And
And binding means (413) for binding the moving bar (412) to the housing (411)
The housing (411)
A guide hole 411a extending from the upper side of the other end to one end and communicating with the inside is formed,
The movement bar 412,
A guide protrusion 412a protruding outward from the housing 411 through the guide hole 411a is formed on the upper portion,
The binding means (413)
The movable bar 412 is coupled to the housing 411 while being screwed by the guide protrusion 412a and the movable bar 412 is moved in the longitudinal direction in accordance with the unlocking rotation so that the position of the stationary ring 420 So that the movable bar 412 is separated from the housing 411 as it is separated from the guide protrusion 412a,
The mounting ring (420)
A cushioning member 421 for preventing abrasion due to contact with the support rod 220 is provided at a lower portion of the support rod 220 around the support rod 220,
The control lever 440,
The mounting ring 420 is lifted and lowered together with the supporting bar 430 as the wing nut 300 is loosened to adjust the distance between the supporting bar 220 and the fixing table 410 Meanwhile, when the butterfly nut 300 is tightened, the mounting ring 420 is lifted and lowered together with the supporting bar 430 as the horizontal supporting table 200 is pressed by the vertical supporting table 100 So as to be stably supported by the ground.

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