KR101732567B1 - Tension relaxation apparatus for power transmission tower of overhead wire for power transmission - Google Patents

Abstract

The present invention relates to a tension relaxation apparatus for a power transmission tower of a power transmission overhead wire, and more particularly, to a tension relaxation apparatus for a power transmission tower of a power transmission overhead wire which prevents change and breakage of an overhead wire and a part connected to the overhead wire by external force and safely maintain equipment by absorbing impact, and makes a fixing mechanism move toward a support or in a direction opposite to the support so that a first link can horizontally move, thereby preventing change or damage that may occur when the first link tilts to one side from the horizontal status.

Description

TECHNICAL FIELD [0001] The present invention relates to a tension relieving device for a transmission tower of a power transmission line,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tension relieving device for a transmission tower of a power transmission line of transmission power transmission technology and more particularly to a tension relieving device for a transmission tower which prevents deformation and breakage of a part connected to a working wire and a working wire by an external force, So that the first link can be moved horizontally while being moved in a direction opposite to the support base or the support, so that the first link is inclined from the horizontal position to the one side And more particularly, to a tension relieving device for a transmission tower of a power transmission dedicated line for preventing deformation or breakage which may be generated.

Generally, the transmission wire for the power transmission tower is installed at a fixed interval of the steel tower, and the working wire is connected through the insulator.

Because the special wire runs at a special high voltage, it can be short-circuited through a steel tower made of a conductive material when electricity is grounded.

Therefore, in order to minimize this possibility, do not directly contact the steel tower with the working wire, and fix the wire through a connecting member with excellent insulation.

This insulator is called an insulator, and the insulator is firmly fixed between the steel tower and the working wire and carries the weight of the working wire.

On the other hand, the machined wire is liable to be shaken due to strong winds, and as a result, there is a risk that fatigue accumulates in the portion connecting the machined wire and the insulator, resulting in breakage.

Generally, steel towers are installed in the mountains, and the working wires installed on these towers are likely to be exposed to the wind, so that the aforementioned risks can be further increased.

In the case where the working wire is shaken due to wind, even if the portion connecting the working wire and the insulator is maintained without being broken, the working wire can be deformed beyond the allowable tensile force due to wind and can not have the original intended stiffness, There is also a risk that

The aforementioned risks are caused by not only the wind, but also the external force artificially applied to the working wire, and accordingly, there is a need for a device capable of reducing the tension on the working wire for the transmission tower.

As a conventional technique in which such problems are partially improved, Korean Patent Registration No. 10-1199520 (November 11, 2012) discloses a transmission line tension reducing device for transmission tower.

However, in the conventional transmission line tension relieving apparatus for a transmission tower, the first link is tilted to one side from the state in which the first link is kept horizontal as the fixing mechanism is moved in the direction opposite to the support base or the support base, There is a problem that distortion, breakage or the like may occur.

Korea Patent Registration No. 10-1199520 (2012.11.09.) 'Power transmission line tension reducing device for transmission tower'

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to prevent deformation and breakage of a part connected to a working wire and a working wire by an external force, The first link can be moved in a horizontal direction as the fixing mechanism is moved in the direction opposite to the support base or the support, so that the first link can be deformed or damaged And to provide a tension relieving device for a power transmission tower of a transmission work line.

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 accomplish the above object, the present invention provides a support structure comprising: a support horizontally installed at an upper end of a steel tower; An insulator main body, which is a cylindrical electric insulator having one side fixed to a supporting base of the steel tower via a fixing bolt and a periphery made of a plurality of corrugations; An open receiving portion formed in the insulator body and having an opening in the shape of a bottleneck; A first link which houses one end of the accommodating portion of the insulator main body which is not separated by the opening of the accommodating portion and which can move linearly into the accommodating portion; A spring accommodated in the accommodating portion of the insulator body and applying an elastic repulsive force to the one end of the first link housed in the accommodating portion of the insulator body in the outward direction; An elastic bar, one end of which is connected to the support by a shaft, and which can be elastically deformed or elastically deformed; A second link having one end connected to the other end of the first link and the other end connected to the other end of the elastic bar with an axis; And a fixture mechanism having an inner link connection protruding from the shaft to support a work line, the fixture mechanism comprising: a link connection port connected to a shaft connecting the second link and the elastic bar; A contact piece having a semicircular cross section arranged to face the lower portion of the distal end of the link connection port; A clamp for electrically connecting the working wire and the jumper wire drawn between the link connection port and the close contact piece through a fastening member so as to be electrically connected to each other; And a clamp cover which surrounds and clamps the clamp, the working wire and the jumper wire so as to prevent foreign matter from entering from the outside, wherein the fixing mechanism is provided in a direction opposite to the support base or the support base And a guide portion for supporting and guiding the first link so that the first link can be moved horizontally as the guide portion is moved in a direction that the first link is moved in a direction in which the first link is moved. A guide rail connected thereto; A bracket for supporting the guide rail from the steel tower; A guide bar having an upper end connected to the first link and a lower end received in the guide rail; And a moving member provided at a lower portion of the guide bar and accommodated inside the guide rail and moved along the guide rail, wherein the guide rail receives the moving member inwardly with both ends thereof opened, And a guide hole is formed in the upper portion of the guide bar so that the lower portion of the guide bar is moved along the longitudinal direction while passing through the lower portion of the guide bar.

According to the present invention, it is possible to prevent the deformation and breakage of the connecting portion between the working wire and the working wire by an external force, thereby maintaining the facility.

Further, the first link can be moved in a horizontal direction as the fixing mechanism is moved in the direction opposite to the support base or the support, so that the first link can be stably moved in the longitudinal direction, It is possible to prevent deformation, breakage, and the like that may be generated while being tilted from one side to the other side.

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 side view showing a tension relieving device for a transmission tower of a transmission work line according to the present invention.
Fig. 2 is a cross-sectional side view showing a tension relieving device for a transmission tower of a transmission dedicated electric wire according to the present invention.
FIG. 3 and FIG. 4 are operational state diagrams showing a tension relieving device for a transmission tower of a transmission work line according to the present invention.
5 and 6 are a side view and a cross-sectional side view showing a state in which a guide portion is provided in a tension relieving device for a transmission tower of a transmission dedicated electric wire according to the present invention.
7 is an exploded perspective view showing a state of connection between a connecting member and a guide rail in a tension relieving device for a transmission tower of a transmission working cable according to the present invention.

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

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. And should not be construed as limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention can make various changes and have various forms, specific embodiments are illustrated in the drawings and described in detail herein.

It should be understood that the embodiments according to the concept of the present invention are not limited to the particular mode of disclosure but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

Since the present invention uses the previously-described prior art 1199520 as it is, all the features of the device configuration described below can be understood as the matters described in the registered patent No. 1199520. [

However, in the present invention, the transmission line tension relieving device for the transmission tower is replaced with the tension relieving device for the transmission tower of the transmission line, and the fixing mechanism is provided in the direction opposite to the support line or the support line Further comprising a structure for supporting and guiding the first link so that the first link can be moved horizontally as it is moved in the direction of the first link.

Therefore, the device structure, characteristics, and operation relationship described below will be incorporated by reference in the above-mentioned Japanese Patent Application No. 1199520, and the structure related to the main features of the present invention will be described in detail at the rear end.

1 to 4, the tension relieving apparatus for a transmission tower of a transmission transmission line according to the present invention includes a support 110, an insulator 120, a first link 130, a second link 140, A bar 150 and a securing mechanism 160.

The supporting table 110 is fixed to the outer surface of the upper end of the steel tower 1 through a band member (not shown) by a square bar made of a metal material and has a working wire L1 fixed via the insulator 120 .

The insulator 120 is composed of an insulator body 121 and an elastic spring 122.

The insulator main body 121 is an electric insulator, and the outer circumferential surface 123 has a cylindrical shape in which a bellows-shaped wrinkle is formed in a circumferential direction.

The insulator main body 121 is provided at its proximal end with a fixing bolt B penetratingly coupled to the support base 110 and the first link 130 is installed at a distal end thereof.

The insulator body 121 forms an accommodating portion 124 in the form of an open container, and the elastic spring 122 is accommodated in the accommodating portion 124.

The first link 130 is fitted to the receiving portion 124 so as to be interrupted, and is linearly reciprocatingly movable while receiving elastic repulsive force from the spring 122.

One end 131 of the first link 130 is movable in the receiving portion 124 but is separated from the opening 1241 to the outside Have a width.

The spring 122 applies an elastic repulsive force to one end 131 of the first link 130 and the first link 130 receives a resilient repulsive force from the spring 122, Can be moved.

The first and second links 130 and 140 may be formed of a general insulator.

The other end 132 of the first link 130 is connected to the second link 140 through an axis 134 and the second link 140 is rotated about the axis 134. The shaft 134 may be made of a general insulator.

A pivot P is provided at a center position of the second link 140. The structure of the pivot P is not shown in the drawing but may be formed in a general manner and may be insulated.

One end 141 of the second link 140 is connected to the first link 130 through the shaft 134 and the other end 142 of the second link 140 is connected to the elastic bar 150 And is pivotable about the pivot P by being connected to an axis 1456.

The position of the shaft 1456 is preferably formed in the elastic bar 150.

One end 151 of the elastic bar 150 is connected to the support rod 110 by a shaft 115 and an end portion extending from the other end 152 of the elastic bar 150 is connected to the inside (Not shown) shown in Fig. 4A to form an electrically insulating state.

The fixing mechanism 160 is composed of an insulator and electrically connects the working wire L1 and the jumper wire J and includes a clamp 161 and a clamp cover 162. [

The clamp 161 includes a contact piece 1612 having a semicircular cross section disposed opposite to the lower end of the link end 1611 and the link end 1611.

The link connection port 1611 is preferably formed of an insulator, and even when the insulator is not an insulator, the insulated insulator (not shown) completely maintains the insulated state from the supporter 110.

The clamp 161 and the contact piece 1612 may be formed of a conductive material if necessary but they are preferably formed of an insulator and electrically connect the working wire L1 and the jumper wire J to each other, Thereby maintaining the insulation state.

The link connector 1611 is electrically insulated from and mechanically connected to the elastic bar 150 through an insulator (not shown).

That is, the link connection port 1611, the second link 140, and the elastic bar 150 are installed in a mechanically rotating state through one shaft 1456, and the second link 140 is pivotally mounted P as shown in Fig.

Since the structure for fixing the pivot P here is general, it is preferable to arrange the pivot P in an insulated state by omitting the illustration and description in detail.

The clamp 161 of the fixing mechanism 160 presses and fixes the working wire L1 and the jumper wire J drawn between the link connection port 1611 and the close contact piece 1612 via the fastening member, While maintaining insulation with other parts.

The outer surface of the working wire L1 and the jumper wire J is pressed and fixed by using a fastening member in a state of wrapping the outer surface of the working wire L1 and the jumper wire J using the link connection port 1611 and the close contact piece 1612. [

Such a fastening member may be a known fastening means and is preferably composed of an insulator.

The U-shaped bolt is used as a fixing means to surround the bottom surface of the close contact piece 1612, and the link connection port 1611 and the close contact piece 1612 are fastened to each other through a nut so as to be fixed to each other, It is preferable to electrically connect and fix the lead wire L1 and the jumper wire J and maintain an insulated state from other configurations.

Accordingly, the copper wire of the working wire L1 and the jumper wire J can be safely protected while being electrically interconnected with each other, and the link connection port 1611 and the elastic bar 150 can be electrically insulated from each other (Not shown) to completely form an insulating state.

The clamp cover 162 covers and protects the clamp 161, the working wire L1 and the jumper wire J so as to prevent foreign substances from entering from the outside.

Since the clamp 161 and the working wire L1 and the jumper wire J are protected by being enclosed by the clamp cover 162 to prevent the foreign matter from flowing into the clamp cover 162, Can be prevented.

3 and 4 show a state in which the fixing mechanism 160 is moved, which indicates a state of movement of the working wire L1 connected to the fixing mechanism 160, for example, shaking.

3, when the fixing mechanism 160 moves in the direction of the support 110, a shaft 1456 connecting the fixing mechanism 160 and the elastic bar 150 is connected to the elastic bar 150 And the elastic bar 150 is supported at the other end 151 connected to the support base 110 and elastically deformed.

Since the first link 130 does not linearly move into the insulator main body 121 but the second link 140 rotates about the pivot P, (134) moves in the right direction in the drawing.

4, when the fixing mechanism 160 moves in a direction away from the supporting table 110 by an external force applied to the working wire L1, the elastic bar 150 connected to the fixing mechanism 160 And the elastic bar 150 is supported by the other end 151 connected to the support 110 and elastically deformed by the elastic deformation.

The second link 140 connected to the elastic bar 150 and the fixing mechanism 160 via the insulating shaft 1456 is tilted with respect to the pivot P in a rightward direction in the drawing, The first link 130 and the shaft 134 move in the left direction in the drawing.

When the degree of movement of the fixing mechanism 160 in the direction away from the support table 110 is significantly increased, the second link 140 is further inclined in the right direction, The shaft 134 connecting the second link 140 presses the first link 130 in the left direction and the first link 130 is urged in the insulator body 121).

The first link 130, the second link 140, and the elastic bar 150 are connected to each other, as shown in FIGS. 3 to 4, when the fixing mechanism 160 to which the working wire L1 is connected moves, Thereby mutually reducing the tension applied to the working wire L1.

It is possible to buffer the tension applied from the working wire L1 at the connection portion between the support 110 and the insulator 120, between the insulator 120 and the fixing mechanism 160, to reduce the breakage of the transmission tower equipment, .

5 to 7, as the fixing mechanism 160 is moved in the direction of the support base 110 or in a direction opposite to the support base 110, The structure of the guide portion 170 for supporting and guiding the link 130 to be movable in a horizontal direction is further realized.

That is, the guide part 170 is moved in the direction of the support base 110 or in a direction opposite to the support base 110 so that the elastic bar 150 can be contracted or relaxed The first link 130 is prevented from being deformed or damaged by being tilted to one side from a state in which the first link 130 is kept horizontal.

The movement of the fixing mechanism 160 can be understood as a movement due to the movement of the working wire L1.

The guide unit 170 includes a guide rail 171 having both ends and one end connected to the pylon 1 so as to be positioned below the pylon main body 121 and a pair of guide rails 171 And a guide bar 173 connected to the first link 130 and having a lower end movably coupled to the guide rail 171 in the longitudinal direction.

The lower end of the guide bar 173 is inserted into the guide rail 171 while the lower end of the guide bar 173 is inserted into the guide rail 171. The lower end of the guide bar 173 is inserted into the guide hole 171a, .

The bracket 172 includes a plate 172a for supporting one end of the guide rail 171 and a pair of support bars 172b for supporting the plate 172a.

The pair of support bars 172b may be integrally formed with the plate 172a while being bent downward from both sides of the plate 172a.

The bracket 172 is fixed to the steel tower 1 by welding or the like, and stably supports one end of the guide rail 171.

The guide rail 171 may be fixed to the steel tower 1 or the bracket 172 by welding or the like.

Alternatively, the guide rail 171 may be detachably coupled to the bracket 172.

The guide unit 170 may further include a coupling member 174 provided at an upper portion of the bracket 172 and fitted to one end of the opened guide rail 171.

The coupling member 174 includes a connecting bar 174a extending upward from the upper portion of the plate 172a and a guide bar 174b extending from the connecting bar 174a in the direction of the guide rail 171, And an engaging projection 174b fitted to one end of the engaging portion 171.

The coupling protrusions 174b may have the same circumference as the inner circumference of the guide rails 171.

The coupling protrusion 174b may be coupled to the guide rail 171 by a coupling hole (not shown) including a screw, a bolt, and the like.

The upper end of the guide bar 173 may be detachably coupled to the first link 130.

For example, the first link 130 is formed with a fastening protrusion 130a, which extends downward at the lower portion and has threads formed on the outer circumferential surface thereof.

The guide bar 173 is formed to extend downward from an upper end of the guide bar 173 and has a screw groove formed in an inner circumferential surface thereof to form a coupling groove 173a into which the coupling protrusion 130a is screwed.

Accordingly, the guide bar 173 can be easily separated and replaced from the first link 130 due to deformation or breakage due to pressure from the outside such as a typhoon while being screwed to the first link 130 .

The guide unit 170 may further include a moving member 175 provided at a lower portion of the guide bar 173 and accommodated in the guide rail 171 and moved along the guide rail 171 have.

The moving member 175 is connected to the lower end of the guide bar 173 and has both ends extending in a direction intersecting with both ends of the guide rail 171, And a pair of wheels 177 connected to both ends of the bar 176 and the moving bar 176.

That is, the guide bar 173 is moved in a direction opposite to the support base 110 together with the first link 130 as the fixing mechanism 160 is moved toward the support base 110, The first link 130 is prevented from being tilted from the horizontal state to the one side by the pressing by the contraction of the first link 130.

The guide bar 173 is moved in the direction of the supporter 110 together with the first link 130 as the securing mechanism 160 is moved in a direction opposite to the supporter 110, The first link 130 is prevented from being tilted from the horizontal state to the one side by the pressing by the expansion of the first link 150.

Accordingly, the guide bar 173 can prevent the first link 130 from being deformed and damaged, and at the same time, the first link 130 can be smoothly moved.

110: support 120: insulator
121: insulator body 122: spring
123: outer circumferential surface 124:
130: first link 140: second link
150: Elastic bar 160: Fixing device
161: Clamp 1611: Link end
162: clamp cover 1612: close contact piece
170: guide portion 171: guide rail
171a: Guide ball 172: Bracket
172a: plate 172b: support bar
173: guide bar 174: engaging member
174a: connecting bar 174b: engaging projection
175: moving member 176: moving bar
177: Wheels

Claims (1)

A supporting table 110 horizontally installed on the upper end of the steel tower 1;
An insulator main body 121, which is a cylindrical electric insulator provided on the support base 110 of the steel tower 1 on one side via a fixing bolt B and has a plurality of corrugations around the periphery;
An open receiving portion 124 formed in the insulator body 121 and having an opening 1241 in the shape of a bottleneck;
The one end 131 of the insulator main body 121 which is not separated to the outside by the opening 1241 of the accommodating portion 124 is received in the accommodating portion 124 and can be linearly moved into the accommodating portion 124 A first link 130;
The first link 130 is accommodated in the accommodating portion 124 of the insulator main body 121 and applies an elastic repulsive force in the outward direction to one end 131 of the first link 130 accommodated in the accommodating portion 124 of the insulator main body 121 A spring 122;
An elastic bar 150 to which one end 151 is connected by the support rod 110 and the shaft 115 and which can be elastically deformed or elastically deformed;
One end 141 is connected to the other end 132 of the first link 130 through a shaft 134 and the other end 142 is connected to the other end 152 of the elastic bar 150 by an axis 1456 A second link 140; And
And a fixing mechanism (160) provided with an internal link connection port (1611) protruding from the shaft (1456) to support a working wire,
The fixing mechanism (160)
A link connection port (1611) connected to an axis (1456) connecting the second link (140) and the elastic bar (150);
A contact piece 1612 having a semicircular cross section disposed opposite to the lower end of the distal end of the link connection port 1611;
A clamp 161 for pressing and fixing the working wire L1 and the jumper wire J drawn between the link connection port 1611 and the contact piece 1612 through a fastening member so as to be electrically connected to each other; And
And a clamp cover (162) for wrapping and protecting the clamp (161) and the working wire (L1) and the jumper wire (J) so as to prevent foreign matter from entering from the outside. The tension reducing device for a transmission tower,
A guide portion for supporting and guiding the first link 130 so that the first link 130 can be moved horizontally as the fixing mechanism 160 is moved in the direction of the support base 110 or in a direction opposite to the support base 110 170)
The guide portion 170 may be formed,
A guide rail (171) having both ends and one end connected to the pylon (1) so as to be positioned below the insulator body (121);
A bracket 172 fixed to the steel tower 1 and supporting the guide rail 171 from the steel tower 1;
A guide bar (173) having an upper end connected to the first link (130) and a lower end received in the guide rail (171);
A moving member 175 provided below the guide bar 173 and received in the inside of the guide rail 171 and moved along the guide rail 171; And
And an engaging member (174) provided on the bracket (172) and one end of the opened guide rail (171) being detachably engaged,
The bracket (172)
A plate 172a to which one end of the guide rail 171 is supported; And
And a pair of support bars (172b) for supporting the plate (172a)
The engaging member 174,
A connecting bar 174a extending upward from the upper portion of the plate 172a; And
And an engaging protrusion 174b extending from the connecting bar 174a in the direction of the guide rail 171 and coupled to one end of the opened guide rail 171,
The guide rails (171)
A guide hole 171a is formed in the upper portion of the guide bar 173 so that the lower portion of the guide bar 173 is moved in the longitudinal direction while the lower portion of the guide bar 173 is passed,
The first link (130)
A fastening protrusion 130a extending downward in the lower direction and forming a thread on the outer circumferential surface,
The guide bar (173)
A coupling groove 173a extending from the upper end in a downward direction and having a thread on the inner circumferential surface thereof is formed and engaged with the coupling protrusion 130a in a detachable manner,
The shifting member (175)
A movement bar 176 connected to a lower end of the guide bar 173 and extending in a direction intersecting both ends of the guide rail 171 at both ends thereof and received inside the guide rail 171; And
And a pair of wheels (177) connected to opposite ends of the moving bar (176).

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