KR101199520B1 - Device with tension relaxation of overhead electric cable for transmission tower - Google Patents

Abstract

PURPOSE: A tension relaxation device of an overhead transmission line for a power transmission tower is provided to stably maintain facilities by preventing the deformation of a connector connecting overhead transmission lines due to an external force. CONSTITUTION: A support(110) is horizontally installed on the upper end of a tower. An insulator main body(121) is installed on the support by a fixing bolt(B). A receiving part(124) includes an opening part(1241) in the shape of a bottleneck. A spring(122) is inserted into the receiving part of the insulator main body. A fixing device(160) supports an overhead transmission line. The fixing device includes a clamp(161) and a clamp cover(162).

Description

Machined transmission line tension relief device for power transmission pylon {DEVICE WITH TENSION RELAXATION OF OVERHEAD ELECTRIC CABLE FOR TRANSMISSION TOWER}

The present invention relates to a processing transmission line tension relief device for transmission pylon, and more particularly, the transmission transmission line for transmission tower for preventing deformation and breaking of the transmission transmission line and the part connected to the processing transmission line by external force, and buffer the impact to safely maintain the equipment. A tension relief device.

In general, the transmission transmission line for transmission pylon is to install the insulator in the complete iron of the tower installed at regular intervals, and connect the overhead transmission line via the insulator.

Overhead transmission lines may be shorted through a pylon made of a conductive material in the event of a ground fault when electricity flows to the ground. Therefore, in order to minimize this possibility, the steel tower is not directly in contact with the overhead transmission line, and the wire is fixed through a connector having excellent insulation. Such insulators are called insulators.

The insulator is firmly fixed between the steel tower and the overhead transmission line, and bears the weight of the overhead transmission line.

Korean Patent Application No. 10-2010-0120231 (2010.11.30.) Describes "integrated suspension line integrating jumper for power line connection", and it is possible to maintain the position of the jumper when the wind is strong, There is no device to relieve tension. Therefore, there is a need for an apparatus for relieving tension in such overhead transmission lines.

On the other hand, the overhead transmission line is easy to shake due to the strong wind, due to this there is a risk that fatigue accumulates in the portion connecting the overhead transmission line and the insulator, and as a result it can be broken.

In general, steel towers are often installed in the mountains, and overhead transmission lines installed in such steel towers are easily exposed to wind, which may further increase the aforementioned risk.

If the overhead transmission line is shaken due to the wind, even if the part connecting the overhead transmission line and the insulator remains unbroken, the overhead transmission line may be deformed by exceeding the allowable tensile force due to the wind and will not have the original intended rigidity. It also has the potential to be dangerous.

The aforementioned risks are also borne by silk, wind, and external forces applied artificially to overhead transmission lines, and therefore, an apparatus capable of alleviating tension on overhead transmission lines for transmission pylons is required.

In order to solve the above problems, it is an object of the present invention to provide an overhead transmission line tension relief device for a transmission tower to reduce the tension applied by the overhead transmission line to prevent damage to the equipment.

It is another object of the present invention to provide a overhead transmission line tension relief device for a transmission pylon that prevents breakage of a overhead transmission line and a connection with the overhead transmission line by external force.

In order to solve the above problems, the present invention, in the overhead transmission line tension relief device for power transmission pylon,

A support installed horizontally on the upper end of the pylon,

The insulator body, which is a cylindrical electrical insulator having one side formed of a plurality of corrugations, which is installed on a support of a steel tower via a fixing bolt,

An open receiving portion formed in the agile body and having an opening in a bottleneck shape,

A first link accommodating one end which is not separated to the outside by the opening of the accommodating body to the accommodating part and linearly moving into the accommodating part;

A spring which is accommodated in the accommodating part of the insulator body and exerts an elastic repulsive force in an outward direction to one end of the first link accommodated in the accommodating part of the insulator body,

An elastic bar having one end connected to the support and the shaft and capable of elastic bending or elastic spreading deformation;

One end is connected to the other end of the first link and the shaft, and the other end is connected to the other end of the elastic bar and the second link,

A linking piece connected to the shaft connecting the second link and the elastic bar, and a contact piece having a semicircular cross section disposed opposite the lower end of the linking piece, and having a overhead transmission line and a jumper line introduced between the linking piece and the contact piece. Process transmission line tension for power transmission tower including a clamp having a clamp to press and fasten through the fastening member so as to be electrically interconnected, and a clamp cover to protect the clamp and the overhead transmission line and the jumper line to prevent foreign substances from entering from the outside. Provide a mitigation device.

The overhead transmission line tension relief device for a transmission tower according to the present invention has the effect of preventing the deformation and breakage of the connection between the overhead transmission line and the overhead transmission line by the external force to maintain the facility.

1 is a side view of a overhead transmission line tension relief device for a transmission tower according to the present invention;
Figure 2 is a side cross-sectional view of the main portion of the overhead transmission line tension relief device for transmission tower according to the present invention. And
3 and 4 are views showing the operation of the overhead transmission line tension relief device for a transmission tower according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

1 is a side view of the overhead transmission line tension relief device for transmission tower according to the present invention, Figure 2 is a side cross-sectional view of the main portion of the overhead transmission line tension relaxation device for transmission tower according to the present invention.

1 and 2, the overhead transmission line tension relief device for a transmission tower according to the present invention, the support 110, insulator 120, the first link 130, the second link 140, elastic bar 150 ) And the fixing mechanism 160.

The support 110 is a metal bar, which is fixed to the outer surface of the upper end of the steel tower 1 through a band member (not shown), and supports the overhead transmission line L1 fixed via the insulator 120. Play a role.

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

The insulator body 121 is an electrical insulator, and has a cylindrical shape in which the bellows-shaped pleats are formed in the circumferential direction on the outer circumferential surface 123.

The base end of the insulator body 121 is provided with a fixing bolt (B) penetratingly coupled to the support 110, the first link 130 is provided at the front end.

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

The first link 130 is fitted to be intermittently inserted into the receiving portion 124 of the insulator body 121, and linearly reciprocates while being subjected to elastic repulsion from the spring 122.

The opening 1241 of the receiving portion 124 of the insulator body 121 has a bottleneck shape, and one end 131 of the first link 130 is movable in the receiving portion 124 of the insulator body 121, but is accommodated in the insulator body 121. It has a width that does not deviate from the opening 1241 of the portion 124 to the outside.

The spring 122 exerts an elastic repulsion force on one end 131 of the first link 130, and the first link 130 may linearly move into the insulator body 121 while receiving the elastic repulsion force from the spring 122.

The first link 130, the second link 140, and the shaft 134 may be formed of a general insulator.

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

Although the pivot P is installed at the central position of the second link 140 and the structure of the pivot P is not shown in the drawing, it may be configured in a general manner and is preferably configured to be insulated.

One end 141 of the second link 140 is connected to the first link 130 and the shaft 134, and the other end 142 of the second link 140 to the elastic bar 150 and the shaft 1456. It is connected and can be rotated around the pivot (P).

The position of the shaft 1456 is preferably configured to be formed on the elastic bar 150.

One end 151 of the elastic bar 150 is connected to the support 110 and the shaft 115, the end portion extending to the other end 152 of the elastic bar 150 is shown inside the fixing mechanism 160 While mechanically coupled to an insulator (not shown), it electrically forms an insulation state.

The fixing mechanism 160 is composed of an insulator and electrically connects the overhead power transmission line L1 and the jumper wire J, and includes a clamp 161 and a clamp cover 162.

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

The link connector 1611 is preferably composed of an insulator, and even when the insulator is not an insulator, the link connector 1611 maintains an insulated state from the support 110 by an insulator (not shown).

The clamp 161 and the close contact piece 1612 may be made of a conductor, if necessary, but preferably made of an insulator, and electrically connect the overhead power line L1 and the jumper wire J and are insulated from other parts. Keep it.

The link connector 1611 is in a state of being electrically insulated from the elastic bar 150 and mechanically connected through an insulator (not shown).

That is, the link connector 1611, the second link 140, and the elastic bar 150 are installed in a mechanically rotated state through one shaft 1456, and the second link 140 is centered on the pivot P. It is installed in a rotating state.

Here, since the configuration of fixing the pivot P is generally general, it will be omitted in the drawings and description in detail, and the pivot P is preferably installed in an insulated state.

The clamp 161 of the fixing mechanism 160 is electrically interconnected by pressing and fixing the overhead transmission line L1 and the jumper wire J inserted between the link connector 1611 and the contact piece 1612 through the fastening member. Keep it separate from other parts.

The outer surfaces of the overhead transmission line L1 and the jumper wire J are wrapped using the link connector 1611 and the close contact piece 1612 in a fixed state using a fastening member. This fastening member may be a known fastening means and is preferably composed of an insulator.

By using a U-shaped bolt as a fixing means to surround the bottom surface of the close contact piece 1612 and to fasten so that the link connector 1611 and the close contact piece 1612 are assembled and fixed to each other through a nut. It is preferable to electrically connect and fix the jumper wires J and to maintain an insulation state from other configurations.

Therefore, through such a configuration, the copper wires of the overhead transmission line (L1) and the jumper wire (J) can be safely and electrically interconnected more easily. Insulation state is perfectly formed.

The clamp cover 162 wraps and protects the clamp 161, the overhead transmission line L1, and the jumper wire J so that foreign matters do not flow from the outside.

Since the clamp 161, the overhead transmission line L1, and the jumper wire J are covered and protected by the clamp cover 162, it is possible to block the inflow of foreign substances, thus preventing electrical short circuit accidents due to contact with the foreign substances while maintaining insulation. Will be prevented.

3 and 4 is a view showing the operation of the overhead transmission line tension relief device for a transmission tower according to the present invention.

3 and 4 show that the fixing mechanism 160 is moved, which indicates a situation regarding the movement of the overhead transmission line L1 connected to the fixing mechanism 160, for example, shaking.

Referring to FIG. 3, when the fixing mechanism 160 moves in the direction of the support 110, the shaft 1456 connecting the fixing mechanism 160 and the elastic bar 150 pressurizes the elastic bar 150. Bar 150 is supported by the other end 151 connected to the support 110 is elastically bending deformation.

Here, since the first link 130 does not linearly move into the insulator body 121 and the second link 140 rotates about the pivot P, the first link 130 and the shaft 134 are not shown in the drawing. Moves in the right direction.

Referring to FIG. 4, when the fixing mechanism 160 moves away from the support 110 by an external force applied to the overhead power transmission line L1, one end 152 of the elastic bar 150 connected to the fixing mechanism 160 is moved. In addition, the support 110 moves in a direction away from the elastic bar 150 is supported by the other end 151 connected to the support 110 is elastically expanded deformation.

The second link 140 connected to the elastic bar 150 and the fixing mechanism 160 through the insulating shaft 1456 is inclined while being inclined in the right direction in the drawing about the pivot P, and the first link ( 130 and axis 134 move in the left direction in the figure.

Here, when the degree of movement of the fixing mechanism 160 in the direction away from the support 110 is significantly increased, the second link 140 is further inclined to the right direction, the first link 130 and the second link 140 The connecting shaft 134 presses the first link 130 to the left direction, and the first link 130 enters into the insulator body 121 while being elastically repelled by the spring 122.

As shown in FIGS. 3 and 4, when the fixing mechanism 160 to which the overhead transmission line L1 is connected moves, the first link 130, the second link 140, and the elastic bar 150 may influence each other. Move to relieve tension applied to overhead transmission line L1. This can buffer the tension applied from the power transmission line L1 at the connection portion between the support 110 and the insulator 120, the insulator 120 and the fixing mechanism 160, and can reduce the damage of the power transmission tower equipment and keep it safe. .

There are many different ways to modify these embodiments while remaining within the scope of the claims. In other words, there may be many other ways in which the invention may be practiced without departing from the scope of the following claims.

110: support 120: insulator
121: insulator body 122: spring
123: outer peripheral surface 124: receiving portion
130: first link 140: second link
150: elastic bar 160: fixing mechanism
161: clamp 1611: link connector
162: clamp cover 1612: close contact
115, 134, 1456: axis

Claims (1)

In the overhead transmission line tension relief device for power transmission pylon,
Support 110 is installed horizontally on the upper end of the pylon (1);
An insulator body 121 having one side installed on the support 110 of the steel tower 1 via a fixing bolt B and having a circumferential electrical insulator having a cylindrical shape;
An open accommodating part 124 formed in the insulator body 121 and having an opening 1241 in a bottleneck shape;
One end 131 which is not separated to the outside by the opening 1241 of the accommodating part 124 of the insulator body 121 may be accommodated in the accommodating part 124 and may be linearly moved into the accommodating part 124. First link 130;
The elastic repulsion force is applied to the one end 131 of the first link 130 accommodated in the receiving portion 124 of the insulator body 121 and accommodated in the receiving portion 124 of the insulator body 121. A spring 122;
An elastic bar 150 having one end 151 connected to the support 110 and the shaft 115 and capable of elastic bending or elastic spreading deformation;
One end 141 is connected to the other end 132 and the shaft 134 of the first link 130, and the other end 142 is the other end 152 and the shaft 1456 of the elastic bar 150. A second link (140) connected to the connection; And
Inner link connector 1611 protruding from the shaft 1456 is installed to include a fixing mechanism 160 for supporting the overhead transmission line,

The fixing mechanism 160,
A link connector 1611 connected to a shaft 1456 connecting the second link 140 and the elastic bar 150;
An adhesive piece 1612 having a semi-circular cross section disposed opposite the lower end of the link connector 1611;
A clamp 161 for pressurizing and fixing the overhead transmission line L1 and the jumper wire J drawn between the link connector 1611 and the contact piece 1612 to be electrically connected to each other through a fastening member; And
And a clamp cover (162) surrounding and protecting the clamp (161), the overhead transmission line (L1), and the jumper wire (J) so that foreign matter does not flow from the outside.

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