WO2019054578A1

WO2019054578A1 - Device for preventing powerline from falling

Info

Publication number: WO2019054578A1
Application number: PCT/KR2017/015551
Authority: WO
Inventors: 유정훈; 권오득; 김대한
Original assignee: 한국전력공사
Priority date: 2017-09-18
Filing date: 2017-12-27
Publication date: 2019-03-21
Also published as: KR102001563B1; KR20190031669A

Abstract

The present invention provides a device for preventing a powerline from falling, the device including: powerline fixing devices elastically mounted, respectively, to a plurality of powerlines that are spaced apart from each other; and a fall prevention line for connecting adjacent powerline fixing devices, wherein the powerline fixing devices include: a grip part, which is elastically mounted on the outer circumferential surface of the powerline inserted through a powerline insertion groove; and a grip cover part, which is elastically mounted on the outer circumferential surface of the grip part inserted through a grip insertion groove.

Description

Cable drop prevention device

The present invention relates to an apparatus for preventing a wire from falling down, which prevents a safety accident and breakage of a facility.

It should be noted that the contents described in this section merely provide background information on the present invention and do not constitute the prior art.

The electric wire between the pole and the pole of the existing distribution line has been kept at a certain distance from the wire without any additional equipment, and the gap between the applied wires is maintained by the distribution line.

In this method, when the insulation breakdown of the insulator supporting the wire, the detachment of the wire, and the collision of the vehicle occurs, the entire wire falls to the ground and the electric potential of the ground is raised due to the electric shock of the pedestrian, There is a problem that it can be put in a dangerous condition that can cause overvoltage and burnout of a communication device.

Particularly, since the electric wire is continuously supplied when the electric wire is broken down, it is possible to increase the risk of a safety accident. Therefore, it is necessary to find measures to solve such a problem.

SUMMARY OF THE INVENTION The present invention provides, as one aspect, a device for preventing a wire from dropping, which can prevent a safety accident and a breakage of a facility caused when a wire is broken down due to disconnection.

According to an aspect of the present invention, there is provided a wire fixing apparatus comprising: a wire fixing member elastically mounted on a plurality of wires arranged to be spaced apart; And a fall preventing wire connecting the adjacent wire fixing members, wherein the wire fixing member includes: a grip portion elastically mounted on an outer circumferential surface of a wire inserted through the wire insertion groove; And a grip cover portion elastically mounted on an outer circumferential surface of the grip portion inserted through the grip insertion groove.

Preferably, with the grip cover portion being resiliently mounted on the grip portion, the inner surface of the grip cover portion may be arranged to surround the wire insertion groove.

Preferably, the grip portion includes: a grip body having the wire insertion groove formed in the longitudinal direction and elastically mounted on an outer circumferential surface of the wire; And a pressing piece radially disposed at the end portion of the grip body with a cross groove interposed therebetween.

Preferably, the grip cover portion includes: a cover main body formed with the grip insertion groove in the longitudinal direction and elastically mounted on the outer peripheral surface of the grip portion; And a pressing support surface formed at an end of the cover body and pressing the outer peripheral surface of the pressing piece so that the pressing piece seizes the electric wire.

Preferably, the grip cover portion may further include a reinforcing member protruding from the cover body in a circumferential direction, and disposed around the grip insertion groove to reinforce the vicinity of the grip insertion groove.

Preferably, the grip cover portion may further include an annular member which is formed on the cover main body and is provided so as to face the periphery of the grip inserting groove to provide a mounting portion of the fall preventing wire.

Preferably, the drop prevention wire may be provided with an insulating wire rod which is provided so as to connect a pair of the ring members opposed to each other.

Preferably, the drop prevention line includes: a connection clamp installed to connect a pair of the ring members opposed to each other; And an insulating wire connecting the adjacent connection clamps.

According to an aspect of the present invention, there is provided a wire drop prevention method using the wire fall preventing device, comprising: a first step of elastically mounting the grip portion on an outer circumferential surface of a plurality of wires; A second step of elastically mounting the grip cover portion on an outer circumferential surface of the grip portion; And a third step of connecting the wire fastener with the fall prevention wire by connecting the wire fastener with the fall preventing wire, and integrating the wire fastener with the fall preventing wire.

According to an embodiment of the present invention as described above, it is possible to prevent a safety accident and a breakage of a facility that may occur when a wire is disconnected and dropped.

Fig. 1 is a view showing a state in which the wire fall prevention device of the present invention is installed on a plurality of electric wires provided between a pole and a pole.

Fig. 2 is a view showing a state where one side of Fig. 1 is disconnected from a wire.

3 is a view showing a grip part of a wire fastener applied to the present invention.

4 is a view showing a state in which a grip portion of a wire fastener and a grip cover portion of the wire fastener according to the present invention are combined.

5 is a view showing a process of installing the grip part and the grip cover part of the wire fastener applied to the present invention.

Fig. 6 is a view showing a state in which a drop prevention wire is provided on a wire fastener applied to the present invention. Fig.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, the embodiments of the present invention can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. Further, the embodiments of the present invention are provided to more fully explain the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, an apparatus for preventing wire fall 10 according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 to 6, an apparatus 10 for preventing wire fall according to an exemplary embodiment of the present invention may include a grip portion 200, a grip cover portion 300, and a drop prevention wire 400.

1, the electric wire fall prevention device 10 includes an electric wire fixture 100 resiliently mounted on a plurality of electric wires L spaced apart from each other, and a fall prevention wire 100 connecting the adjacent electric wire fixtures 100 Wherein the wire fastener 100 includes a grip portion 200 elastically mounted on an outer circumferential surface of a wire L inserted through the wire insertion groove 211 and a grip portion 200 inserted through the grip insertion groove 311, And a grip cover part 300 that is elastically mounted on the outer circumferential surface of the grip part 200.

Referring to FIG. 1, the electric wire falling prevention apparatus 10 of the present invention is installed in a plurality of electric wires L which are installed between a pole P and a pole P and are spaced apart by a predetermined interval .

The electric wire fall preventing apparatus 10 of the present invention is characterized in that the wire fastener 100 including the grip portion 200 and the grip cover portion 300 is provided on each of the plurality of electric wires L and the adjacent wire fastener 100 is dropped And the plurality of electric wires L can be integrally supported by connecting the plurality of electric wires with the prevention wire 400. [

For example, the grip portion 200 and the grip cover portion 300 are respectively provided on the first wire L, the second wire L and the third wire L, And the grip cover portion 300 may be connected to the grip portion.

Referring to FIG. 2, the electric wire falling prevention apparatus 10 of the present invention connects adjacent wire fixtures 100 and connects one wire (L) mounted on one wire fixture 100 to a drop prevention wire The electric wire L can be prevented from dropping by supporting the wire L disconnected via the wire fixing means 400 and the wire fixing means 100 on the other side.

Therefore, it is possible to prevent a safety accident such as an electric shock accident of a pedestrian, which may occur when a broken wire L is broken, and a breakdown of a facility such as an automobile, in the conventional case.

3 and 4, the wire fastener 100 may include a grip portion 200 and a grip cover portion 300.

The grip portion 200 can be elastically mounted on the outer circumferential surface of the electric wire L inserted through the wire insertion groove 211.

The wire insertion groove 211 may be formed in the entire lengthwise direction of the grip portion 200 and the wire L may be mounted inside the grip portion 200 through the wire insertion groove 211.

When the grip portion 200 is attached to the wire L, the wire L is inserted while the wire insertion groove 211 is opened, the wire L is inserted into the grip portion 200, and then the wire insertion groove 211 The grip portion 200 can be resiliently mounted on the outer circumferential surface of the electric wire L. Further,

The grip cover portion 300 may be resiliently mounted on the outer circumferential surface of the grip portion 200 inserted through the grip insertion groove 311 and may be installed to surround the wire insertion groove 211.

The grip insertion groove 311 can be mounted inside the grip cover portion 300 through the grip insertion groove 311 with the opening portion formed in the entire lengthwise direction of the grip cover portion 300. [

The grip portion 200 is inserted while the grip insertion portion 311 is opened when the grip cover portion 300 is attached to the grip portion 200. After the grip portion 200 is mounted inside the grip cover portion 300, The grip cover portion 300 can be resiliently mounted on the outer peripheral surface of the grip portion 200 while the insertion groove 311 is narrowed.

For example, the drop prevention line 400 may connect the adjacent grip cover portions 300 provided on the plurality of electric wires L, respectively.

The wire fall preventing apparatus 10 of the present invention is configured such that the inner surface of the grip cover portion 300 is arranged so as to surround the wire insertion groove 211 in a state where the grip cover portion 300 is elastically mounted on the grip portion 200 .

The grip portion 200 is inserted into the grip cover portion 300 through the grip insertion groove 311 of the grip cover portion 300 and the inner surface of the grip cover portion 300 is inserted into the wire insertion groove 211 And can be installed to surround.

3 and 5, the grip portion 200 includes a grip body 210 having the wire insertion groove 211 formed in the longitudinal direction and elastically mounted on the outer peripheral surface of the electric wire L, And a pushing piece 250 radially disposed at the end of the body 210 with a through groove 230 therebetween.

5 (a), the grip main body 210 is formed of a hollow cylindrical member, and is extended to one side of the grip main body 210, An insertion groove 211 may be formed.

The pressing piece 250 may be radially disposed at the end portion of the grip body 210 with the insertion groove 230 interposed therebetween.

5B, a plurality of pressing pieces 250 may be radially arranged at the end of the grip body 210, and the pressing piece 250 may be disposed on the pressing support surface of the grip cover part 300 (330) of FIG. 4), the electric wire (L) can be taken over.

The pressing piece 250 is formed such that its cross section decreases toward the end of the grip body 210 and the size of the pressing groove 230 is reduced by the pressing piece 250 by the grip cover part 300 The pressing piece 250 can press the electric wire L to secure it.

Each pressing piece 250 may be a tapered member whose cross section decreases toward the end.

Referring to FIG. 3 and FIG. 5 (a), the open groove 230 may be formed in a shape such that the cross-sectional area of the open portion gradually increases toward the end portion.

For example, the top groove 230 may be formed in the shape of an arc-shaped triangle having a larger sectional area of the open portion toward the end, and the pressing piece 250 may have a trapezoidal shape with a smaller cross- .

For example, the pressing cover 250 can be reduced in size by the grip cover portion 300, and further, the gap between the opposed portions of the grip body 210, which forms the boundary of the top groove 230, The surface to be contacted can be contacted.

4 and 5B, the grip cover portion 300 includes a cover main body 311 formed in the longitudinal direction and elastically mounted on the outer peripheral surface of the grip portion 200 And a pressing support surface 330 formed at an end of the cover main body 310 and pressing the outer circumferential surface of the pressing piece 250 so that the pressing piece 250 grips the electric wire L .

The grip cover portion 300 may have a tapered pressing support surface 330 whose sectional area decreases toward the end portion on the inner surface of the end region of the cover main body 310.

Referring to FIG. 5 (b), the cover body 310 may have a cylindrical shape at the center and a tapered member whose cross section decreases toward the end.

A pressing support surface 330 for pressing the outer circumferential surface of the pressing piece 250 may be formed on the inner surface of the end region of the tapered member.

At this time, the pressing support surface 330 may be formed as a tapered tapered surface having a smaller cross-sectional area toward the end of the tapered member.

Although not shown, the cover body 310 is formed of a cylindrical member, and a pressing support surface 330 for pressing the outer peripheral surface of the pressing piece 250 may be formed on the inner surface of the end region of the cylindrical member.

The pressing support surface 330 may be formed of a tapered tapered surface having a smaller cross-sectional area toward the end of the cylindrical member.

Referring to FIGS. 4 and 5B, the grip cover portion 300 is formed to protrude in the circumferential direction in the cover body 310 and is disposed in the periphery of the grip insertion groove 311, And may further include a reinforcing member 370 for reinforcing the periphery of the insertion groove 311.

The reinforcing member 370 is a member that reinforces the grip insertion groove 311 so as not to be excessively opened.

The reinforcing member 370 is spaced apart in the longitudinal direction of the cover body 310 so that the grip cover portion 300 is opened when the grip cover portion 300 is attached to the grip portion 200, The grip insertion groove 311 can be supported so as not to be excessively opened.

4, the reinforcing member 370 is an arc-shaped member spaced apart in the longitudinal direction of the cover body 310 and protruding in the peripheral direction from the outer peripheral surface of the cover body 310 around the grip insertion groove 311 .

Referring to FIGS. 4 and 5B, the grip cover portion 300 is formed on the cover body 310 and is provided so as to be opposed to the periphery of the grip insertion groove 311, And an annular member 350 that provides an installation portion of the support member 400.

At least one pair of loop members 350 is provided and the drop prevention line 400 is integrally provided in the pair of loop members 350 to prevent the grip insertion groove 311 of the grip cover portion 300 from being opened .

Referring to FIG. 1 and FIG. 2, the drop prevention wire 400 can support a plurality of electric wires L integrally by connecting adjacent wire fixtures 100.

Referring to FIG. 2, the drop prevention wire 400 is provided to connect the adjacent grip cover part 300 and is connected to the grip cover part 300 connected to the one side by the drop prevention wire 400, The wire L connected to the grip cover portion 300 of the other side can support the wire L that is disconnected.

Referring to FIG. 5B, the drop prevention wire 400 may be provided as an insulative wire rod that is installed to connect a pair of the ring members 350 opposed to each other.

Although not shown, the drop prevention wire 400 may include a connection clamp that is provided to connect the pair of opposite ring members 350, and an insulating wire that connects between adjacent connection clamps.

The connection clamp may be provided with a locking hook member to be inserted into a hole of the pair of loop members 350, and the hook member may be provided with an insulating wire member bundled.

Next, with reference to Figs. 1 to 6, the wire falling prevention method will be described in detail.

The wire drop prevention method according to an embodiment of the present invention may include a first step, a second step, and a third step.

The present invention is a wire drop prevention method utilizing a wire fall prevention device (10).

The wire drop prevention method of the present invention includes a first step of elastically mounting the grip portion 200 on the outer circumferential surface of a plurality of electric wires L and a second step of elastically mounting the grip cover portion 300 on the outer circumferential surface of the grip portion 200 A second step, and a third step of connecting the wire fastener 100 with the fall preventing wire 400 and integrating them.

5 (a), in the first step, the grip portion 200 can be elastically mounted on the outer circumferential surface of the electric wire L. Referring to FIG.

The first step is a state in which the inserting grooves 230 are spaced apart from the pressing parts 250 of the grip part 200 before the grip cover part 300 is installed outside the grip part 200.

Referring to FIG. 5 (b), in the second step, the grip cover part 300 can be elastically mounted on the outer peripheral surface of the grip part 200.

The second step is a state after the grip cover part 300 is resiliently mounted on the outside of the grip part 200 and the gap between the pushing pieces 250 of the grip part 200 becomes small, The piece 250 can press the electric wire L to take control.

Referring to FIG. 1 and FIG. 6, in the third step, the electric wire fixing device 100 may be connected to the drop prevention wire 400 to be integrated.

The drop prevention wire 400 is provided so as to connect the adjacent grip cover parts 300 so that the electric wire L connected to the grip cover part 300 connected to the one side by the fall prevention wire 400 The wire L connected to the grip cover portion 300 of the other side can support the wire L which is broken.

It goes without saying that various embodiments of the wire fall prevention device 10 having various embodiments described above can be applied to the wire fall prevention method of the present invention.

Therefore, the configuration of the grip portion 200, the grip cover portion 300, and the fall prevention wire 400 of the wire fall prevention device 10 utilized in the wire fall prevention method is the same as the configuration of the wire fall prevention method A detailed description of the bar is omitted in order to avoid redundancy.

Although the embodiments of the present invention have been described in detail, it is to be understood that the scope of the present invention is not limited to the above embodiments and various changes and modifications may be made without departing from the scope of the present invention. It will be obvious to those of ordinary skill in the art.

Explanation of symbols

10: wire drop prevention device 100: wire fixing device

200: grip part 210: grip body

211: wire insertion groove 230:

250: pressure piece 300: grip cover part

310: cover body 311: grip insertion groove

330: pressing support surface 350: loop member

370: reinforcement member 400: drop prevention wire

L: wire P: wire

Claims

An electric wire fixture elastically mounted on a plurality of electric wires arranged to be spaced apart from each other; And

And a drop prevention line connecting the adjacent wire fasteners,

The wire fastener includes:

A grip portion elastically mounted on an outer circumferential surface of a wire inserted through the wire insertion groove; And

And a grip cover portion elastically mounted on an outer circumferential surface of the grip portion inserted through the grip insertion groove.
The method according to claim 1,

Wherein an inner surface of the grip cover portion is disposed so as to surround the wire insertion groove in a state where the grip cover portion is resiliently mounted on the grip portion.
[2] The apparatus of claim 1,

A grip main body in which the wire insertion groove is formed in the longitudinal direction and is elastically mounted on an outer peripheral surface of the electric wire; And

And a pressing piece radially disposed at an end portion of the grip body with an opening groove interposed therebetween.
The gripper according to claim 3,

A cover main body formed in a longitudinal direction of the grip insertion groove and elastically mounted on an outer peripheral surface of the grip portion; And

And a pressing support surface formed at an end of the cover body and pressing the outer peripheral surface of the pressing piece so that the pressing piece grips the electric wire.
The gripper according to claim 4,

And a reinforcing member protruding from the cover body in the circumferential direction and disposed around the grip insertion groove to reinforce the vicinity of the grip insertion groove.
The gripper according to claim 4,

And an annular member which is formed on the cover body and is provided so as to face the periphery of the grip insertion groove to provide an installation portion of the fall prevention wire.
7. The apparatus according to claim 6,

And an insulative wire rod installed to connect the pair of opposite ring members to each other.
7. The apparatus according to claim 6,

A connection clamp installed to connect a pair of the ring members opposed to each other; And

And an insulating wire for connecting between adjacent connection clamps.
A wire drop prevention method using the wire fall prevention device according to any one of claims 1 to 8,

A first step of elastically mounting the grip portion on an outer peripheral surface of a plurality of electric wires;

A second step of elastically mounting the grip cover portion on an outer circumferential surface of the grip portion; And

And a third step of connecting the wire fastener with the fall prevention wire by connecting the wire fastener with the fall preventing wire.