KR20230043815A - Sheet clip for live wire working - Google Patents

Abstract

According to the present invention, a sheet clip for a live wire work comprises: one pair of gripping parts which are rotatable to correspond around a rotating shaft and have a plurality of hooking grooves penetrating laterally so that ring-shaped connecting ring parts installed on an insulating sheet are hooked; and one pair of control units installed at rear ends of the gripping parts around the rotating shaft and configured to bring the gripping parts into close contact or spaced apart by rotation. The plurality of locking grooves face each other along front and rear directions of the one pair of gripping parts and are arranged to be spaced apart.

Description

Sheet clip for live wire work {SHEET CLIP FOR LIVE WIRE WORKING}

The present invention relates to a protection device for hot wire work capable of protecting power facilities without contacting the power facility, and more particularly, to a sheet clip for hot wire work for fixing an insulating sheet to a wire.

When working on a live wire in a distribution line, if there is a possibility that a worker may come close to a 22.9kV power facility, the power facility must be protected by using a protective gear. At this time, the generally used protective gear is a rubber insulation blanket. This work can only be performed with a direct live wire in which the worker directly contacts the power facility, but the social atmosphere that emphasizes safety these days requires that it be performed with a non-contact indirect live wire work using an insulation stick for the safety of the worker.

In order to protect power equipment by indirect live wire work, use an insulation stick for indirect live wire, cover the power equipment with a rubber insulation blanket, and then fix it with insulating tongs. Conventional rubber insulation blankets were heavy and hard, so it was very difficult to handle with indirect live wire sticks, and even if the power facilities were covered with rubber insulation blankets, it was very difficult to fix the rubber insulation blanket by opening the insulation tongs with the insulation sticks for indirect live wires. Ryu protection cannot be indirect live wire with any type of protection.

In addition, the rubber insulation blanket is heavy and hard, so it is difficult for two workers to lift it at the same time, and since general power facilities are curved, it is very difficult to fix the power facilities and the rubber insulation blanket together with insulating tongs even if the rubber insulation blanket is covered. . Therefore, the rubber insulation blanket protection work is carried out by the direct live wire in direct contact with the power facility, while the worker wears safety protection equipment such as rubber insulation sleeves and insulation rubber gloves.

Korean Patent Registration No. 10-1473820 (registration date: December 11, 2014) is a prior document related to the present invention, and in the prior document, a live wire operation method for distribution equipment is disclosed.

An object of the present invention is to provide a seat clip for hot wire work that allows the operator to easily and safely perform indirect hot wire work.

The present invention is capable of rotating correspondingly with respect to a rotating shaft, and a pair of gripping parts formed with a plurality of hooking grooves penetrating sideways so that a connecting ring having a ring shape provided in an insulating sheet is hooked. and a pair of operation units provided at the rear end of the gripping unit with respect to the rotational axis and configured to bring the gripping unit into close contact with each other or to separate the gripping unit from each other by rotation, wherein the plurality of locking grooves move the gripping unit in the front-rear direction one by one. It provides seat clips for hot wire work that are arranged facing each other and spaced apart from each other.

A plurality of concave wire fixing grooves facing each other so as to enclose the wires may be formed to correspond to each other on the opposite side of the pair of gripping parts on which the plurality of locking grooves are formed.

An inner circumferential surface of the plurality of wire fixing grooves may have a semicircular shape to correspond to an outer circumferential surface of the electric wire, and the plurality of wire fixing grooves may be spaced apart from each other along the front-rear direction of the holding part.

The sheet clip for hot wire work of the present invention may include a covering portion coated with a rubber material at the front end of the holding portion so that the holding portion adheres to the outer surface of the insulating sheet when the holding portion grips the insulating sheet.

As described above, the seat clip for hot-line work enables indirect live-line work to be performed easily and safely when protection work is performed on extra-high voltage distribution lines. Therefore, there is an effect that can drastically prevent safety accidents by fundamentally blocking workers from contacting the power line.

1 is a block diagram for showing a protection method for live wire work according to the present invention.
Figure 2 is a block diagram for showing the seat clip attachment step of the protection method for hot wire work according to the present invention.
3 is a perspective view for showing a state in which a first connecting ring part and a second connecting ring part are applied to an insulating sheet in a protection method for a live wire operation according to the present invention.
4 is a perspective view for showing a state in which an incision is formed in the protection method for live wire work according to the present invention.
5 is a perspective view showing a state in which second connecting rings are formed on both sides of an insulating sheet in the protection method for hot wire operation according to the present invention.
6 is a perspective view showing a state in which a gripping groove is formed in a gripping part of a protection method for a hot wire operation according to the present invention.
7 is a side view showing a state in which a gripping groove is formed in a gripping part of a protection method for a hot wire operation according to the present invention.
8 is a perspective view showing a state in which wire fixing grooves and locking grooves are formed in the holding part of the protection method for live wire work according to the present invention.
9 is a side view showing a state in which wire fixing grooves and locking grooves are formed in the holding part of the protection method for live wire work according to the present invention.
10 is a side view showing a state in which the operation unit of the protection method for hot-line work according to the present invention is formed inclined in one direction of the radial direction of the rotation shaft.
11 is an installation state diagram for illustratively showing the installation state of the insulation sheet and the sheet clip of the protection method for live wire operation according to the present invention.

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

The advantages and features of the present invention, and how to achieve them, will become clear with reference to the detailed description of the following embodiments in conjunction with the accompanying drawings.

However, the present invention is not limited by the embodiments disclosed below, but will be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention pertains. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims.

In addition, in the description of the present invention, if it is determined that related known technologies may obscure the gist of the present invention, a detailed description thereof will be omitted.

Figure 1 is a block diagram for showing a protection method for hot wire work according to the present invention, Figure 2 is a block diagram for showing the sheet clip mounting step of the protection method for hot wire work according to the present invention, Figure 3 is a block diagram according to the present invention It is a perspective view to show the state in which the first and second connecting rings are applied to the insulating sheet in the protection method for live wire operation. 4 is a perspective view for showing a state in which cutouts are formed in the protection method for hot-line work according to the present invention, and FIG. It is a perspective view to give.

6 is a perspective view showing a state in which gripping grooves are formed on the gripping part of the protection method for hot wire work according to the present invention, and FIG. 8 is a perspective view showing a state in which wire fixing grooves and locking grooves are formed in the holding part of the protection method for live wire work according to the present invention. 9 is a side view showing a state in which wire fixing grooves and locking grooves are formed in the holding part of the protection method for hot-line work according to the present invention, and FIG. 11 is a side view for showing a state inclined in any one direction, and FIG. 11 is an installation state diagram for exemplarily showing the installation state of the insulation sheet and the sheet clip of the protection method for live wire work according to the present invention.

The protection method for hot-line work according to the present invention is used when performing indirect live-line work in a work environment in which access is concerned within a live-line safety distance (90Cm) from distribution lines, and when working on oblique lines due to extension of high-tension lines and new branches, etc. It is possible to work in cases where access is concerned within the section and safety distance.

For example, downward jumper wire protection, suspension insulator protection, double iron protection, single iron protection, straight point LP insulator protection, upward jumper wire and bypass LP insulator protection, pole protection, female tie protection, It can be used for primary and secondary downline protection of transformers, COS protection, transformer protection, and overall protection of transformer columns.

Referring to FIG. 1, the protection method for hot wire work according to the present invention includes an insulation sheet attaching step (S100) in which a worker attaches an insulation sheet 100 with an insulation stick 20, and the attached insulation sheet 100 as an insulation object. Insulation sheet installation step (S200) of placing (10) in a wrapped state, and after the operator grips the seat clip 200 with the insulation stick 20, the insulation sheet 100 is operated by manipulating the seat clip 200. It includes a sheet clip fixing step (S300) of fixing to the insulation object 10.

In the insulating sheet attaching step (S100), the insulating sheet 100 is gripped using the tongs of the insulating stick 20, or the insulating stick 20 is attached to the connecting ring parts 110 and 120 attached to the outside of the insulating sheet 100. ) is a process of attaching by hanging the tongs, and the insulating sheet installation step (S200) is a process of covering the insulating sheet 100 on the outside of the insulating structure 10 to be protected. In the insulation sheet installation step (S200), the insulation sheet 100 may be positioned in a form of winding or wrapping the outside of the insulation object 10.

In addition, prior to the sheet clip fixing step (S300), a stick separation step in which an operator separates the tongs of the insulating stick 20 from the insulating sheet 100, and an auxiliary worker separates the insulating sheet with the tongs of another insulating stick 20 It may include an insulating sheet fixing step of holding the insulating sheet 100 and securely positioning the insulating sheet 100 on the object to be insulated 10 by holding the 100 .

The seat clip fixing step (S300) is a process in which the operator fixes the insulation sheet 100 to the insulation object 10 by manipulating the seat clip 200 after gripping the seat clip 200 with the insulation stick 20. . At this time, the sheet clip 200 may hold the insulating sheet 100 and the insulating structure 10 together.

On the other hand, prior to the insulating sheet attaching step (S100), as shown in FIG. 2, a seat clip attaching step (S10) of attaching the seat clip 200 to the connecting rings 110 and 120 of the insulating sheet 100 may be further included. can In the seat clip attaching step (S10), a method of inserting the gripping portion 210 of the seat clip 200 into the connecting rings 110 and 120 attached to the outside of the insulating sheet 100 may be used. At this time, the seat clip 200 may hold the insulation object 10 or the insulation sheet 100 and the insulation object 10 together in a state in which the connection rings 110 and 120 of the insulation sheet 100 are attached.

The insulating sheet 100 is a configuration for wrapping the insulation object 10 of LP insulators, suspension insulators, complete iron, electric poles, COS, transformers, and wires (jumper wires, down wires, etc.), and is provided with an insulating material so that electricity does not flow do.

Here, the insulating sheet 100 may be formed in a square (regular) or rectangular (straight) shape. can be made with When the insulating sheet 100 is manufactured in a rectangular shape, the insulating sheet 100 may be manufactured in a size of 91 cm x 31 cm or the like. Of course, the shape and size of the insulating sheet 100 can be variously applied as needed.

In addition, the insulating sheet 100 may be manufactured using one sheet, but may be manufactured with EVA (Ethylene-Vinyl Acetate) or TPE (Thermo Plastic Elastomer), and the endothelial 101 in contact with the insulation object 10, and the endothelial It is bonded to one side of 101 and exposed to the outside, and may be composed of an outer shell 102 made of TPU (Thermoplastic Poly Urethane). That is, since the outer shell 102 is made of Thermoplastic Polyurethane (TPU), durability and mechanical strength are excellent. In addition, it is light and flexible to be easily handled as an insulation stick (20).

A connecting ring portion is attached to the insulating sheet 100 according to an embodiment of the present invention, and a plurality of first connecting ring portions 110 having a ring shape are provided to hook the connecting ring portion to the seat clip 200. The first connecting ring portion 110 may be provided along an edge of the insulating sheet. A plurality of first connection rings 120 may be coupled to an edge of the insulating sheet 100 and one or both surfaces of the insulating sheet 100 so that the gripping part 210 to be described later may be inserted therein.

In addition, the connecting ring part according to an embodiment of the present invention has a ring shape to be hooked to the seat clip 200, and both ends may be provided with a plurality of second connecting ring parts 120 that are detachable. The first connecting ring part 110 and the second connecting ring part 120 can be used for adjusting the position and shape by hanging the insulation stick 20 . Here, Velcro tapes 121 corresponding to both ends of the second connecting ring portion 120 may be respectively attached, and the Velcro tapes 121 of the second connecting ring portion 120 may be separated or attached to each other.

The insulating sheet 100 of this type can be used to wrap the insulation object 10 such as LP insulator, suspension insulator, iron, electric pole, COS, etc., and the insulation object 10 by the gripping force of the sheet clip 200 to be described later ) can be fixedly installed.

The insulating sheet (cutting type, 100) according to another embodiment of the present invention includes a through portion 130 penetrated vertically so that the insulation object 10 is located therein, and a cutout cut along the through portion 130 and the edge. A portion 140 may be formed. The penetrating portion 130 may be formed at a central portion of the insulating sheet 100, and the cutout 140 may be cut from one side of the penetrating portion 130 to one side of the insulating sheet 100, but the incision The number and location of (140) can be applied in various ways as needed.

The insulating sheet 100 of this type can be used to wrap the insulation object 10 such as iron or transformer, and can be fixedly installed on the insulation object 10 by the gripping force of the sheet clip 200 to be described later. .

In the sheet clip fixing step (S300) shown in FIG. 1 or the seat clip attaching step (S10) shown in FIG. 2, the insulating sheet 100 is attached to the outside of the insulation object 10 by a gripping force. In order to do this, the seat clip 200 is provided at the rear end of the gripping part 210 with respect to a pair of gripping parts 210 and a pair of gripping parts 210 that can rotate correspondingly with respect to the rotational shaft 201, and rotates It may be provided with a pair of control units 220 that close or separate the gripping unit 210 by the.

As shown in FIGS. 6 and 7 , the pair of gripping parts 210 according to an embodiment of the present invention may have concave gripping grooves 211 correspondingly formed on one surface facing the insulating sheet 100 to cover the outside. The gripping groove 211 may form a concave curvature along the front-back direction so as to cover the outside of the insulation object 10 such as the electric pole 11, and the gripping portion 210 may be made of high-strength plastic or the like.

A pair of gripping parts 210 according to another embodiment of the present invention has a concave wire fixing groove 212 on one side facing each other so as to wrap the insulation object 10, such as an electric wire 12, as shown in FIGS. 6 and 7. can be formed to A plurality of wire fixing grooves 212 may be arranged in a spaced apart state along the front and rear direction of the gripping part 210, and have different sizes to correspond to the diameter of the wire 12 or the like. The inner circumferential surface of the wire fixing groove 212 may have a shape such as a semicircle to correspond to the outer circumferential surface of the electric wire 12 .

And, in the direction opposite to the gripping parts 210, a hooking groove 213 is formed through the side so that the first connecting ring part 110 or the second connecting ring part 120 of the insulating sheet 100 is hooked. can A plurality of locking grooves 213 may be arranged in a spaced apart state along the front-rear direction of the gripping part 210 . The plurality of locking grooves 213 face each other along the front and rear directions of the pair of gripping parts 210 and are spaced apart from each other.

With this configuration, the operator inserts one side edge of the ring-shaped connecting rings 110 and 120 into the through side of one of the pair of locking grooves 213 facing each other, and connects The connecting ring portion of the insulating sheet 100 is easily inserted into the penetrating side of the other locking groove 213 of the pair of locking grooves 213 facing the other edge of the hooks 110 and 120 ( 110 and 120 may be connected to the gripping portion 210 of the seat clip 200.

In other words, the operator inserts a non-loop strap or band into the locking groove and forms a knot in the strap or band to form a loop to secure the insulating sheet 100 to the seat clip 200. Instead of connecting, the insulating sheet 100 can be connected to the seat clip 200 simply by inserting the connecting rings 110 and 120 made in a ring shape in advance into the pair of engaging grooves 213 and 213 facing each other. there is. Therefore, the operator can perform the indirect live line work more quickly and safely.

In addition, a coating portion 214 coated with a material such as rubber may be provided at the front end of the gripping portions 210, and when the gripping portion 210 grips the insulating sheet 100, the covering portion 214 Since it adheres to the outer surface of the insulating sheet 100, it is possible to prevent the position of the gripping part 210 from being changed due to slipping.

The pair of control units 220 may each protrude to the rear of the gripping units 210 with respect to the rotational shaft 201, and frictional force when in close contact with the tongs of the insulation stick 20 is on the opposite side of the control units 220. A plurality of non-slip protrusions 221 may be formed to increase. In addition, the control unit 220 may be made of high-strength plastic or the like.

Meanwhile, as shown in FIG. 10 , the control unit 220 may be formed to be inclined in one direction among rotational directions of the gripping unit 210 . That is, since the control unit 220 has a direction inclined in a direction in which the operator is located (eg, downward), the operator can easily grip the control unit 220 using the insulation stick 20 .

On the other hand, the seat clip 200 may further include an elastic action unit 230 that applies an elastic return force so that the gripping units 210 rotate in the opposite direction when the rotation operation of the control unit 220 is stopped. there is. The elastic action unit 230 may use a torsion spring coupled to the rotational shaft 201, and both ends of the torsion spring may be coupled to the gripping units 210, respectively.

The protection method for live wire work according to the present invention is applied when indirect live wire work is carried out in places where access is concerned within the safety distance (90Cm) between distribution lines and live wire (e.g., when fastening cable clamps with indirect live wire during the construction of the mobile transformer construction method). , When a worker works within a safe distance from a transformer downline or COS) and when there is a concern about access within a safe distance from an existing live section when working on an oblique line due to extension of a high-tension line or new branch installation (e.g., terminal high-voltage line) It can be used in the case of extending the line, protecting the existing line, installing insulators and wires, and then compressing the existing and newly installed wires with indirect live wires).

For example, in the case of protecting general materials such as insulators, complete iron, and equipment, an insulation sheet (general type, cut type, 100) is attached with an insulation stick 20, and then the insulation target object 10 to be protected is covered. Thereafter, the holding portion 210 of the sheet clip 200 can be opened with the insulating stick 20 to fix the insulating sheet 100 to the object 10 to be protected.

In the case of protecting wires such as jumper wires and transformer down wires, after combining the insulation sheet (straight type, 100) with the sheet clip 200, attach the sheet clip 200 with the insulation stick 20 to protect the wire to be protected. Fix to (12). Then, the sheet clip 200 can be opened with the insulation stick 20 to fix the insulation sheet 100 to the wire to be protected.

In the protection method for hot wire work according to the present invention, safety accidents can be drastically prevented by fundamentally blocking workers from contacting power lines by working with indirect live wires when protection work is carried out on extra-high voltage distribution lines.

In addition, by replacing the existing rubber insulation blanket with the insulation sheet 100, it is possible to easily wrap the power equipment using the insulation stick 20 for indirect live wire, and to operate it with the insulation stick 20 for indirect live wire. The insulating sheet 100 can be easily fixed to the power facility using the sheet clip 200 that can be used.

In addition, the operator had to wear heavy safety protective equipment when performing direct live wire protection work with the existing rubber insulation blanket, but the protection method for hot wire work using the insulation sheet 100 for indirect live wire does not require the operator to wear heavy safety protective equipment. easier than this

So far, specific embodiments of the protection method for live wire work according to the present invention have been described, but it is obvious that various modifications are possible within the limits that do not deviate from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments and should not be conveyed, and should be defined by not only the claims to be described later, but also those equivalent to these claims.

That is, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive, and the scope of the present invention is indicated by the claims to be described later rather than the detailed description, and the meaning and scope of the claims and All changes or modified forms derived from the equivalent concept should be construed as being included in the scope of the present invention.

10: insulation object 11: electric pole
12: wire 20: insulation stick
100: insulation sheet 101: inner skin
102: outer shell 110: first connecting ring
120: second connecting ring 121: tape as a belt
200: seat clip 201: axis of rotation
210: gripping part 211: gripping groove
212: wire fixing groove 213: locking groove
214: coating unit 220: control unit
221: non-slip protrusion 230: elastic action part
C: center of rotation

Claims (4)

a pair of gripping parts which are rotatable relative to a rotating shaft and have a plurality of hooking grooves penetrating laterally so that the ring-shaped connecting hooks provided on the insulating sheet are hooked; and
A pair of control units provided at the rear end of the gripping unit with respect to the rotational axis and configured to adhere to or separate the gripping unit by rotation;
A sheet clip for hot-line work, characterized in that the plurality of catching grooves are arranged to face each other and to be spaced apart from each other along the front and rear directions of the gripping part.
According to claim 1,
A seat clip for live wire work, characterized in that a plurality of concave wire fixing grooves facing each other so as to surround the electric wire are formed to correspond to each other on the opposite side of the pair of gripping parts to the side on which the plurality of hooking grooves are formed.
According to claim 2,
Inner circumferential surfaces of the plurality of wire fixing grooves have a semicircular shape to correspond to the outer circumferential surfaces of the wires,
A seat clip for live wire work, characterized in that the plurality of wire fixing grooves are arranged spaced apart along the front and rear directions of the holding part.
According to claim 1,
A sheet clip for hot-line work, characterized in that it comprises a; coating portion coated with a rubber material at the front end of the gripping portion so that the gripping portion adheres to the outer surface of the insulating sheet when the gripping portion grips the insulating sheet.

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