KR102597938B1 - Sheet clip for live wire working - Google Patents

Abstract

The disclosed sheet clip for live wire work includes a pair of holding parts that can be rotated correspondingly about a rotating axis and are formed with a plurality of locking grooves penetrating laterally so that the ring-shaped connecting ring provided on the insulating sheet is caught; And a pair of operation units provided at the rear end of the gripper with respect to the rotation axis, and which rotate to bring the gripper into close contact with or separate them from each other, wherein the plurality of locking grooves face each other in pairs along the front and rear directions of the gripper and are spaced apart from each other. We provide sheet clips for live wire work that are arranged appropriately.

Description

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

The present invention relates to a protective device for live wire work that can protect power equipment without contacting the power equipment, and more specifically, to a sheet clip for live wire work for fixing an insulating sheet to a wire.

When working on live wires in a distribution line, if there is a risk that workers may come close to 22.9kV power facilities, they must use protective gear to protect the power facilities. The protective equipment commonly used at this time is a rubber insulating blanket. This work can only be performed with direct live wires where workers are in direct contact with power facilities, but today's safety-oriented social atmosphere requires that work be performed with non-contact indirect live wires using insulating sticks for the safety of workers.

In order to protect power facilities through indirect live wire work, you must use insulation sticks for indirect live wires, cover the power equipment with a rubber insulation blanket, and then secure it with insulating clips. Conventional rubber insulation blankets were heavy and hard, so it was very difficult to handle them with indirect live wire sticks. Even if the power equipment was covered with a rubber insulation blanket, it was very difficult to open the insulation claws with an indirect live wire insulation stick to secure the rubber insulation blanket, and the wire Indirect live wire protection is not possible with any type of protection.

In addition, the rubber insulation blanket is heavy and hard, making it difficult for two workers to lift it at the same time, and general power equipment is curved, so even if the rubber insulation blanket is covered, it is very difficult to fix the power equipment and the rubber insulation blanket together with insulating tongs. . Therefore, rubber insulation blanket protection work is performed with workers wearing safety protective equipment such as rubber insulation sleeves and insulation rubber gloves, and with direct live wires in direct contact with power facilities.

Prior literature related to the present invention includes Republic of Korea Patent No. 10-1473820 (registration date: December 11, 2014), which discloses a method for working with live wires in distribution facilities.

The purpose of the present invention is to provide a sheet clip for live wire work that allows workers to easily and safely perform indirect live wire work.

The present invention includes: a pair of gripping parts that are rotatable relative to a rotation axis and are formed with a plurality of laterally penetrating locking grooves so that the ring-shaped connecting ring provided on the insulating sheet is locked; and a pair of operating units provided at the rear end of the grip unit with respect to the rotation axis, and for rotating the grip unit to bring the grip unit into close contact with or space it apart. Accordingly, sheet clips for live wire work are provided that are arranged facing each other and spaced apart.

A plurality of opposing concave wire fixing grooves may be formed on the opposite side of the pair of gripping parts from the side on which the plurality of locking grooves are formed to surround the electric wire.

The inner peripheral surface of the plurality of wire fixing grooves has a semicircular shape corresponding to the outer peripheral surface of the electric wire, and the plurality of wire fixing grooves may be arranged to be spaced apart along the front-back direction of the gripper.

The sheet clip for live wire work of the present invention may include a coating portion coated with a rubber material at the front end of the gripping portion so as to come into close contact with the outer surface of the insulating sheet when the gripping portion grips the insulating sheet.

The sheet clip for live wire work as described above allows easy and safe indirect live wire work to be performed when protecting work on extra-high voltage distribution lines. Therefore, there is an effect of dramatically preventing safety accidents by fundamentally blocking workers from contacting power lines.

Figure 1 is a block diagram showing a protection method for live wire work according to the present invention.
Figure 2 is a block diagram showing the sheet clip attachment step of the protection method for live wire work according to the present invention.
Figure 3 is a perspective view showing a state in which the first connection ring portion and the second connection ring portion are applied to the insulating sheet in the protection method for live wire work according to the present invention.
Figure 4 is a perspective view showing a state in which an incision is formed in the protective method for live wire work according to the present invention.
Figure 5 is a perspective view showing a state in which second connection rings are formed on both sides of an insulating sheet in the protection method for live wire work according to the present invention.
Figure 6 is a perspective view showing a state in which a gripping groove is formed in the gripping part of the protective method for live wire work according to the present invention.
Figure 7 is a side view showing the state in which the gripping groove is formed in the gripping part of the protective method for live wire work according to the present invention.
Figure 8 is a perspective view showing a state in which a wire fixing groove and a locking groove are formed in the gripping part of the protective method for live wire work according to the present invention.
Figure 9 is a side view showing a state in which a wire fixing groove and a locking groove are formed in the gripping part of the protective method for live wire work according to the present invention.
Figure 10 is a side view showing a state in which the operating part of the protection method for live wire work according to the present invention is formed to be inclined in any one of the radial directions of the rotation axis.
Figure 11 is an installation state diagram illustrating the installed state of the insulating sheet and sheet clip of the protection method for live wire work according to the present invention.

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

The advantages and features of the present invention and how to achieve it will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms, but the present embodiments only serve to ensure that the disclosure of the present invention is complete and are within the scope of common knowledge in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Additionally, in describing the present invention, if it is determined that related known techniques may obscure the gist of the present invention, detailed description thereof will be omitted.

Figure 1 is a block diagram showing the protective method for live wire work according to the present invention, Figure 2 is a block diagram showing the sheet clip installation step of the protective method for live wire work according to the present invention, and Figure 3 is a block diagram showing the sheet clip installation step of the protective method for live wire work according to the present invention. This is a perspective view to show the first and second connection rings applied to the insulating sheet in the protection method for working with live wires. In addition, Figure 4 is a perspective view showing a state in which a cut is formed in the protective method for live wire work according to the present invention, and Figure 5 shows a state in which second connection rings are formed on both sides of the insulating sheet in the protective method for live wire work according to the present invention. This is a perspective view to give.

Figure 6 is a perspective view showing a state in which a grip groove is formed in the grip part of the protective method for live wire work according to the present invention, and Figure 7 shows a state in which a grip groove is formed in the grip part of the protective method for live wire work according to the present invention. It is a side view for, and Figure 8 is a perspective view showing the state in which the wire fixing groove and the locking groove are formed in the gripping part of the protective method for live wire work according to the present invention. In addition, Figure 9 is a side view showing a state in which a wire fixing groove and a locking groove are formed in the gripping part of the protective method for live wire work according to the present invention, and Figure 10 is a view showing the operation part of the protective method for live wire work according to the present invention in the radial direction of the rotation axis. It is a side view to show a state in which the insulation sheet and sheet clip of the protective method for live wire work according to the present invention are installed, and Figure 11 is an installation state diagram to exemplarily show the state in which the insulation sheet and sheet clip are installed.

The protective method for live wire work according to the present invention is used when performing indirect live wire work in a work environment where there is a risk of approaching within a safety distance (90 cm) of a live wire from a distribution line, and when working on a diagonal line due to the extension of a high-voltage line, the construction of a new branch, etc. This allows work to be done in cases where there are concerns about access within the section and safety distance.

For example, downward jumper wire protection, suspended insulator protection, double-armor protection, single-arm protection, straight point LP insulator protection, upward jumper wire and bypass LP insulator protection, pole protection, arm tie protection, It can be used for transformer primary and secondary downline protection, COS protection, transformer protection, and overall transformer protection.

Referring to Figure 1, the protection method for live wire work according to the present invention includes an insulation sheet attachment step (S100) in which the worker attaches the insulation sheet 100 to the insulation stick 20, and attaching the attached insulation sheet 100 to an insulation object. In the insulating sheet installation step (S200) of mounting the insulating sheet in a state surrounding (10), and after the worker holds the sheet clip 200 with the insulating stick 20, the insulating sheet 100 is manipulated by manipulating the sheet clip 200. It includes a sheet clip fixing step (S300) for fixing to the insulating object 10.

In the insulating sheet attachment step (S100), the insulating sheet 100 is held using the tongs of the insulating stick 20, or the insulating stick 20 is attached to the connection ring parts 110 and 120 attached to the outside of the insulating sheet 100. ) is a process of hanging and attaching 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 insulating sheet installation step (S200), the insulating sheet 100 may be placed on the outside of the insulating object 10 in a rolled or wrapped form.

In addition, before the sheet clip fixing step (S300), a stick separation step in which the worker separates the tongs of the insulating stick 20 from the insulating sheet 100, and the assistant 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 fixing the insulating sheet 100 to the insulating object 10.

The sheet clip fixing step (S300) is a process in which the worker holds the sheet clip 200 with the insulating stick 20 and then manipulates the sheet clip 200 to fix the insulating sheet 100 to the insulating object 10. . At this time, the sheet clip 200 may hold the insulating sheet 100 and the insulating structure 10 together.

On the other hand, before the insulating sheet attaching step (S100), a sheet clip attaching step (S10) of attaching the sheet clip 200 to the connecting ring portions 110 and 120 of the insulating sheet 100 as shown in FIG. 2 may be further included. You can. The sheet clip attachment step (S10) may be performed by inserting the gripping portion 210 of the sheet clip 200 into the connecting ring portions 110 and 120 attached to the outside of the insulating sheet 100. 200 may hold the insulating object 10 or the insulating sheet 100 and the insulating object 10 together in a state in which the connecting ring portions 110 and 120 of the insulating sheet 100 are attached.

The insulating sheet 100 is configured to surround the insulating object 10 of LP insulators, suspension insulators, iron bars, electric poles, COS, transformers, and electric wires (jumper wires, cut-off wires, etc.), and is made of an insulating material to prevent electricity from passing through. do.

Here, the insulating sheet 100 can be formed into a square (general type), rectangle (straight type), etc. When the insulating sheet 100 is manufactured in a square shape, the insulating sheet 100 has a size such as 91 cmㅧ91 cm. It can be produced with When manufacturing the insulating sheet 100 in a rectangular shape, the insulating sheet 100 can be manufactured in a size such as 91cmㅧ31cm. Of course, the shape and size of the insulating sheet 100 can be applied in various ways as needed.

In addition, the insulation sheet 100 can be manufactured using a single sheet, but can also be manufactured with EVA (Ethylene-Vinyl Acetate) or TPE (Thermo Plastic Elastomer), and includes an inner skin 101 in contact with the insulating object 10, and an inner skin. 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, the outer shell 102 is made of TPU (Thermoplastic Poly Urethane) and therefore has excellent durability and mechanical strength. It is also light and flexible for easy handling with the insulating stick (20).

A connecting ring portion is attached to the insulating sheet 100 according to an embodiment of the present invention. The connecting ring portion may be provided with a plurality of first connecting ring portions 110 having a ring shape in order to be hooked to the sheet clip 200. The first connection ring portion 110 may be provided along the edge of the insulating sheet. A plurality of first connection ring parts 120 may be coupled to the edge of the insulating sheet 100 and one or both sides of the insulating sheet 100 so that the holding part 210, which will be described later, can be inserted.

In addition, the connection ring portion according to an embodiment of the present invention has a ring shape to be hooked to the seat clip 200, and may be provided with a plurality of second connection ring portions 120 that are detachable at both ends. The first connection ring part 110 and the second connection ring part 120 can be used to adjust the position and shape by hanging on the insulating stick 20. Here, the second connection ring portion 120 may have corresponding Velcro tapes 121 attached to both ends, and the Velcro tapes 121 of the second connection ring portion 120 may be separated from or attached to each other.

The insulating sheet 100 of this type can be used to surround an insulating object 10 such as an LP insulator, a suspension insulator, a wire, an electric pole, and a COS. ) can be fixedly installed.

An insulating sheet (cut type, 100) according to another embodiment of the present invention includes a penetration part 130 penetrating upward and downward so that the insulating object 10 is positioned inside, and a cut along the penetration part 130 and an edge. Part 140 may be formed. The penetrating portion 130 may be formed approximately at the center of the insulating sheet 100, and the cut portion 140 may be cut from one side of the penetrating portion 130 to one side of the insulating sheet 100. 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 surround an insulating object 10 such as iron, transformer, etc., and can be fixedly installed on the insulating object 10 by the gripping force of the sheet clip 200, which will be described later. .

The sheet clip 200 in the sheet clip fixing step (S300) shown in FIG. 1 or the sheet clip attaching step (S10) shown in FIG. 2 attaches the insulating sheet 100 to the outside of the insulating object 10 using a gripping force. In order to do this, the seat clip 200 is provided with a pair of holding parts 210 that can be correspondingly rotated about the rotation axis 201, and at the rear end of the holding part 210 about the rotation axis 201, and can be rotated. A pair of operation units 220 that bring the gripping unit 210 into close contact with or space them apart may be provided.

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

A pair of gripping parts 210 according to another embodiment of the present invention has a concave wire fixing groove 212 on one opposing surface so as to wrap an insulating object 10 such as an electric wire 12, as shown in FIGS. 8 and 9. can be formed correspondingly. The wire fixing grooves 212 may be arranged in a plurality spaced apart state along the front and rear direction of the grip part 210, and have different sizes to correspond to the diameter of the wire 12, etc. The inner peripheral surface of the wire fixing groove 212 may have a shape such as a semicircle to correspond to the outer peripheral surface of the wire 12.

In addition, in the direction opposite to the grip parts 210, a locking groove 213 is formed to penetrate laterally so that the first connection ring part 110 or the second connection ring part 120 of the insulating sheet 100 is locked. You can. The locking grooves 213 may be arranged in a plurality spaced apart manner along the front and rear directions of the gripping portion 210. The plurality of locking grooves 213 are arranged to face each other and be spaced apart from each other along the front-back direction of the pair of gripping parts 210.

With this configuration, the worker inserts one edge of the connecting ring portions 110 and 120, which are previously made into a ring shape, into the penetrating side of one of the pair of locking grooves 213 facing each other, and connects them. The connection ring portion ( 110, 120) can be connected to the gripping portion 210 of the seat clip 200.

In other words, the worker inserts a strap or band that is not in the shape of a ring into the catching groove and knots the strap or band in the shape of a ring to attach the insulating sheet 100 to the sheet clip 200. Rather than connecting, the insulating sheet 100 can be connected to the sheet clip 200 simply by inserting the connecting ring parts 110 and 120, which are previously made into a ring shape, into a pair of opposing locking grooves 213 and 213. there is. Therefore, workers can perform indirect live wire work more quickly and safely.

In addition, the front end of the gripping parts 210 may be provided with a covering part 214 coated with a material such as rubber, and when the gripping part 210 grips the insulating sheet 100, the covering part 214 Since it is in close contact with the outer surface of the insulating sheet 100, it is possible to prevent the position of the gripper 210 from changing due to slipping.

The pair of operating units 220 may respectively protrude to the rear of the gripping units 210 based on the rotation axis 201, and a friction force is applied to the opposite side of the operating units 220 when they are in close contact with the tongs of the insulating stick 20. A number of anti-slip protrusions 221 may be formed to increase . Additionally, the control unit 220 can be made of high-strength plastic, etc.

Meanwhile, the manipulation unit 220 may be formed to be inclined in any one of the directions in which the gripping unit 210 is rotated, as shown in FIG. 10 . That is, since the operating unit 220 has an inclined direction in the direction in which the operator is located (such as downward), the operator can easily hold the operating unit 220 using the insulating stick 20.

On the other hand, the seat clip 200 may be further provided with an elastic action portion 230 that applies an elastic return force so that the grip portions 210 rotate in the facing direction when the rotation of the manipulation portion 220 is stopped. there is. The elastic acting part 230 may use a torsion spring coupled to the rotating shaft 201, and both ends of the torsion spring may be coupled to the gripping parts 210, respectively.

The protective method for live wire work according to the present invention is used when performing indirect live wire work in a location where access is concerned within the safety distance (90 cm) of the distribution line and live wire (e.g., when fastening a cable clamp with an indirect live wire during the construction of a mobile transformer method). , when workers are working within a safe distance from the transformer downline and COS) and when there is concern about approaching within a safe distance from the existing live line section when working on diagonal lines due to extension of high-voltage lines or new branches (e.g. terminal high-voltage lines) It can be used when extending a line, protecting the existing line, installing new insulators and electric wires, and then compressing the existing and new electric wires into indirect live wires).

For example, when protecting general materials such as insulators, iron bars, and devices, attach an insulating sheet (general type, cut type, 100) with an insulating stick (20), and then cover the insulating object (10) to be protected. Thereafter, the gripping portion 210 of the sheet clip 200 can be opened using the insulating stick 20 and the insulating sheet 100 can be fixed to the insulating object 10 to be protected.

When protecting electric wires such as jumper wires, transformer downwires, etc., combine the insulating sheet (straight type, 100) and the sheet clip (200), then attach the sheet clip (200) with the insulating stick (20) to the wire to be protected. Fix it at (12). Afterwards, the sheet clip 200 can be opened with the insulating stick 20 and the insulating sheet 100 can be fixed to the wire to be protected.

The protective method for live wire work according to the present invention can dramatically prevent safety accidents by fundamentally blocking workers from contacting power lines by working with indirect live wires when performing protection work 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 protect the power equipment by using the insulation stick (20) for indirect live wire, and it can be operated with the insulation stick (20) for indirect live wire. The insulating sheet 100 can be easily fixed to power equipment using the sheet clip 200.

In addition, when performing direct live line protection work using the existing rubber insulation blanket, workers had to wear heavy safety gear, but the protective method for live line work using the indirect live line insulation sheet (100) allows workers to work without having to wear heavy safety gear. It's easier than this.

So far, specific embodiments of the protective method for live wire work according to the present invention have been described, but it is obvious that various implementation modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the claims and equivalents thereof as well as the claims described later.

That is, the above-described embodiments should be understood in all respects as illustrative 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 falling within the scope of the present invention.

10: Insulating object 11: Electric pole
12: wire 20: insulation stick
100: insulation sheet 101: inner skin
102: outer shell 110: first connection ring portion
120: Second connection ring 121: Tape with belt
200: seat clip 201: rotation axis
210: gripping part 211: gripping groove
212: Wire fixing groove 213: Locking groove
214: covering part 220: operating part
221: Non-slip protrusion 230: Elastic acting portion
C: Center of rotation

Claims (4)

A pair of gripping parts that can be correspondingly rotated about the rotation axis and are formed with a plurality of locking grooves penetrating laterally so that the ring-shaped connecting ring provided on the insulating sheet can be hooked. and
It includes a pair of operating units provided at the rear end of the grip unit with respect to the rotation axis, and which rotate to bring the grip unit into close contact with or space it apart,
The plurality of locking grooves are arranged in pairs to face each other and be spaced apart from each other along the front-to-back direction of the gripper,
One edge of the link portion having the ring shape is inserted into the penetrating side of one of the pair of locking grooves arranged to face each other and be spaced apart from each other, and the other of the pair of locking grooves A sheet clip for live wire work, characterized in that the other edge of the connection ring having the ring shape is inserted into the penetrating side of the locking groove.
According to claim 1,
A sheet clip for live wire work, characterized in that a plurality of opposing concave wire fixing grooves are formed on the opposite side of the pair of holding parts where the plurality of locking grooves are formed to surround the electric wire.
According to clause 2,
The inner peripheral surface of the plurality of wire fixing grooves has a semicircular shape corresponding to the outer peripheral surface of the electric wire,
A sheet clip for live wire work, characterized in that the plurality of wire fixing grooves are arranged to be spaced apart along the front and rear directions of the gripping part.
According to claim 1,
A sheet clip for live wire work, characterized in that it includes a coating portion formed by covering a front end of the gripping portion with a rubber material so that the gripping portion is in close contact with an outer surface of the insulating sheet when the gripping portion grips the insulating sheet.

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