KR20230094704A - Clamps for indirect live wire and wire tensioners using them and indirect live wire method using the wire tensioner - Google Patents

Abstract

The present invention provides clamps for an indirect live wire and wire tensioners using the same, and an indirect live wire method using the same. The clamps for an indirect live wire comprise: a main body including a main frame integral with a wire holding block; a rotating part including an idling shaft and a stick connector installed at an end of the idling shaft; and a wire tightening block. A lifting block lifted as the idling shaft rotates is provided. The lifting block is variably guided only in the longitudinal direction of the idling shaft. The wire tightening block is variable together with the lifting block. The wire tightening block and the lifting block are hinged to each other. Therefore, even if the thickness of the wire is not constant, a wire is firmly tensioned.

Description

Clamps for indirect live wire, wire tensioner using the same, and indirect live wire method using the same {Clamps for indirect live wire and wire tensioners using them and indirect live wire method using the wire tensioner}

The present invention relates to a clamp for indirect live wire for tensioning a wire fastened to a part where disconnection or replacement is expected in a hot wire method for various maintenance work of a distribution system, a wire tensioner using the same, and an indirect live wire method using the wire tensioner It is about.

In the live wire method of the power distribution system, a smart stick made of insulating material is used so that work in a section requiring maintenance can be performed more safely. In addition, clamps for fixing both ends of the working section can be installed in the section where wire stripping and cutting and bypass cable installation for replacing the defective section are performed so that stable work can be performed.

However, in the prior art, it is difficult to find a clamp for a live wire method that can easily grasp and release wires in the operation of a power transmission system, and as can be seen in the photo of FIG. 1, most of the fixtures for wire mounting are used. In addition, looking at the technologies related to clamps for live wires that have been disclosed in the prior art, as suggested in Patent Registration No. 10-2060927, they have a fairly complex configuration to secure the wire, or are driven by hydraulic pressure, resulting in high manufacturing costs and high labor costs. Weight is a significant problem to deal with.

Registered Patent Publication No. 10-1912558 (Public date: 2018. 10. 29)

Accordingly, the present invention provides a degree of freedom to the wire gripping means to prevent scratches or damage to the wire coating, and the wire thickness is It is intended to provide a clamp for indirect live wire that can firmly hold the wire even if the wire is not constant, a wire tensioner using the same, and an indirect live wire method using the same.

Clamp for rotor stick according to the present invention for achieving this object is a main body consisting of a wire mounting block in close contact with the top of the wire, a main frame integrally formed with the wire mounting block, and installed to be idling on the main frame A rotating part composed of an idle shaft, a stick connector for fastening a rotor stick for live work installed at an end of the idle shaft, and a wire fastening block that is variable by rotation of the idle shaft and fastens wires together with the wire holding block, A lifting block screwed to the shaft and lifted as the idle shaft rotates is provided, and the wire clamping block is coupled to the lifting block to be variable together with the lifting block, and the wire clamping block and the lifting block are hinged to each other, Since the wire fastening block is capable of relative rotation with respect to the lifting block, it is possible to firmly grasp the wire even if the thickness of the wire is not constant, and damage to the wire can be prevented.

Here, preferably, as the wire fastening block approaches the wire mounting block, a wire fastening block adhesion guide for guiding the wire fastening block is formed in the main frame so that the surfaces of the wire fastening block and the wire mounting block facing each other are parallel. It can be.

In this case, the elevating block and the wire fastening block may be hinged to the wire fastening block as well as a link arm, which is a member that is preferably hinged to the elevating block.

In addition, the lifting block interlocking hinge pin, which is a hinge axis that hinges the lifting block and the link arm, and the link arm interlocking hinge pin, which is a hinge axis that hinges the wire fastening block and the link arm, are preferably independent from each other in the link arm As installed, the wire fastening block may be inclined from a horizontal angle due to an increase in the degree of freedom.

In addition, the main frame is connected to the wire fastening block, and as the wire fastening block approaches the wire holding block, a rotational force is applied to the link arm with an elastic force so that the wire fastening block adheres to the wire fastening block close guide. can be installed

At this time, the push arm and the link arm are preferably hinged to each other due to a push arm interlocking hinge pin penetrating both the push arm and the link arm, the link arm rotates around the link arm interlocking hinge pin, and the link arm The lifting block interlocking hinge pin is installed on one side of the interlocking hinge pin, and the push arm interlocking hinge pin is installed on the other side of the interlocking hinge pin. When the push arm rotates the link arm with an elastic force, the hinge is hinged to the lifting block interlocking hinge pin The connected wire fastening block is in close contact with the wire fastening block close guide so that the wire fastening block can be maintained horizontally.

Further, a push arm support guide having a through hole larger than an outer diameter of the push arm is formed in the main frame, a spring is installed in the push arm, and spring support shafts may protrude from both sides of the push arm.

At this time, a wear-resistant special steel pin, which is preferably a rolling roller member, is installed on the inner circumferential surface of the through hole formed in the push arm support guide and in contact with the push arm, so that there is friction between the push arm and the inner circumferential surface of the through hole even when used for a long time. Mechanism error due to can be suppressed.

The idle shaft is preferably coupled in a direction in which the stick connector is directed toward the lower part of the main frame, or the idle shaft is coupled in a direction in which the stick connector is directed toward an upper portion of the main frame.

Meanwhile, the wire tensioner according to the present invention is a combination of an indirect live wire clamp made as described above and a stick member made of an insulating material coupled to the end of the push arm protruding through a through hole formed in the push arm support guide, A stick body in which two sticks having different diameters can be inserted into or withdrawn from the other one, and either one of the two sticks having different diameters installed in the stick body can be withdrawn or inserted It includes a tension unit that extends or contracts the length of the stick body, and two clamps for indirect live wire are installed on both sides of the stick body, so that when the two clamps for indirect live wire grip the wire together, When the tension unit shrinks the length of the stick body, length leeway is generated in the wire between the two clamps for indirect live wire, so that the live wire work on the wire can be easily performed.

Here, the tension unit is preferably provided with a rotor stick fastener so that the rotor stick, which is made of an insulating material and has a built-in rotor, can be fastened to the side, and a bevel gear may be provided inside the tension unit.

At this time, the clamp for the rotor stick preferably further includes a rigid sealed wire temporary holder in which a hook-shaped bent part is formed and a fixing means for fixing the wire temporary holder, so that the bent part can be mounted on the wire in live wire work. Thus, it is possible to prevent the clamp for the rotor stick, the stick body, and the tension unit from falling during the preparation process for the live wire work.

On the other hand, the indirect live wire method according to the present invention using the above-described wire tensioner includes the steps of gripping the wire with the two clamps for indirect live wire and installing the wire tensioner on the wire, and stretching the stick body with the tension unit. In the step of stretching the wire between the two rotor stick clamps, removing the coating from the wire by a certain length using a wire stripping machine and connecting a straight sleeve, and removing the coating, the coating is Cutting the wire in a predetermined area of the removed section and then attaching temporary insulation terminal caps to both cut ends of the wire formed by the cutting, and replacing or maintaining defective equipment in the section formed by the cutting of the wire and removing the temporary insulated terminal cap, connecting the cut wire with a straight sleeve to compress the straight sleeve and removing the bypass cable, and taping the straight sleeve with an insulating tape.

The clamp for indirect live wire according to the present invention, the wire tensioner using the same, and the indirect live wire method using the same are not installed with the clamp, so the hydraulic mechanism or the electric drive mechanism is quickly operated, so the weight is light, the internal structure is simple, and the wire gripping By giving the means freedom, even if the thickness of the wire is not constant, the wire can be firmly grasped, and the live wire method can be performed in a state in which the wire can be firmly gripped without damage or damage to the wire coating.

1 is a hanging mechanism for temporary wire mounting according to the prior art;
2 is a perspective view of a clamp for indirect live wire and a wire tensioner using the same according to the present invention;
Figure 3 is an exploded perspective view of Figure 2;
Figure 4 is a front view showing the use state of Figure 2;
Figure 5a is a perspective view of the clamp for indirect live wire according to the present invention viewed from the front side;
Figure 5b is a perspective view of the clamp for indirect live wire according to the present invention as viewed from the rear side;
Figure 5c is an enlarged perspective view of the push arm support guide in the indirect live wire clamp according to the present invention;
6 is a perspective view showing the lower part of the main frame in the clamp for indirect live wire according to the present invention;
7 is a rear view of an indirect live wire clamp according to the present invention;
8a and 8b are front views sequentially showing the operating sequence of the clamp for indirect live wire according to the present invention;
8c and 8d are enlarged views showing the action of the wire clamping block close guide in FIGS. 8a and 8b;
9a to 9e are exemplary views showing an indirect live wire method using a wire tensioner according to the present invention;

Specific structural or functional descriptions presented in the embodiments of the present invention are merely exemplified for the purpose of explaining embodiments according to the concept of the present invention, and embodiments according to the concept of the present invention may be implemented in various forms. In addition, it should not be construed as being limited to the embodiments described in this specification, and should be understood to include all modifications, equivalents, or substitutes included in the spirit and scope of the present invention.

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

The present invention relates to an indirect live wire clamp 30 used in a wire tensioner, a wire tensioner 20 using the same, and an indirect live wire method using the wire tensioner 20, which will be described in order below. do it with

As shown in FIGS. 3 and 5A and 5B, the clamp 30 for indirect live wire according to the present invention includes a main body 31, a rotating part, and a wire fastening block 32.

As shown in FIG. 5A , the main body 31 includes a wire mounting block 311 closely attached to the top of the electric wire T, and a main frame 312 integrally formed with the wire mounting block 311 . The wire holding block 311 is a member that directly grips the wire together with the wire fastening block 32 to be described later, and the main frame 312 is a member integrally formed with the wire holding block 311, and a rotating part to be described later. And a member that supports the wire fastening block 32.

As shown in FIG. 3 , the rotation unit includes an idle shaft 361 that idles in place and a stick connector 362 for fastening a rotor stick made of an insulating material installed at an end of the idle shaft 361 .

As shown in FIG. 3 , the idle shaft 361 is installed so that it can idle in place without changing its position even when rotated. More specifically, the idle shaft 361 is installed in the form of being inserted into the main frame 312 as shown in FIGS. 3 and 7, and the shaft rotation support nut is attached to the shaft head 3611, which is the upper end of the idle shaft 361. 363 is installed, and the idle shaft 361 is installed to be idling without being separated from the main frame 312.

In addition, as shown in the clamp on the right side of FIG. 4, the idle shaft 361 is coupled in a direction in which the stick connector 362 faces the lower part of the main frame 312, or as shown in the clamp on the left side of FIG. 4 The idle shaft 361 may be coupled to the stick connector 362 in a direction toward the top of the main frame 612 .

Therefore, the clamp for indirect live wire according to the present invention can be used for the wire (T) located above the operator as well as the wire (T) located below the operator during the operation by the live wire method at high altitude.

At this time, as the idle shaft 361 rotates by being screwed to the idle shaft 361, a lifting block 35 is provided, and the lifting block 35 is formed on the main frame 312 as shown in FIG. Since rotation is suppressed by the lifting block guide 313, when the idle shaft 361 is rotated, the variable is guided only in the longitudinal direction of the idle shaft 361 through screw coupling.

In particular, referring to FIGS. 3, 6, and 5A, the wire fastening block 32 and the lifting block 35 are hinged to each other, and the wire fastening block 32 is capable of relative rotation with respect to the lifting block 35 , The wire fastening block 32 can be varied along the longitudinal direction of the idle shaft 361 together with the lifting block 35, and the wire fastening block 32 is relative to the lifting block 35 within a certain angular range. rotation is possible

Therefore, even if the thickness of the wire is not constant, there is an effect of firmly grasping the wire. This principle is expressed in a form in which the wire (T) is dominated in a section in which the thickness of the wire (T) is changed in FIGS. 3 and 5A and 5B.

In addition, since the wire fastening block 32 can rotate relative to the lifting block 35 to some extent, when the wire fastening block 32 approaches the wire mounting block 311 and starts to tighten the wire T, the wire fastening block One side of (32) is first in close contact with the wire (T) and then the other side of the wire clamping block 32 is in close contact with the wire (T). That is, the wire fastening block 32 does not directly compress the wire T between the wire holding block 311, but one side of the wire fastening block 32 first contacts the wire T and then tightens the wire. After the other side of the block 32 is in close contact with the wire (T), the wire (T) is started to be tightened in earnest.

On the other hand, in the prior art, the angle of the two members that tighten the wire T from both sides is fixed so that the surfaces facing each other are parallel to each other, and if the wire is obliquely bitten, the edge of the member that tightens the wire presses the wire in the process of pressing the wire There is a risk of penetrating into and causing damage.

The present invention is such that the wire fastening block 32, which is a member for directly fastening the wire T, and the lifting block 35, which is a member for moving the wire fastening block 32, are manufactured to be connected to each other while being separate and independent members. problem can be solved.

However, while the wire fastening block 32 is variable, on the other hand, in the end, the wire holding block 311 and the wire fastening block 32 must be parallel to each other in order to stably grip the wire T. To this end, as shown in FIGS. 8A and 8B, the main frame 312 has the wire fastening block 32 and the wire mounting block 311 as the wire fastening block 32 approaches the wire mounting block 311. A wire clamping block close guide 3141 for guiding the wire clamping block 32 so that surfaces facing each other are parallel may be formed.

As shown in FIGS. 6 and 8A, the wire clamping block close guide 3141 is formed with surfaces that can be in close contact with the wire clamping block 32. Therefore, as shown in FIGS. 8C and 8D, the two members can be parallel to each other while the wire fastening block 32 moves toward the wire mounting block 311.

For reference, in this case, as shown in FIGS. 8C and 8D, the guide surface of the wire fastening block close guide 3141 extends upward to the top of the wire fastening block close guide 3141, and the wire fastening block auxiliary guide 317 ) can be formed.

However, in order for the wire fastening block 32 to be guided in close contact with the wire fastening block close guide 3141, a means for bringing the wire fastening block 32 into close contact with the wire fastening block close guide 3141 is required. Means for bringing the wire clamping block 32 into close contact with the wire clamping block close guide 3141 are the link arm 33 and the push arm 34, which will be described later.

The lifting block 35 and the wire fastening block 32 are not directly hinged to each other, but as shown in FIGS. 3 and 5A, the link arm 33, which is a member hinged to the lifting block 35, is a wire fastening block (32) can also be indirectly connected to each other by being provided in a hinged form.

At this time, the lifting block interlocking hinge pin 331, which is a hinge axis that hinges the lifting block 35 and the link arm 33, and the link arm interlocking hinge, which is a hinge axis that hinges the wire clamping block 32 and the link arm 33 The pins 321 are independently installed in different parts of the link arm 33, so that the wire fastening block 32 can be tilted from the horizontal angle due to the increased degree of freedom.

Here, the main frame 312 is connected to the wire fastening block 32, as shown in FIGS. 5A and 8A, and as the wire fastening block 32 approaches the wire mounting block 311, the link arm 33 has an elastic force. A push arm 34 for bringing the wire fastening block 32 into close contact with the wire fastening block adhesion guide 3141 by applying a rotational force is installed.

Referring to FIGS. 8A and 8B in order, the push arm 34 is a link that rises together with the lift block 35 when the lift block 35 lifts while the idle shaft 361 rotates, as shown in FIG. 8A . It acts to apply force to rotate the arm 33 counterclockwise.

At this time, the push arm 34 and the link arm 33 are hinged to each other due to the push arm interlocking hinge pin 332 penetrating both the push arm 34 and the link arm 33, as shown in FIG. 8A.

Here, the link arm 33 is rotated around the link arm interlocking hinge pin 321, the lifting block interlocking hinge pin 331 is installed on one side of the link arm interlocking hinge pin 321, and the push arm interlocking hinge on the other side When the pin 332 is installed and the push arm 34 rotates the link arm 33 with an elastic force, the wire fastening block 32 hinged to the lifting block interlocking hinge pin 331 is connected to the wire fastening block close guide 3141 ) It is in close contact with the wire fastening block 32 can be maintained horizontally.

More specifically, as shown in FIG. 5A, a push arm support guide 314 having a through hole larger than the outer diameter of the push arm 34 is formed in the main frame 312, and a lifting block 35 is formed in the push arm 34. As the wire fastening block 32 approaches the wire holding block 311, an elastic spring 341 that presses the link arm 33 with an elastic force is installed on the push arm 34.

At this time, protruding spring support shafts 343 are formed on the push arm 34 in both side directions of the push arm, and one end of the spring 341 is supported by the spring support shaft 343 and the other end is a push arm support guide ( 314) can be supported.

In particular, when the push arm 34 is applied to both sides of the wire tensioner 20 to be described later as shown in FIG. When it rises upward on a standard basis, that is, when it operates from the situation of FIG. 8A to the situation of FIG. 8B, the push arm 34 rises while also partially extending to the outside through the through hole formed in the push arm support guide 314. Exposed. Therefore, when both clamps 30 for indirect live wires on both sides of the stick body 10 move in the direction in which the push arms 34 approach each other, the length of the stick body 10 is fixed, so actually the push arm 34 ) Since they do not approach each other, the effect of increasing the distance between the clamps 30 for indirect live wires installed on both sides of the stick body 10 is generated.

Therefore, as the wire (T) gripped by the indirect live wire clamps (30) installed on both sides of the stick body (10) is more tightly spread, the wire (T) that can be generated when the wire (T) is obliquely mounted Damage to the coating can be further prevented, and the clamp 30 for indirect live wire can grip the electric wire T more firmly.

In addition, as shown in FIG. 6 , a stopper 315 may be formed at the bottom of the clamp 30 for the indirect live wire so that the variable range of the clamp 32 may be limited.

And, as shown in FIG. 5C, a wear-resistant special steel pin 3142, which is a rolling roller member, is installed on the inner circumferential surface of the through hole formed in the push arm support guide 314 to come into contact with the push arm 34, so that even if it is used for a long time, the push arm Wear and damage of the mechanism due to friction between the arm 34 and the inner circumferential surface of the through hole can be suppressed.

The push arm support guide 314 is formed with a push arm passage hole 3143 through which the push arm 34 can freely pass so that the push arm 34 can guide the change of the push arm 34, and the idle shaft 361 As the lifting block 35 is moved up and down due to the rotation of the push arm 34, especially the lower portion of the inner circumferential surface of the push arm passage hole 3143 may cause severe friction, resulting in rapid wear.

To prevent this phenomenon, in the indirect live wire clamp 30 according to the present invention, a space is formed on the bottom surface of the push arm passage hole 3143, and a wear-resistant special steel pin 3142 having excellent wear resistance is installed in the space, thereby , Severe wear of the push arm 34 and the push arm support guide 314 can be prevented even when repeatedly used for a long period of time.

On the other hand, as shown in FIGS. 2 and 4, the wire tensioner according to the present invention equipped with the above-described clamp 30 for indirect live wire includes the clamp 30 for the rotor stick according to the present invention described above, and the stick body (10) and a tension unit (20).

The stick body 10 is a stick member made of an insulating material that is coupled to the end of the push arm 34 protruding through the push arm passage hole 3143 formed in the push arm support guide 314, and has two different diameters. One of the sticks is configured to be inserted into or withdrawn from the other.

The tension unit 20 is installed on the stick body 10 and extends or contracts the entire length of the stick body 10 by drawing out or inserting a stick having a smaller diameter among the two sticks having different diameters. do

By being configured in this way, the tension unit 20 extends or contracts the length of the stick body in a state where the clamps 30 for indirect live wires provided on both sides of the stick body 10 firmly hold one wire together, thereby extending or contracting the length of the wire By relaxing or tightening, the indirect live wire method can be performed under optimal conditions.

That is, two clamps 30 for indirect live wire are installed one on each side of the stick body 10, so that when the two clamps 30 for indirect live wire grip the wire T together, the tension unit 20 When the length of the stick body 10 is contracted, a length margin is generated in the wire T between the two clamps 30 for indirect live wire, so that the indirect live wire work can be easily performed on the wire.

As shown in FIGS. 2 and 4, the stick body 10 is configured so that one of the two sticks having different diameters is inserted into or withdrawn from the other one, so that the total length of the stick body 10 is When stretched and inserted into each other, the entire length of the stick body 10 contracts.

However, unlike the wire tensioner according to the present invention, which is driven by hydraulic pressure in a typical heavy equipment boom, as shown in FIG. this is provided

The tension unit 20 is provided with a rotor stick connector 22 as shown in FIG. 2 so that the rotor stick 5 for driving the tool, which is made of an insulating material and has a built-in rotor, can be fastened thereto. As shown in FIG. 9c, the rotor stick 5 for tool driving connected to the rotor stick connector 22 is provided with a hook-shaped ring member at the upper end, and the rotor stick connector 22 has a head that is the hook-shaped ring member. It is formed to be fastened with, and can receive the rotational motion of the rotor stick 5 for tool driving. However, as long as the member is capable of receiving the rotational motion of the rotor stick 5 for tool driving, it is not necessarily limited to the shape of FIG. 9C.

Inside the tension unit 20, a mechanism capable of converting the rotational force of the rotor stick 5 for tool driving into a tension or contraction operation of the stick body 10 is built-in.

More specifically, although not shown inside the tension unit 20, two sticks are composed of bevel gears so that the rotational motion transmitted from the rotor stick 5 has different diameters, one of which is inserted into or pulled out of the other stick. In the main body 10, it acts as a motion source for driving the insertion or withdrawal operation.

In addition, as shown in FIG. 2, in the indirect live wire clamp 30, a rigid sealed electric wire temporary holder 40 having a hook-shaped bent part formed thereon, and a fixing means 41 for fixing the wire temporary holder 40 ,42) may be further included.

Therefore, since the bent part can be mounted on the electric wire in the live wire work, it is possible to prevent the indirect live wire clamp 30, the stick body 10, and the tension unit 20 from falling during the preparation process for the live wire work.

Of course, the wire holding block 311 for gripping the wire together with the wire clamping block 32 can also be a means for temporarily mounting the wire tensioner according to the present invention on the wire before full-scale work. However, since the main function of the wire mounting block 311 is to firmly hold the wire, the wire tensioner according to the present invention has a limit on the protruding length to perform the function of stably holding the wire T. There may be.

However, the wire temporary holder 40 is light in weight, but bulky because of its long overall length, so it can be detachable from the main frame 312 or inserted into the main frame 312 as if it is almost folded in a situation where it is required to be carried. can

The main frame 312 may be provided with a temporary holder insertion block 41 and a butterfly bolt 42 as shown in FIG. 5B so that the wire temporary holder 40 can be detached from the main frame 312. . However, if it is a means capable of attaching and detaching the temporary wire holder 40, the shape of the temporary holder insertion block 41 is not necessarily limited to the shape of FIG. Any can be adopted.

Even if the wire temporary holder 40 is not separated from the main frame 312, as shown in FIG. ) is not used, especially in the carrying and transporting situation of the wire tensioner according to the present invention, the wire temporary holder 40 is inserted into the temporary holder storage hole 316, so that the wire temporary holder 40 is compact Since it is packable, the occupied volume can be minimized.

In addition, since the wire temporary holder 40 is always prepared, loss that may occur when the wire temporary holder 40 is separated from the main frame 312, or a problem that cannot be used when immediate use is required This can be prevented, and in particular, since the space in the form of a groove is formed on the rear surface of the main frame 312, the overall weight of the clamp 30 for indirect live wire according to the present invention can be significantly reduced.

On the other hand, referring to FIGS. 9a to 9e, the indirect live wire method using the wire tensioner according to the present invention grips the wire T with two clamps 30 for indirect live wire, and attaches the wire tensioner to the wire T. The step of installing, the step of expanding and contracting the electric wire T between the two clamps 30 for indirect live wires by stretching the stick body 10 with the tension unit 20, and the electric wire stripping unit to the electric wire T ( 6) to remove the coating from the wire by a certain length and connect the bypass cable (8), and in the step of removing the coating, cut the wire (T) at a predetermined portion of the section from which the coating is removed and then cut A step of attaching temporary insulated terminal caps (not shown) to both cut ends of the electric wire T formed of, and replacing or maintaining defective equipment in the section formed by cutting the electric wire T; removing the temporary insulation terminal cap (not shown) and connecting the cut wires (T) with the straight sleeve (7) to compress the straight sleeve (7) and removing the bypass cable (8); It may consist of a step of taping the straight sleeve (7).

In particular, before the full-scale work here, that is, before the step of installing the wire tensioner according to the present invention to the wire T, as shown in FIG. 9a, the necessary equipment using the wire temporary holder 40 described above By placing the wire tensioner according to the present invention on the wire T until everything is ready, workers may not need to hold the wire tensioner.

And, as shown in FIGS. 9A and 9B, the push arms 34 on both sides hold the clamps 30 for indirect live wires at the moment when the clamps 30 for indirect live wires firmly hold the wire T on both sides, respectively, the stick body Since it moves finely in the direction away from (10), the wire (T) can be tightened simultaneously with clamping.

In addition, the maintenance work does not mean only one specific work, but although not shown, it may be a work of installing a switch nearby and then replacing a gold or insulator, replacing a transformer or a circuit breaker, or replacing some sections of old wires. (not shown)

The present invention described above is not limited by the foregoing embodiments and the accompanying drawings, and various substitutions, modifications, and changes are possible within a range that does not deviate from the technical spirit of the present invention. will be clear to those who have knowledge of

T: wire 3: rotor stick for clamp
4: Rotor stick for tension 5: Rotor stick for tool drive
6: peeling unit 7: straight sleeve
8: bypass cable 10: stick body
15: anti-rotation keyway 16: connecting arm fastening bracket
20: tension unit 21: gearbox
22: Rotor stick connector 30: Clamp for indirect live wire
31: body 32: wire fastening block
33: link arm 34: push arm
35: lifting block 36: stick connector
40: wire temporary holder 41: temporary holder insertion block
42: butterfly bolt 311: wire mounting block
312: main frame 313: lifting block guide
314: push arm support guide 315: tightening block lower stopper
316: temporary fixture storage hole 317: wire fastening block auxiliary guide
318: elevating block and link arm guide
321: link arm interlocking hinge pin 331: lifting block interlocking hinge pin
332: push arm interlocking hinge pin 341: spring
342: stick connection pin 343: spring support shaft
351: shaft hole 352: hinge pin coupling sleeve
361: idle shaft 362: stick connector
363: shaft rotation support nut 3141: wire fastening block close guide
3142: Wear-resistant special steel pin 3143: Push arm through hole
3162: temporary fixture insertion block 3611: shaft head

Claims (11)

A body composed of a wire mounting block closely attached to the top of the wire and a main frame integrally formed with the wire mounting block;
a rotating part composed of an idle shaft installed to be idling on the main frame and a stick connector for fastening a rotor stick for hot-line work installed at an end of the idle shaft;
A wire fastening block that is variable by rotation of the idle shaft and fastens wires together with the wire mounting block;
By being screwed to the idle shaft, an elevation block that is elevated as the idle shaft rotates is provided, and the elevation block is variable only in the longitudinal direction of the idle shaft while suppressing rotation due to an elevation block guide formed on the main frame. , The wire clamping block is coupled to the lifting block to be variable together with the lifting block,
The wire clamping block and the lifting block are hinged to each other, and the wire clamping block is capable of relative rotation with respect to the lifting block, so that even if the thickness of the wire is not constant, the clamp for indirect live wire can be firmly grasped. According to claim 1,
In the main frame, as the wire fastening block approaches the wire mounting block, a wire fastening block close guide is formed to guide the wire fastening block so that the surfaces of the wire fastening block and the wire mounting block facing each other are parallel. clamp for indirect live wire. According to claim 2,
The lifting block and the wire fastening block are indirectly connected to each other by providing a link arm, which is a member hinged to the lifting block, hinged to the wire fastening block,
The lifting block interlocking hinge pin, which is a hinge axis that hinges the lifting block and the link arm, and the link arm interlocking hinge pin, which is a hinge axis that hinges the wire fastening block and the link arm, are independently installed at different parts of the link arm,
Clamp for indirect live wire, characterized in that the main frame is installed with a push arm connected to the wire fastening block. According to claim 3,
The push arm and the link arm are hinged to each other due to a push arm interlocking hinge pin penetrating both the push arm and the link arm,
The link arm is rotated around the link arm interlocking hinge pin, the lifting block interlocking hinge pin is installed on one side of the link arm interlocking hinge pin, and the push arm interlocking hinge pin is installed on the other side,
When the push arm rotates the link arm with an elastic force, the wire fastening block hinged to the lifting block interlocking hinge pin is in close contact with the wire fastening block close guide to keep the wire fastening block level Indirect active line, characterized in that clamp for. According to claim 4,
The main frame is formed with a push arm support guide having a through hole larger than the outer diameter of the push arm, a spring is installed in the push arm, and spring support shafts protrude from both sides of the push arm. According to claim 5,
A wear-resistant special steel pin, which is a rolling roller member, is installed on the inner circumferential surface of the through hole formed in the push arm support guide and is in contact with the push arm, so that even when used for a long time, mechanical error due to friction between the push arm and the inner circumferential surface of the through hole Clamp for indirect live wire, characterized in that is suppressed. According to claim 1,
The idle shaft is coupled in a direction in which the stick connector is directed toward the lower portion of the main frame, or the idle shaft is coupled in a direction in which the stick connector is directed toward an upper portion of the main frame. A clamp for a rotor stick comprising any one of claims 1 to 7;
As a combination of stick members made of insulating material coupled to the end of the push arm protruding through a through hole formed in the push arm support guide, two sticks having different calibers can be inserted into or withdrawn from the other one. And the stick body;
A tension unit installed in the stick body to extend or contract the length of the stick body by drawing out or inserting one of the two sticks having different diameters;
The clamp for the rotor stick is a wire tensioner using an indirect live wire clamp in which two clamps are installed on both sides of the stick body, respectively. According to claim 8,
The tension unit is provided with a rotor stick fastener so that the rotor stick, which is made of an insulating material and has a built-in rotor, can be fastened to the side,
A wire tensioner using a clamp for indirect live wire, characterized in that a bevel gear is provided inside the tension unit, so that the rotational motion transmitted from the rotor stick is converted into a withdrawal or insertion operation of any one of the two sticks. According to claim 9,
The clamp for the rotor stick further includes a rigid sealed wire temporary holder in which a hook-shaped bent part is formed, and a fixing means for fixing the wire temporary holder,
Wire tensioner using an indirect live wire clamp, characterized in that the rotor stick clamp, stick body and tension unit are prevented from falling during the preparation process for live wire work by allowing the bent part to be mounted on the wire in live wire work. As an indirect live wire method using a wire tensioner consisting of claim 10,
installing a wire tensioner on the wire by gripping the wire with the two clamps for indirect live wire;
stretching the wire between the two rotor stick clamps by stretching the stick body with the tension unit;
removing the sheath from the wire by a predetermined length using a wire stripper and connecting a bypass cable to the wire;
cutting the wire at a predetermined portion of the section from which the coating was removed in the step of removing the coating, and then attaching temporary insulation terminal caps to both cut portions of the wire formed by the cutting;
replacing defective equipment or performing maintenance work in a section formed by cutting the electric wire;
removing the temporary insulation terminal cap, compressing the tensile sleeve by connecting the cut wire with the tensile sleeve, and removing the bypass cable;
A live wire tension bypass construction method using a wire tensioner comprising the steps of taping the tension sleeve with an insulating tape.

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