KR20220120349A - A cable tension device - Google Patents

Abstract

The present invention relates to a cable tension device. The cable tension device includes: a body comprising a fixed hollow insulation pipe formed in a longitudinal direction and a moveable insulation pipe inserted into the fixed insulation pipe and sliding so that a length of the body can be adjusted; and a pair of clamp units fixed to both end parts of the body respectively to grab both sides of a cable. The pair of clamp units adjust a length of the body to adjust a tensile force of the cable after grabbing both sides of the cable. The present invention enables safe work and improves work efficiency by using a tool for an indirect live wire.

Description

Wire Tensioner {A CABLE TENSION DEVICE}

The present invention relates to a wire tensioner and to a wire tensioner capable of working using a tool for indirect live wire.

In work such as construction/repair/inspection in the electric power field, there is a continuous demand for the abolition (abolition) of the direct live-line method and a safer indirect live-line method in order to strengthen worker safety as a social policy. The indirect live wire method was introduced to broaden field application.

On the other hand, as the level of consumer demand for electricity quality increases, uninterruptible power distribution work without blackouts is mainly implemented, but there are places where it cannot be applied depending on the site conditions. In particular, it is necessary to prepare a solution for the places where it is difficult to apply the indirect live wire and the uninterruptible construction at the same time due to the introduction of the indirect live wire method described above.

In addition, in order to reduce the resistance of electric current as much as possible, the electric wire is made of a metal material such as copper. Metal material such as copper is sensitive to thermal changes and frequently expands and contracts due to heat. It can be easily observed, and in this case, the ear canal adjustment of the wire is required.

In this way, when adjusting the two way of the electric wire or replacing the suspension insulator that supports the electric wire, conventionally, after grasping both sides of the electric wire using a puller and a cam-a-long clamp, the ratchet stick connecting between the puller and the cam-a-long clamp is moved left and right. In the work of controlling the electric wire using the puller and the cam-a-long clamp or adjusting the ratchet stick left and right, the operator must directly install and adjust the live wire rubber gloves.

In this way, when the operator directly installs the puller and cam-a-long clamp and adjusts the ratchet stick left and right, a safety accident may occur as the operator works while holding it with live rubber gloves. There was a problem in that the burden on the workers was increased, it took a long time, and the work efficiency was lowered.

In particular, there is a need for a wire tensioner using a tool for indirect live wire for the safety and convenience of workers.

The present invention has been devised in the above-mentioned background, and an object of the present invention is to provide a wire tensioner capable of adjusting the tensile force of an electric wire by installing it on an electric wire using a tool for indirect live wire without an operator being close to the electric wire.

Another object of the present invention is to provide a wire tensioner capable of preventing a contact between the cut ends during wire cutting, thereby preventing a safety accident due to contact between the cut wires during operation.

The object of the present invention is not limited thereto, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

According to the present invention, the body is composed of a hollow fixed insulation tube formed long in the longitudinal direction and a movable insulation tube that is inserted into the fixed insulation tube to slide and whose length is adjusted, respectively, fixed at both ends of the body to secure both sides of the electric wire. A wire tensioner capable of adjusting the tension of the wire by adjusting the length of the body after securing both sides of the wire with the pair of clamp units may be provided.

Here, the body may further include a control unit installed on the fixed insulating pipe to slide the movable insulating pipe.

Such a control unit is a case in which one side is installed in a fixed insulating tube, a screw bar having one side disposed inside the case and the other side screwed to the inside of the movable insulating pipe, and disposed inside the case so that the upper end is disposed on one side of the screw bar and It is connected and may include an operating member for rotating the screw bar.

In this case, the operating member may include an operating gear at an end connected to the screw bar, and the screw bar may include a driven gear engaged with the operating gear at one end to receive the rotational force of the operating member.

Here, the movable insulating tube protrudes on one side of the outer circumferential surface and has a guide key elongated in the longitudinal direction, and the fixed insulating tube has a key insertion groove formed by being depressed in the longitudinal direction so that the guide key is inserted on one side of the inner circumferential surface, When the screw bar is rotated, the movable insulating tube may be slid in the longitudinal direction inside the fixed insulating tube.

In addition, the operation member may include a tool insertion ring to which the tool for indirect live wire is connected to the lower end.

In addition, the clamp unit has one end fixed to the end of the body and a clamp body having a clamp part having a 'C' shape in cross section to clamp the electric wire to the other end, and the electric wire moved inside the clamp part and inserted into the clamp part. It may include a pressing block for fixing by pressing.

Here, the clamp part includes a first support part extending in the longitudinal direction from the other end of the clamp body, a second support part protruding from the upper end of the first support part and seated on the electric wire, and a second support part at the lower end of the first support part. It is formed to protrude to face and may include a third support part on which the pressing block is movably installed.

In addition, the clamp unit further includes a screw member connected to a connecting pin having an upper end protruding from the lower surface of the pressing block, and screwed to a screw hole formed through the third support to move the pressing block according to rotation. can

Such a screw member may include a tool connecting ring to which a tool for indirect live wire is connected to a lower end thereof.

In addition, the pressing block is formed to protrude from the lower side and is inserted into the guide hole formed through the third support portion may include a guide pin to prevent rotation of the pressing block.

And the clamp unit may further include a locking protrusion formed to protrude downward from the protruding end of the second support unit so as to be stably seated on the electric wire.

In addition, the wire tensioner may further include a pair of support units respectively installed on the body to support two places of the wire.

The pair of support units each support the cut portion of the electric wire to prevent contact between the cut ends of the electric wire after cutting the electric wire, and any one of the support units may be fixed after being rotated with respect to the body.

In addition, the support unit has an insertion hole through the body formed at the lower end thereof, and a support body having a wire insertion portion formed by being recessed from one side so that the wire is inserted at the upper end, a support body rotatably installed on one side of the support body, and the electric wire It may include a cover for supporting the wire inserted into the insertion portion.

And the support body is formed to be recessed from the inner surface of the wire insertion portion may include a wire seating portion on which the wire is seated.

In addition, the support body may be provided with a hinge pin that is provided to protrude from one side and is inserted into the hinge coupling hole of the cover and becomes a hinge shaft on which the cover rotates.

For the rotation operation of the cover, the support body is provided on one side so that the guide pin protrudes at a position spaced apart from the hinge pin, and the cover is formed at a position spaced apart from the hinge coupling hole and has a circular arc shape centered on the central axis of the hinge pin. It is formed with a guide pin may be provided with a guide hole to slide and move.

Wire tensioner, characterized in that the cover is provided with an operating pin that can be gripped by a tool for indirect live wire on the surface opposite to the surface facing the support body.

In addition, the support unit is screwed into a fastening hole formed by passing one end from the lower end of the support body to the insertion hole to fix the support body to the body, and a tool attachment ring to which a tool for indirect live wire is connected to the other end. It may further include a fixing member.

According to the present invention as described above, since work using a tool for indirect live wire is possible, the operator can easily install the wire tensioner on the wire without being close to the wire, and there is an effect that the tension of the wire can be easily adjusted.

In addition, since it is possible to prevent the contact between the cut ends during the wire cutting, there is an effect that can prevent a safety accident due to the contact between the cut wires during operation.

In addition, when adjusting the tensile force of the electric wire, it can be adjusted manually or electrically depending on the indirect live wire tool that operates the electric wire tensioner, thereby making work easier and improving work efficiency.

1 is a front view of a wire tensioner according to an embodiment of the present invention.
2 is a front view of a clamp unit of a wire tensioner according to an embodiment of the present invention.
3 is a side view of a clamp unit of a wire tensioner according to an embodiment of the present invention.
4 is a side view of a support unit of a wire tensioner according to an embodiment of the present invention.
5 is a front view showing the operation of the support unit of the wire tensioner according to an embodiment of the present invention.
6 is a front view showing the internal structure of the body of the wire tensioner according to the embodiment of the present invention.
7 is a view showing a process of cutting the wire after installing the wire tensioner on the wire according to the embodiment of the present invention.
8 is a view showing a process of changing the position of one end of the cut both ends of the electric wire using the electric wire tensioner according to an embodiment of the present invention.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, it should be noted that the same components are given the same reference numerals as much as possible even though they are indicated in different drawings. In addition, in describing the present invention, when it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a front view of a wire tensioner according to an embodiment of the present invention, FIG. 2 is a front view of a clamp unit of a wire tensioner according to an embodiment of the present invention, and FIG. 3 is a wire tensioner according to an embodiment of the present invention. is a side view of the clamp unit of the, Figure 4 is a side view of the support unit of the wire tensioner according to the embodiment of the present invention, Figure 5 is a front view showing the operation of the support unit of the wire tensioner according to the embodiment of the present invention, Figure 6 is a front view showing the internal structure of the body of the wire tensioner according to the embodiment of the present invention, Figure 7 is a view showing the process of cutting the wire after installing the wire tensioner according to the embodiment of the present invention on the wire. , FIG. 8 is a view showing a process of changing the position of one end of the cut both ends of the electric wire using the electric wire tensioner according to an embodiment of the present invention.

As shown in these drawings, the wire tensioner 10 according to the embodiment of the present invention is inserted into the hollow fixed insulating tube 110 and the fixed insulating tube 110 formed long in the longitudinal direction and slides. The body 100, which is composed of an insulating tube 120 and whose length is adjusted, includes a pair of clamp units 200 fixed to both ends of the body 100 to secure both sides of the electric wire, and a pair of clamp units 200 ) to adjust the tensile force of the electric wire by controlling the length of the body 100 after grasping both sides of the electric wire.

The wire tensioner 10 is used to adjust the ear canal of the wire, and is used to cut and connect the wire if necessary.

Such a wire tensioner 10 is composed of a pair of clamp units 200 that hold the wire, and a body 100 that supports the pair of clamp units 200 and adjusts the distance between the pair of clamp units 200 . and adjust the length of the body 100 to adjust the tensile force of the electric wire.

The body 100 is composed of a fixed insulating pipe 110 and a movable insulating pipe 120, the length of which is controlled, and is formed to be elongated in the longitudinal direction.

The fixed insulating tube 110 is provided in a hollow shape elongated in the longitudinal direction, and the clamp unit 200 is coupled to one end and the movable insulating pipe 120 is connected to the other end.

The movable insulating tube 120 is provided in a hollow shape elongated in the longitudinal direction, a screw fastening hole 122 is formed therein, and one end is inserted into the fixed insulating tube 110 to adjust with the fixed insulating tube 110 . It is connected via the unit 130 and slides along the longitudinal direction, and the clamp unit 200 is coupled to the other end.

The fixed insulating pipe 110 and the movable insulating pipe 120 are made of a light-weight and insulating material to improve work efficiency.

A pair of clamp units 200 are respectively fixed to both ends of the body 100 to seize both sides of the electric wire, and are provided as a wedge-shaped clamp for example and automatically seize the electric wire when the electric wire is inserted, and when a force acts in the electric wire tension direction The gripping force is increased to prevent loosening of the electric wire and may be provided to stably hold the electric wire. Here, by pulling the open ring connected to the block for grasping the electric wire in a state in which the electric wire is inserted, the gripping force may be released.

Referring to FIGS. 2 and 3 , the clamp unit 200 is specifically described. The clamp unit 200 includes a clamp body 210 and a pressing block 230 .

The clamp body 210 has one end fixed to the end of the body 100 , clamping the electric wire at the other end, and a clamp unit 220 having a 'C'-shaped cross-section at the other end.

The clamp body 210 is inclined from one end to the other end so that the electric wire and the body 100 are spaced apart from each other by a predetermined distance, and as shown in the figure, it may be formed in an inclined shape that protrudes toward the electric wire toward the end.

The clamp unit 220 is provided to secure the electric wire after the electric wire tensioner 10 is seated on the electric wire, and applies a clamping force to the electric wire together with the pressing block 230 .

The pressing block 230 is provided in the form of a block to press and fix the electric wire, and is inserted into the clamp unit 220 to move.

This pressing block 230 applies a gripping force to the electric wire together with the second support 222, and the lower surface of the second support 222 and the upper surface of the pressing block 230 are provided in a serration shape to improve gripping force. can In addition, the lower surface of the second support part 222 and the upper surface of the pressing block 230 are formed such that the central portion on which the electric wire is seated in the longitudinal direction is depressed to widen the contact area with the electric wire and may be provided to prevent separation of the electric wire. have.

And, the pressing block 230 is provided with a connecting pin 231 formed to protrude from the lower side in order to be connected to the screw member 240 to be described later.

First, the clamp part 220 is composed of a first support part 221 , a second support part 222 , and a third support part 223 to form a 'C' shape in cross section, and an electric wire and a pressing block 230 are inserted. secure space to be

The first support part 221 is formed to extend in the longitudinal direction from the other end of the clamp body 210 .

The second support part 222 is formed to protrude from the upper end of the first support part 221 , is seated on the electric wire, and applies a gripping force to the electric wire together with the pressing block 230 .

The third support 223 is formed to protrude from the lower end of the first support 221 to face the second support 222 , and the pressing block 230 is movably installed via the screw member 240 . .

And, the clamp unit 220 further includes a locking protrusion 226 formed to protrude downward from the protruding end of the second support part 222, so that when the second support part 222 is seated on the electric wire, the electric wire is connected to the second It is prevented from being separated toward the protruding end of the support part 222 . That is, the locking protrusion 226 is provided so that the clamp unit 220 is supported by the wire and maintains a stable seating state.

The screw member 240 has a screw thread formed on its outer circumferential surface and is screwed into the screw hole 224 formed through the third support part 223 and moves in the vertical direction along the screw thread during rotation, the upper end of the pressing block 230 . It is connected to the connection pin 231 .

As such, the screw member 240 is screwed to the third support portion 223 to vertically move the pressing block 230 on which the connecting pin 231 is formed when rotating. At this time, when the screw member 240 is rotated, the pressing block 230 does not rotate and is provided to move only in the vertical direction along the screw member 240 .

The screw member 240 is provided with a tool connecting ring 241 to which a tool for indirect live wire is connected at the lower end thereof, and the operator connects the tool for indirect live wire to the tool connecting ring 241 and then connects the tool connecting ring 241. By rotating it, the clamp unit 200 can be easily manipulated to grab the electric wire.

At this time, the pressing block 230 is formed to protrude from the lower side and is inserted into the position guide hole 225 formed through the third support part 223 , the guide rod 232 for preventing the rotation of the pressing block 230 . be prepared

Through such a guide rod 232, the pressing block 230 does not rotate and moves only in the vertical direction, and the movement is guided.

In addition, the wire tensioner 10 further includes a pair of support units 300 for supporting the cut end of the wire when cutting the wire. Hereinafter, the support unit 300 will be described in detail with reference to FIGS. 4 and 5 .

The support unit 300 is provided as a pair to support the cut end of the electric wire and is installed in the body 100, respectively, and is preferably installed to support both sides of the part to be cut of the electric wire.

Accordingly, one of the pair of support units 300 is preferably installed in the fixed insulating pipe 110 and the other is preferably installed in the movable insulating pipe 120, and is preferably installed so that the position can be changed, respectively.

In particular, the pair of support units 300 are provided to prevent contact between the cut ends of the wires after cutting the wires, each supporting the cut portions of the wires, and any one of the pair of support units 300 It is fixed after rotation with respect to the body 100 so that the cut part of the electric wire is not located on the same line. That is, the support unit 300 is provided to be fixed after being rotated with respect to the body 100 so that the cut ends of the electric wires are shifted from each other.

The support unit 300 is configured to include a support body 310 fixed to the body 100 and a cover 320 for supporting the electric wire inserted into the support body 310 .

The support body 310 is provided with an insertion hole 311 through which the body 100 passes at the lower end, and a wire insertion part 312 formed by being depressed from one side so that the electric wire is inserted at the upper end.

In addition, the support body 310 is formed through the lower end toward the insertion hole 311, and is provided with a fastening hole 316 to which the fixing member 330 is fastened.

Here, the fixing member 330 is configured to fix the support body 310 to the body 100 , and one end is screwed to the fastening hole 316 to protrude toward the insertion hole 311 and to the body 100 . A force is applied to fix the support body 310 .

In addition, the fixing member 330 is provided with a tool attachment ring 331 to which a tool for indirect live wire is connected to the other end so that an operator can change the position of the support body 310 using the tool for indirect live wire, or the support body ( 310) is rotated and then fixed.

The wire insertion part 312 forms a space into which the wire is inserted, and is formed to be recessed into the surface on which the wire of the inner surface is seated, so that the wire seating part 313 on which the wire is seated is provided.

The cover 320 is rotatably installed on one side of the support body 310 via a hinge pin 314 to support the wire inserted into the wire insertion unit 312 .

More precisely, the cover 320 is installed on the support body 310 via a hinge pin 314 and a guide pin 315. The guide pin 315 slides around the hinge axis of the hinge pin 314 and is rotatable. is installed

The support body 310 is provided so that the hinge pin 314 and the guide pin 315 protrude from one side, respectively, are provided at positions spaced apart from each other by a predetermined distance.

The cover 320 has a hinge coupling hole 321 into which the hinge pin 314 is inserted, and a guide hole 322 into which the guide pin 315 is inserted.

However, the hinge coupling hole 321 is formed in a shape corresponding to the hinge pin 314 so that the cover 320 rotates about the hinge axis of the hinge pin 314 , and the guide hole 322 is the hinge pin 314 . It is formed in a circular arc shape centered on the central axis of the guide pin 315 is inserted and is formed to be movable by sliding.

And the width of the guide hole 322 is formed to correspond to the diameter of the guide pin 315. When the operator moves the guide pin 315 from the inside of the guide hole 322, the cover 320 maintains the rotated state. do.

And, the cover 320 is provided with an operation pin 323 that can be gripped by the indirect live wire tool on the opposite side of the surface facing the support body 310, so that the operator can easily rotate the cover 320. have.

When the operating structure of the support body 310 and the cover 320 is described with reference to FIG. 5 , in the left view of FIG. 5 , the cover 320 is disposed in the longitudinal direction, and the wire insertion part 312 of the support body 310 is shown. ) shows the open state.

The guide pin 315 is located at one end of the guide hole 322 and the cover 320 is arranged side by side with the electric wire, and in this state, the electric wire is positioned inside through the open side of the electric wire insertion part 312 . .

And, as the guide pin 315 moves to the opposite end of the guide hole 322 as shown in the right drawing of FIG. 5 , the cover 320 rotates about the hinge axis to cover the open side of the wire insertion part 312 . are placed

Accordingly, the support unit 300 supports the electric wire, prevents movement by supporting the cut end when the electric wire is cut, and prevents contact between the cut ends by moving one of the cut ends after the electric wire is cut.

Hereinafter, an adjustment unit 130 for adjusting the length of the body 100 will be described with reference to FIG. 6 .

The control unit 130 is installed in the fixed insulating pipe 110 to slide the movable insulating pipe 120 , and includes a case 131 , a screw bar 135 , and an operation member 132 .

The case 131 is fixed between the fixed insulating tube 110 and the clamp unit 200 , or is installed on the fixed insulating tube 110 , and the inside is an empty space in which the screw bar 135 and the operating member 132 are installed. provided in space.

To be more precise, the case 131 has a first opening opening at one side to which the fixed insulating tube 110 is fixed, and a second opening opening in a downward direction perpendicular to the longitudinal direction in which the fixed insulating tube 110 is disposed. will be prepared

And the screw bar 135 is disposed through the first opening in the inside of the case 131 and the operating member 132 is disposed through the second opening, and the screw bar 135 and the operating member 132 are mutually disposed inside the case 131 . rotatably connected.

One side of the screw bar 135 is inserted and disposed inside through the first opening of the case 131 , and a screw thread is formed on the outer circumferential surface so that the other side is screwed into the screw fastening hole 122 of the movable insulating tube 120 . .

The operation member 132 has an upper end inserted therein through the second opening of the case 131 , is connected to one side of the screw bar 135 , and rotates the screw bar 135 .

The operation member 132 has an operation gear 134 at the upper end connected to the screw bar 135 and a tool insertion ring 133 to which a tool for indirect live wire is connected at the lower end, so that the operator can indirectly A rotational force is provided to the operation member 132 using a tool for live wire.

In this case, the operator can manually provide the rotational force using a tool for indirect live wire, or provide the rotational force electrically using a tool for electric indirect live wire, so that the work is easy and the load burden on the operator is shared.

In addition, the screw bar 135 is provided with a driven gear 136 meshed with the operation gear 134 at one end to receive the rotational force of the operation member 132 .

And as an example, the operating gear 134 and the driven gear 136 may be provided as bevel gears that mesh with each other, but as long as the operating gear 134 rotates the screw bar 135 by the rotational force of the operating member 132 and The driven gear 136 may be provided as a different type of gear, but is not limited thereto.

At this time, a guide key 121 and a key insertion groove 111 are provided in the movable insulating tube 120 and the fixed hinged pipe, respectively, so that between the movable insulating pipe 120 and the fixed hinged pipe does not rotate, and the screw bar 135 According to the rotation, the moving jigsaw pipe moves only in the longitudinal direction inside the fixed jigyeon pipe.

The movable insulating tube 120 is formed to protrude from one side of the outer circumferential surface and has a guide key 121 formed long in the longitudinal direction. The guide key 121 may be formed to have an angled cross-section in cross-section, may be provided in a rectangular cross-sectional form, may be provided in a block form on the movable insulating tube 120 , or may be formed to be elongated in the longitudinal direction.

The fixed insulating tube 110 has a key insertion groove 111 formed by being depressed in the longitudinal direction so that the guide key 121 is inserted on one side of the inner circumferential surface. It is preferable that the key insertion groove 111 has a cross section corresponding to the guide key 121 .

Accordingly, the movable insulating tube 120 slides only in the longitudinal direction while the guide key 121 is constrained by the key insertion groove 111 inside the fixed insulating tube 110 when the screw bar 135 rotates.

Hereinafter, a method used after installing the wire tensioner 10 will be described with reference to FIG. 7 .

First, the second support part 222 of the clamp unit 200 of the wire tensioner 10 or the wire seating part 313 of the support unit 300 is mounted on the wire. At this time, the cover 320 of the support unit 300 is installed in an open state.

Then, while the second support 222 of the pair of clamp units 200 is mounted on the electric wire, the tool for indirect live wire is connected to the tool insertion ring 133 to move the pressing block 230 to the electric wire side, and the holding force is applied to the electric wire. provides

When the pair of clamp units 200 seize both sides of the electric wire, the electric wire is disposed in the electric wire insertion portion 312 of the support unit 300 .

Then, the operator rotates the cover 320 through the operation pin 323 using a tool for indirect live wire, and the cover 320 rotates while the guide pin 315 moves along the guide hole 322 to rotate the wire insertion part. Covers the opened side of the 312. As shown in FIG. 7 (a), the wire tensioner 10 is installed on the wire.

Then, the operator cuts the electric wire as needed, and a pair of support units 300 are installed to support both sides of the cut portion.

Before cutting the electric wire, the operator connects the tool for indirect live wire to the tool insertion ring 133 of the control unit 130 to rotate the operation member 132, and the screw bar 135 rotates according to the operation member 132. And, as the movable insulating tube 120 moves in the longitudinal direction, the length of the body 100 is increased, and a tensile force is applied to the electric wire.

When a portion of the electric wire to which a tensile force is applied is cut, as shown in FIG.

However, even if the cut end of the electric wire is spaced apart, there is a fear that a safety accident may occur in which the cut end becomes instantaneously close to the cut end due to the surrounding environment or the operator’s mistake,

As shown in (c) of Figure 7, by using the support unit 300 to perform the operation of changing the position of any one of the cut end of the electric wire to cross the other one.

More specifically, with reference to FIG. 8, (a) of FIG. 8 is a support unit 300 supporting the cut end of the electric wire in a state in which the position is not changed, and (b) of FIG. 8 is the position changed. It is a support unit 300 that supports the cut end of the electric wire in a state where it is made.

As shown in (b) of FIG. 8 , the operator connects the tool for indirect live wire to the tool attachment ring 331 of the support unit 300 , and then partially unfastens the fixing member 330 from the fastening hole 316 to remove the fixing member. (330) removes the pressing force for supporting the body 100, and rotates the support unit 300 at a predetermined angle. Then, the cut one end of the wire also rotates with the non-rotated end and is arranged so as to be staggered. That is, since the cut ends of the electric wires are not located on the same line, even if the cut ends of the electric wires come close to each other, contact with each other can be prevented.

As such, since the support unit 300 can be fixed after being rotated with respect to the body 100, it is possible to completely prevent contact between the cut ends when the electric wire is cut.

According to the embodiments of the present invention having such a shape and structure, a tool insertion ring, a tool connecting ring, a tool attachment ring, and an operation pin are provided so that work using a tool for indirect live wire is possible, so that the operator does not come close to the wire and pulls the wire It has the effect of being able to easily install the device on the wire and easily adjust the tension of the wire.

In addition, since it is possible to prevent the contact between the cut ends during the wire cutting, there is an effect that can prevent a safety accident due to the contact between the cut wires during operation.

In addition, when adjusting the tensile force of the electric wire, it can be adjusted manually or electrically depending on the indirect live wire tool that operates the electric wire tensioner, thereby making work easier and improving work efficiency.

In the above, even though all the components constituting the embodiment of the present invention are described as being combined or operating in combination, the present invention is not necessarily limited to this embodiment. That is, within the scope of the object of the present invention, all the components may operate by selectively combining one or more.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

10: wire tensioner 20: wire
100: body 110: fixed insulation tube
111: key insertion groove 120: moving insulation tube
121: guide key 122: screw fastening groove
130: control unit 131: case
132: operation member 133: tool insertion ring
134: actuation gear 135: screw bar
136: driven gear 200: clamp unit
210: clamp body 220: clamp portion
221: first support 222: second support
223: third support 224: screw hole
225: position guide hole 226: locking jaw
230: pressure block 231: connection pin
232: guide rod 240: screw member
241: tool connecting ring 300: support unit
310: support body 311: insertion hole
312: wire insertion portion 313: wire seating portion
314: hinge pin 315: guide pin
316: fastening hole 320: cover
321: hinge coupling hole 322: guide hole
323: operation pin 330: fixing member
331: tool attachment ring

Claims (20)

a body, the length of which is adjusted, comprising: a hollow fixed insulating tube formed elongated in the longitudinal direction and a movable insulating tube inserted into the fixed insulating tube to slide and move; and
A pair of clamp units each fixed to both ends of the body to secure both sides of the electric wire;
An electric wire tensioner, characterized in that after grasping both sides of the electric wire with the pair of clamp units, the length of the body is adjusted to adjust the tensile force of the electric wire.
The method of claim 1,
The body is
The wire tensioner further comprising; a control unit installed on the fixed insulating pipe to slide the movable insulating pipe.
3. The method of claim 2,
The control unit is
a case in which one side is installed in the fixed insulating tube;
a screw bar having one side disposed inside the case and the other side screwed to the inside of the movable insulating tube; and
an operating member disposed inside the case, the upper end being connected to one side of the screw bar, and rotating the screw bar;
Wire tensioner comprising a.
4. The method of claim 3,
The operating member has an operating gear at an end connected to the screw bar,
The screw bar is a wire tensioner, characterized in that provided with a driven gear meshed with the actuating gear at one end to receive the rotational force of the actuating member.
4. The method of claim 3,
The movable insulating tube is formed to protrude from one side of the outer circumferential surface and has a guide key formed long in the longitudinal direction,
The fixed insulating tube is provided with a key insertion groove formed by being depressed in the longitudinal direction so that the guide key is inserted on one side of the inner circumferential surface,
Wire tensioner, characterized in that when the screw bar is rotated, the movable insulating tube slides in the longitudinal direction inside the fixed insulating tube.
4. The method of claim 3,
The operating member is a wire tensioner, characterized in that provided with a tool insertion ring to which the tool for indirect live wire is connected to the lower end.
The method of claim 1,
The clamp unit is
a clamp body having one end fixed to the end of the body and having a clamp portion having a 'C' shape in cross section to clamp the electric wire at the other end; and
a pressing block which moves inside the clamp unit and presses and fixes the electric wire inserted into the clamp unit;
Wire tensioner comprising a.
8. The method of claim 7,
The clamp unit,
a first support portion extending in the longitudinal direction from the other end of the clamp body;
a second support portion protruding from an upper end of the first support portion and seated on the electric wire; and
a third support part protruding from a lower end of the first support part to face the second support part, and on which the pressing block is movably installed;
Wire tensioner comprising a.
9. The method of claim 8,
The clamp unit is
a screw member having an upper end connected to a connecting pin protruding from the lower surface of the pressing block and screwed into a screw hole formed through the third support to move the pressing block according to rotation;
Wire tensioner further comprising a.
10. The method of claim 9,
The screw member is a wire tensioner, characterized in that it has a tool connecting ring to which the tool for indirect live wire is connected to the lower end.
10. The method of claim 9,
The pressure block is formed to protrude from the lower side and is inserted into the guide hole formed through the third support portion, the wire tensioner characterized in that it is provided with a guide pin to prevent rotation of the pressure block.
10. The method of claim 9,
The pressure block is formed to protrude from the lower side and is inserted into the guide hole formed through the third support portion, the wire tensioner characterized in that it is provided with a guide pin to prevent rotation of the pressure block.
The method of claim 1,
a pair of support units respectively installed on the body to support two places of the electric wire;
Wire tensioner further comprising a.
14. The method of claim 13,
In order to prevent contact between the cut ends of the electric wire after cutting the electric wire, the pair of support units each support the cut part of the electric wire and one of them is rotated with respect to the body and then fixed wire tensioner with
14. The method of claim 13,
The support unit is
a support body having an insertion hole formed at a lower end through which the body passes, and a wire insertion unit recessed from one side so that the electric wire is inserted at an upper end thereof; and
a cover rotatably installed on one side of the support body to support the wire inserted into the wire insertion part;
Wire tensioner comprising a.
16. The method of claim 15,
The support body is formed to be recessed from the inner surface of the wire insertion part, the wire tensioner characterized in that it has a wire seating portion on which the wire is seated.
16. The method of claim 15,
The support body is provided so as to protrude from one side and is inserted into the hinge coupling hole of the cover, the wire tensioner characterized in that it is provided with a hinge pin that serves as a hinge axis for rotating the cover.
18. The method of claim 17,
The support body is provided on one side so that a guide pin protrudes at a position spaced apart from the hinge pin,
The cover is formed at a position spaced apart from the hinge coupling hole, and is formed in an arc shape centered on the central axis of the hinge pin, and a guide hole is provided through which the guide pin is inserted to slide.
19. The method of claim 18,
The cover is a wire tensioner, characterized in that provided with an operating pin that can be gripped by a tool for indirect live wire on a surface opposite to the surface facing the support body.
16. The method of claim 15,
The support unit is
One end is screwed into a fastening hole formed by penetrating from the lower end of the support body toward the insertion hole to fix the support body to the body, and the other end is provided with a tool attachment ring to which a tool for indirect live wire is connected. absence;
Wire tensioner further comprising a.

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