KR20230120205A - Multi-pulling system and cable laying method using the same - Google Patents

Abstract

The present invention relates to a multi-pulling system and a cable laying method using the same, and in particular, the multi-pulling system includes a cable supply device for supplying a cable wound around a drum; A cable guide device for guiding the cable into a manhole and an underground power outlet through a caterpillar installed in front of the cable supply device and pipe rollers and guide rollers installed in the front and rear of the caterpillar; A multi-pulling machine installed on the inner side of the underground power outlet to pressurize and hold the cable supplied into the underground power outlet through the manhole or release the pressurized state to descend and discharge the cable; A cable hanger installed at a certain distance from the lower side of the multi-pulling machine and laying the cable descended and discharged from the multi-pulling machine on the upper surface, so that workers can omit the process of lifting and moving the cable It has the effect of reducing the intensity of labor and reducing the risk of safety accidents.

Description

Multi-pulling system and cable laying method using the same

The present invention relates to a multi-pulling system and a cable laying method using the same, and in particular, a cable or a circular pipe entering an underground power outlet from the ground is quickly and easily installed on the upper surface of a cable hanger installed inside an underground power outlet from the beginning. It relates to a multi-pulling system that can be laid and a cable laying method using the same.

Cables are supplied to the inside of the underground power outlet by a pulling machine installed inside the underground power outlet, and inside the underground power outlet, workers lift the cables supplied by the pulling machine and place them on the upper surface of a number of cable hangers installed on the inner wall of the underground power outlet. Settle and spread.

The pulling machine used at this time is installed in the center of the floor inside the underground power outlet at regular intervals, and the endless tracks installed to face each other from both sides rotate, rubbing both surfaces of the cable and pushing it into the underground power outlet to supply.

When the cable is supplied inside the underground power tunnel in this way, workers lift the cable between the caterpillars of the pulling machine, that is, in the center of the bottom of the underground power tunnel, move it to the side of the underground power tunnel, and then reach the installation height of the cable hanger. The cable must be lifted and seated on the top of the cable hanger.

However, in performing these tasks, there is a problem in that the pulling machine and cables installed in the center of the floor of the underground power outlet not only greatly interfere with the movement of workers, but also increase the risk of safety accidents for workers.

In addition, there is a high risk of causing damage to the cable by falling or rubbing against other devices in the underground power outlet when workers move while carrying the cable, and there is a problem of greatly increasing the labor intensity of workers.

Registered Patent 10-0923919

The present invention has been made to solve the above problems of the prior art, and the cable or circular pipe entering the underground power outlet is placed on the bottom of the underground power outlet and then lifted again without placing it on the upper surface of the cable hanger. A multi-pulling system that can reduce the labor intensity of workers and reduce the risk of safety accidents by omitting the process of lifting and moving the cable by placing it on the upper surface of the cable hanger from the beginning when entering the sphere, and using it Its purpose is to provide a cable laying method.

A multi-pulling system according to the present invention for solving the above problems includes a cable supply device for supplying a cable wound on a drum; A cable guide device for guiding the cable into a manhole and an underground power outlet through a caterpillar installed in front of the cable supply device and pipe rollers and guide rollers installed in the front and rear of the caterpillar; A multi-pulling machine installed on the inner side of the underground power outlet to pressurize and hold the cable supplied into the underground power outlet through the manhole or release the pressurized state to descend and discharge the cable; It is configured to include; a cable hanger installed at a certain distance from the lower side of the multi-pulling machine and laying the cables descending and discharged from the multi-pulling machine on the upper surface.

Here, the cable supply device includes a drum stand installed on the ground; a drum rotatably installed on the drum stand and around which a cable is wound; drum rollers respectively installed on the front and rear surfaces of the drum stand;

The cable guide device includes a pipe structure formed by assembling a plurality of pipes; a pipe roller rotatably installed on the pipe structure to support the cable supplied from the cable supply device; A caterpillar installed in the pipe structure and guiding the cable supported and supplied by the pipe roller toward the manhole at a constant speed; A guide roller rotatably installed in the pipe structure to guide the cable guided by the caterpillar to the inside of the corrugated pipe provided at the entrance of the manhole.

In addition, the multi-pulling machine includes a housing formed with a mounting groove and a slide groove; a fixed motor installed in the mounting groove of the housing and composed of a fixed motor roller protruding downward from the housing; a slider slidably installed in the slide groove of the housing; a pressure motor seated inside the slider, sliding along with the slider, and providing rotational force to a pressure motor roller protruding downward from the housing; It is rotatably installed in the housing and connected to the slider, and when rotated in one direction, the pressure motor is brought closer to the fixed motor to pressurize and transfer the cable between the fixed motor roller and the pressure motor roller, and rotated in the other direction It is configured to include; a rotation handle for laying the cable on the upper surface of the cable hanger by discharging the cable between the fixed motor roller and the pressure motor roller by descending and discharging the cable between the fixed motor roller and the pressure motor roller when the pressing motor moves away from the fixed motor.

Here, the rotary handle is provided with a spiral rod having an end coupled to a side surface of the slider, and when the rotary handle is rotated in one direction and the other direction, the spiral rod moves in and out of the housing and slides the slider inside the slide groove.

And, further comprising a fixing bar connecting the housing and the cable hanger, wherein the fixing bar includes a vertical spiral rod having an upper end connected to a bottom surface of the housing; a plate rotatably installed at the lower end of the vertical spiral rod; It consists of a bracket provided on the bottom surface of the plate and bolted to the end of the cable hanger.

In addition, a chain is provided on both sides of the housing, one end of which is fixed to the side of the underground power outlet, and a turnbuckle is provided on the chain.

On the other hand, the cable laying method using the multi-pulling system according to the present invention includes a first step of connecting the cable wound around the drum of the cable supply device to the caterpillar of the cable guide device; A second step of pushing the cable into the corrugated pipe provided at the entrance of the manhole at a constant speed by operating the caterpillar; The rotating handle of the multi-pulling machine installed on the side of the underground power outlet is rotated in one direction to move the pressing motor of the multi-pulling machine toward the fixed motor, thereby fixing the cable supplied into the underground power outlet through the manhole after passing through the corrugated pipe. a third step of applying pressure with the fixed motor roller of the motor and the pressing motor roller of the pressure motor; By operating the fixed motor and the pressure motor to rotate the fixed motor roller and the pressure motor roller pressurizing the cable, the fixed motor roller and the pressure motor roller of the plurality of multi-pulling machines spaced apart installed inside the underground power outlet pull the cable. A fourth step of pressurizing; By rotating the rotary handle in the other direction to move the pressure motor in the opposite direction of the fixed motor, the fixed motor roller and the pressure motor roller are moved apart, and the cable being pressed by the fixed motor roller and the pressure motor roller is moved to the multi A fifth step of dropping and discharging on the upper surface of a cable hanger installed at a certain distance from the lower side of the pulling machine; It is configured to include; a sixth step of bending the cable laid on the upper surface of the cable hanger in the vertical and horizontal directions as much as desired.

Here, a guide roller for supporting and guiding the cable is installed between the plurality of multi-pulling machines spaced apart on the inner surface of the underground power outlet, and when the cable is dropped and discharged from the multi-pulling machine to the upper surface of the cable hanger, the guide roller also discharge down.

The multi-pulling system of the present invention configured as described above and the cable laying method using the same enter the inside of an underground power outlet, lift a cable or circular pipe placed in the center of the floor, move it to the side of an underground power outlet, and lift it up to the upper surface of the cable hanger. Since the process of raising and settling is omitted, there is an advantage in simplifying the cable laying work.

In addition, since the multi-pulling machine that grips or discharges the cable is installed on the inner side of the underground power conduit, there is an advantage that the movement or work is not hindered by the multi-pulling machine or cable when workers work inside the underground conduit. there is.

In addition, since the cable can be laid on the upper surface of the cable hanger only by turning the rotating handle of the multi-pulling machine, the cable laying work is very easy, and the labor intensity of the operator can be reduced to reduce the burden on the operator.

In addition, by connecting the cable hanger and the housing with a fixing bar, there is an advantage in preventing the housing from shaking up and down due to vibration generated when the cable is laid.

1 is a diagram showing a multi-pooling system according to the present invention.
Figures 2a and 2b is a diagram showing how to lay a cable using a multi-pulling machine according to the present invention.
Figure 3 is a perspective view showing a multi-pulling machine of the multi-pulling system.
Figure 4 is a top view of the multi-pulling machine shown in Figure 3;
Figure 5 is an exploded perspective view of the multi-pulling machine shown in Figure 3;
Figure 6 is a view showing the relationship between the pressing motor, the slider and the housing of the multi-pulling machine shown in FIG.
Figures 7a and 7b is a diagram showing a state in which the pressing motor of the multi-pulling machine shown in Figure 3 slides in the housing.

Hereinafter, an embodiment of a multi-pulling system and a cable laying method using the multi-pulling system according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a diagram showing a multi-pulling system according to the present invention, and FIGS. 2a and 2b are diagrams showing cable laying using the multi-pulling machine according to the present invention.

And, Figure 3 is a perspective view showing a multi-pulling machine of the multi-pulling system, Figure 4 is a top view of the multi-pulling machine shown in Figure 3, Figure 5 is an exploded perspective view of the multi-pulling machine shown in Figure 3, Figure 6 is a view showing the relationship between the pressing motor, the slider and the housing of the multi-pulling machine shown in FIG.

In addition, Figures 7a and 7b is a view showing the state that the pressing motor of the multi-pulling machine shown in Figure 3 slides in the housing.

The multi-pulling system according to the present invention includes a cable supply device 100 and a cable guide device for guiding the cable C supplied from the cable supply device 100 into the manhole M and the underground power outlet E ( 200), a multi-pulling machine 300 for transporting the cable C supplied into the underground power outlet E, and a cable hanger 400 installed below the multi-pulling machine 300. do.

The cable supply device 100 supplies a cable or a circular pipe (hereinafter collectively referred to as 'cable') wound around the drum 120 toward the cable guide device 200, and the drum stand 110 and , The drum 120 is rotatably installed on the drum stand 110, and the drum roller 130 is installed on the front and rear surfaces of the drum stand 110, respectively.

The drum stand 110 is installed on the ground to support the drum 120 .

The drum 120 is rotated in the drum stand 110, and a cable C is wound on the outer surface. As the drum 120 rotates in one direction, the wound cable C is released.

The drum rollers 130 are installed on both sides of the drum 120 to prevent the cable C from contacting the ground.

The cable guide device 200 guides the cable C through a caterpillar 230 installed in front of the cable supply device 100 and pipe rollers 220 and guide rollers 240 installed in the front and rear of the caterpillar 230. It guides the inside of the manhole (M) and the underground power outlet (E).

In more detail, the cable guide device 200 includes a pipe structure 210 installed on the ground, a pipe roller 220 rotatably installed in the pipe structure 210, and a pipe structure 210. It is composed of a caterpillar 230 installed and transporting the cable C, and a guide roller 240 rotatably installed in the pipe structure 210.

The pipe structure 210 is a structure made by assembling a plurality of pipes.

The pipe roller 220 supports the cable C supplied from the cable supply device 100.

The caterpillar 230 guides and supplies the cable (C) supported and supplied by the pipe roller 220 toward the manhole (M) at a constant speed.

The guide roller 240 guides the cable C supplied by the caterpillar 230 into the corrugated pipe M1 provided at the entrance of the manhole M.

The multi-pulling machine 300 is installed on the wall angle A installed at regular intervals on the side of the underground power outlet E, and is installed at a predetermined distance apart from the upper side of the cable hanger 400 where the cable C is laid. .

The underground power outlet (E) is to connect between the manholes (M) installed at regular intervals in the ground, and a plurality of corner rollers (M2) are provided at the corner start and end points inside the manhole (M), so that the underground power outlet (E) ) Supports and guides the cable (C) to the inside, and the cable (C) supplied in this way is supplied toward a plurality of multi-pulling machines (300) installed at regular intervals on the side of the underground power outlet (E).

Such a multi-pulling machine 300 is installed on the inner side of the underground power outlet (E) and pressurizes the cable (C) supplied to the inside of the underground power outlet (E) through the manhole (M) to hold or pressurize. Release to descend and discharge the cable (C).

In more detail, the multi-pulling machine 300 includes a housing 310, a fixed motor 320 installed in the housing 310, a slider 330 installed inside the housing 310, and the A pressing motor 340 mounted inside the slider 330, a rotation handle 350 rotatably installed in the housing 310, and a fixing bar connecting the housing 310 and the cable hanger 400 ( 360) and a chain 370 connected to the housing 310.

The housing 310 has a shape similar to a box body having a hexahedral shape as a whole, and is installed on the wall angle (A) together with a vibration absorbing pad, and the coupling piece 311 fastened to the wall angle (A) is It is provided on the upper and lower surfaces, respectively. The housing 310 has a mounting groove 312 and a slide groove 313 formed on one side thereof.

The mounting groove 312 starts from one side of the housing 310 and extends long into the housing 310 . An insertion groove 314 is formed on the bottom surface of the housing 310 corresponding to the portion where the mounting groove 312 is formed.

The insertion groove 314 starts from one end of the bottom surface of the housing 310 and extends long inward.

The slide groove 313 is formed next to the mounting groove 312 and extends inside the housing 310 starting from one side of the housing 310 .

The fixed motor 320 is installed inside the mounting groove 312 of the housing 310 and provides rotational force to the fixed motor roller 321 protruding downward from the housing 310 .

In more detail, the fixed motor 320 is slidably inserted into the mounting groove 312 of the housing 310, and the fixed motor roller 321 is installed on the motor shaft to provide rotational force for rotating the fixed motor roller 321. generate When the fixed motor 320 is pushed into the housing 310 from the entrance of the mounting groove 312, the motor shaft is inserted into the insertion groove 314 formed on the bottom surface of the housing 310 into the mounting groove 312. rushes in

The fixed motor roller 321 is connected to the motor shaft of the fixed motor 320 protruding from the bottom of the housing 310 through the insertion groove 314 on the bottom surface of the housing 310 . Therefore, the fixed motor roller 321 rotates by receiving power from the fixed motor 320 while protruding from the lower portion of the housing 310 .

The slider 330 is slidably installed inside the slide groove 313 of the housing 310 . The slider 330 has a fitting groove 331 formed on the bottom surface.

The fitting groove 331 is a place where the motor shaft of the pressing motor 340 is slidably inserted when the pressing motor 340 is pushed into the slider 330 .

The pressure motor 340 is seated inside the slider 330 and slides together when the slider 330 slides inside the slide groove 313, and the pressure motor roller 341 protrudes downward from the housing 310. provides rotational force.

More specifically, the pressure motor 340 equipped with the pressure motor roller 341 is mounted on the slider 330 installed in the slide groove 313 of the housing 310, and the pressure motor roller 341 is mounted. When the pressure motor 340 is pushed into the slider 330 built in the housing 310, the motor shaft of the pressure motor 340 is the fitting groove 331 of the slider 330 and the fitting groove 317 of the housing 310. ) and moves inward while penetrating simultaneously, and then passes through the sliding hole 315 formed on the bottom surface of the housing 310 so as to be connected to the fitting groove 317.

Therefore, when the slider 330 slides inside the housing 310, the motor shaft of the pressure motor 340 passes through the sliding hole 315 and moves inside the sliding hole 315, and the pressure motor roller 341 ) rotates by receiving power from the pressing motor 340 in a state protruding from the lower portion of the housing 310.

Meanwhile, an insertion shaft 340a protrudes from the pressing motor 340, and a guide hole 316 is formed on the other side of the housing 310 in a longitudinal direction.

The insertion shaft 340a is inserted into the guide hole 316 when the pressure motor 340 is mounted in the slider 330 . Therefore, when the pressing motor 340 slides in the forward and backward directions inside the slide groove 313, the insertion shaft 340a slides together within the guide hole 316.

The rotating handle 350 is rotatably installed on the front surface of the housing 310 and is connected to the slider 330, and when rotated in one direction, the pressing motor 340 is brought closer to the fixed motor 320 to When the cable (C) between the fixed motor roller 321 and the pressure motor roller 341 is gripped and rotated in the other direction, the pressure motor 340 is moved away from the fixed motor 320 so that the fixed motor roller The cable (C) between 321 and the pressure motor roller 341 is dropped to the cable hanger 400.

In more detail, the rotary handle 350 is provided with a spiral rod 351 having a spiral formed on its outer circumferential surface, and the tip of the spiral rod 351 is coupled to the side surface of the slider 330. The spiral rod 351 is spirally coupled with a nut installed in the housing 310 and rotates the rotation handle 350 in one direction and the other direction to move the slider 330 into the slide groove 313 while moving in and out of the housing 310. slide in

That is, when the rotary handle 350 is rotated in one direction, the spiral rod 351 enters the housing 310 while rotating together with the rotary handle 350, and the slider 330 is attached to the spiral rod 351 It is pushed and moves in a straight line toward the fixed motor 320, so that the distance between the pressing motor 340 and the fixed motor 320 becomes closer. When the distance between the pressure motor 340 and the fixed motor 320 becomes closer in this way, the distance between the fixed motor roller 321 and the pressure motor roller 341 also becomes closer, so that the cable C therebetween is the fixed motor roller ( 321) and the pressure motor roller 341. At this time, a damper is installed at the end of the spiral bar 51 to compensate for the tolerance between the components, and the damper is positioned between the slider 30 and the spiral bar 51, and is additionally pressed by the amount of compression of the damper.

Then, when the rotary handle 350 is rotated in the other direction, the spiral rod 351 rotates together with the rotary handle 350 to escape to the outside of the housing 310, and the slider 330 is attached to the spiral rod 350. It is pulled and moves in a straight line toward the opposite side of the fixed motor 320, so that the distance between the pressing motor 340 and the fixed motor 320 increases. If the distance between the pressure motor 340 and the fixed motor 320 increases in this way, the distance between the fixed motor roller 321 and the pressure motor roller 341 also increases, so that the fixed motor roller 321 and the pressure motor roller 341 The cable C, which was pressurized by , is dropped downward by its own weight and is seated on the upper surface of the cable hanger 400 . As a result, the operator does not need to directly lift the cable C and place it on the cable hanger 400.

The fixing bar 360 is composed of a vertical spiral bar 361, a plate 362 installed at the bottom of the vertical spiral bar 361, and a bracket 363 provided on the bottom surface of the plate 362. .

The vertical spiral rod 361 has an upper end connected to the bottom surface of the housing 310 in the shape of a straight rod.

The plate 362 is rotatably installed at the lower end of the vertical spiral rod 361 .

The bracket 363 is bolted together with the plate 362 at the end of the cable hanger 400.

Such a fixing bar 360 can prevent the cable hanger 400 from being drooped down or bent due to a drop impact of the cable C when the cable C is dropped and installed on the upper surface of the cable hanger 400. there is.

The chain 370 is provided so that the multi-pulling machine of the present invention is more firmly installed on the wall angle A, one end is connected to both sides of the housing 310 and the other end is connected to the underground power outlet ( E) is fixed on the side.

A turnbuckle 371 is provided on the chain 370 to adjust the length of the chain 370, adjust the tension of the chain, and absorb vibration and shock.

As described above, the cable hanger 400 is installed at a certain distance from the lower side of the multi-pulling machine 300, and the cable C descended and discharged from the multi-pulling machine 300 is laid on the upper surface.

The multi-pooling system according to the present invention has been described above. Hereinafter, a cable laying method using the multi-pulling system configured as described above will be described.

The cable laying method using the multi-pulling system according to the present invention is completed through a multi-step process.

First, the first step is a process of unwinding the cable C wound around the drum 120 of the cable supply device 100 and connecting it to the caterpillar 230 of the cable guide device 200.

The second step is to operate the caterpillar 230 and push the cable (C) at a constant speed into the corrugated pipe (M1) provided at the entrance of the manhole (M) to the inside of the underground power outlet (E) through the manhole (M). Supply cable (C).

The third step is to rotate the rotation handle 350 of the multi-pulling machine 300 installed on the side of the underground power outlet E in one direction to move the pressing motor 340 of the multi-pulling machine 300 toward the fixed motor 320. By moving, the cable (C) supplied to the inside of the underground power outlet (E) through the manhole (M) after passing through the corrugated pipe (M1) is connected to the fixed motor roller 321 and the pressure motor 340 of the fixed motor 320 It is a process of pressing with the pressure motor roller 341 of the.

The underground power outlet (E) is mainly formed in a quadrangular shape, and a wall angle (A) is installed in the vertical direction on both vertical walls, and the wall angle (A) is along the longitudinal direction of the underground power outlet (E). Many are installed at regular intervals. The third step is that the multi-pulling machine 300 is installed at a predetermined position of the wall angle A, and the cable C supplied into the underground power outlet E is pressurized by the multi-pulling machine 300. am.

The fourth step is to operate the fixed motor 320 and the pressure motor 340 to rotate the fixed motor roller 321 and the pressure motor roller 341 pressing the cable C, so that the underground power outlet E This is a process in which the fixed motor rollers 321 and the pressure motor rollers 341 of the plurality of multi-pulling machines 300 spaced apart from each other are pressurized and transferred to the cable C.

That is, the fixed motor roller 321 and the pressure motor roller 341 of the multi-pulling machine 300 installed at the entrance of the underground power outlet E among the plurality of multi-pulling machines 300 installed in the underground power outlet E. ) After pressurizing the cable (C), the cable (C) is continuously supplied to the inside of the underground power outlet (E), and the fixed motor roller 321 and the pressurized motor roller of the multi-pulling machine 300 installed inside 341) also pressurizes and transfers the cable (C). In this way, after the fixed motor rollers 321 and the pressure motor rollers 341 of all the multi-pulling machines 300 pressurize and transfer the cable C, the power supply to the multi-pulling machine 300 is cut off so that the fixed motor 320 ) and the operation of the pressure motor 340 is stopped, and then the next step continues.

The fifth step is to move the pressure motor 340 in the opposite direction of the fixed motor 320 by rotating the rotating handle 350 in the other direction, thereby separating the fixed motor roller 321 and the pressure motor roller 341, This is a process of dropping and discharging the cable C, which has been pressed by the fixed motor roller 321 and the pressure motor roller 341, on the upper surface of the cable hanger 400 installed at a certain distance from the lower side of the multi-pulling machine 300. .

On the other hand, a guide roller R composed of a straight roller and a corner roller is installed between the plurality of multi-pulling machines 300 spaced apart on the inner surface of the underground power outlet E to support and guide the cable C. When (C) is dropped and discharged from the multi-pulling machine 300 to the upper surface of the cable hanger 400, the guide roller R is also lowered and discharged.

That is, the guide roller R is installed at the wall angle A between the multi-pulling machines 300 at almost the same height as the installation height of the multi-pulling machine 300 to prevent the cable C from being drooped downward , When the cable (C) is dropped in the multi-pulling machine (300), the guide roller (R) is also dropped so that the cable (C) installed in the cable hanger (400) is in a horizontal state.

The sixth step is a process of bending the cable C installed on the upper surface of the cable hanger 400 in the vertical and horizontal directions as much as desired. That is, the sixth step is to bend the cable C in a set direction and angle through a bending operation of the cable C, which is called a snake operation, and through this, the cable laying method according to the present invention is completed.

100: cable feeder 110: drum stand
120: drum 130: drum roller
200: cable guide device 210: pipe structure
220: pipe roller 230: caterpillar
240: guide roller 300: multi-pulling machine
310: housing 311: coupling piece
312: mounting groove 313: slide groove
314: insertion groove 315: sliding hole
316: guide hole 317: fitting groove
320: fixed motor 321: fixed motor roller
330: slider 331: fitting groove
340: pressing motor 340a: insertion shaft
341: pressure motor roller 350: rotation handle
351: spiral bar 360: fixed bar
361: vertical spiral bar 362: plate
363: bracket 370: chain
371: turnbuckle 400: cable hanger
A: wall angle C: cable
E: Underground Power Conduit M: Manhole
M1: Corrugated pipe M2: Corner roller
R: guide roller

Claims (9)

a cable supply device 100 supplying the cable C wound around the drum 120;
The cable C is routed through the manhole M and the underground power through the caterpillar 230 installed in front of the cable supply device 100 and the pipe rollers 220 and guide rollers 240 installed in the front and rear of the caterpillar 230. a cable guide device 200 guiding the inside of the sphere E;
It is installed on the inner side of the underground power outlet (E) and pressurizes and grips the cable (C) supplied to the inside of the underground power outlet (E) through the manhole (M), or releases the pressurized state to lower the cable (C). A multi-pulling machine 300 that discharges;
A cable hanger 400 installed at a certain distance from the lower side of the multi-pulling machine 300 and laying the cable C descended and discharged from the multi-pulling machine 300 on the upper surface; Multi-pulling system.
The method of claim 1,
The cable supply device 100 includes a drum stand 110 installed on the ground;
a drum 120 rotatably installed on the drum stand 110 and around which the cable C is wound;
A multi-pulling system, characterized in that composed of; drum rollers 130 installed on the front and rear surfaces of the drum stand 110, respectively.
The method of claim 1,
The cable guide device 200 includes a pipe structure 210 formed by assembling a plurality of pipes;
a pipe roller 220 rotatably installed on the pipe structure 210 to support the cable C supplied from the cable supply device 100;
A caterpillar 230 installed in the pipe structure 210 and guiding the cable C supported and supplied by the pipe roller 220 toward the manhole M at a constant speed;
A guide roller 240 rotatably installed in the pipe structure 210 and guiding the cable C guided by the caterpillar 230 into the corrugated pipe M1 provided at the entrance of the manhole M; A multi-pooling system, characterized in that configured.
The method of claim 1,
The multi-pulling machine 300 includes a housing 310 in which mounting grooves 312 and slide grooves 313 are formed;
a fixed motor 320 installed in the mounting groove 312 of the housing 310 and composed of a fixed motor roller 321 protruding downward from the housing 310;
a slider 330 slidably installed inside the slide groove 313 of the housing 310;
a pressure motor 340 that is seated inside the slider 330, slides with the slider 330, and provides rotational force to a pressure motor roller 341 protruding downward from the housing 310;
It is rotatably installed in the housing 310 and is connected to the slider 330, and when rotated in one direction, the pressing motor 340 is brought closer to the fixed motor 320 to press the fixed motor roller 321 When the cable (C) between the motor rollers 341 is pressurized and rotated in the other direction, the press motor 340 is moved away from the fixed motor 320 so that the fixed motor roller 321 and the press motor roller ( 341) by lowering and discharging the cable (C) between the rotating handle (350) for laying the cable (C) on the upper surface of the cable hanger (400); multi-pulling system characterized in that it is configured to include.
The method of claim 4,
The rotation handle 350 is provided with a spiral bar 351 whose end is coupled to the side surface of the slider 330, so that when the rotation handle 350 is rotated in one direction and the other direction, the spiral bar 351 moves to the housing ( 310) A multi-pulling machine characterized by sliding the slider 330 inside the slide groove 313 while moving in and out.
The method of claim 4,
Further comprising a fixing bar 360 connecting the housing 310 and the cable hanger 400,
The fixing bar 360 includes a vertical spiral bar 361 having an upper end connected to the bottom surface of the housing 310;
a plate 362 rotatably installed at the lower end of the vertical spiral rod 361;
A multi-pulling system, characterized in that composed of; a bracket 363 provided on the bottom surface of the plate 362 and bolted to the end of the cable hanger 400.
The method of claim 4,
On both sides of the housing 310, a chain 370 having one end fixed to the side of the underground power outlet E is provided, and a turnbuckle 371 is provided on the chain 370. Multi-pulling system, characterized in that .
A first step of connecting the cable C wound around the drum 120 of the cable supply device 100 to the caterpillar 230 of the cable guide device 200;
A second step of pushing the cable (C) at a constant speed into the corrugated pipe (M1) provided at the entrance of the manhole (M) by operating the caterpillar (230);
By rotating the rotation handle 350 of the multi-pulling machine 300 installed on the side of the underground power outlet E in one direction to move the pressing motor 340 of the multi-pulling machine 300 toward the fixed motor 320, After passing through the corrugated pipe (M1), the cable (C) supplied to the inside of the underground power outlet (E) through the manhole (M) is pressurized by the fixed motor roller 321 of the fixed motor 320 and the pressure motor 340 a third step of pressing with the motor roller 341;
By operating the fixed motor 320 and the pressure motor 340 to rotate the fixed motor roller 321 and the pressure motor roller 341 pressurizing the cable C, spaced inside the underground power outlet E A fourth step of allowing the fixed motor rollers 321 and the pressure motor rollers 341 of the multi-pulling machines 300 to press the cable C;
By rotating the rotation handle 350 in another direction to move the pressure motor 340 in the opposite direction of the fixed motor 320, the fixed motor roller 321 and the pressure motor roller 341 are separated, thereby fixing the Fifth, the cable C, which has been pressed by the motor roller 321 and the pressure motor roller 341, is dropped and discharged to the upper surface of the cable hanger 400 installed at a certain distance from the lower side of the multi-pulling machine 300. step;
A sixth step of bending the cable C installed on the upper surface of the cable hanger 400 vertically and horizontally as much as desired; cable laying method using a multi-pulling system, characterized in that it is configured to include.
The method of claim 8,
A guide roller (R) for supporting and guiding the cable (C) is installed between the plurality of multi-pulling machines (300) spaced apart from each other on the inner surface of the underground power outlet (E), so that the cable (C) is pulled through the multi-pulling machine (300). ) to the upper surface of the cable hanger 400, the cable laying method using the multi-pulling system, characterized in that the guide roller (R) is also lowered and discharged.

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