KR101717769B1

KR101717769B1 - Apparatus for assisting installation of electrical cable in a underground tunnel

Info

Publication number: KR101717769B1
Application number: KR1020150163971A
Authority: KR
Inventors: 신현칠
Original assignee: 에스엠파워텍 주식회사
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2017-03-17

Abstract

An apparatus for installing wires in an underground joint according to the present invention includes: a body having a coupling portion to be coupled to a hydraulic machine; A cantilevered extension extending linearly from the body; And an outlet portion which is fixed to the free end portion of the extension portion and has an upwardly opened portion and a downwardly convex cross section so as to receive the electric wire and which is bent so that the tip end of the received electric wire is guided in a direction away from the body in the longitudinal direction of the extension portion A wire fixing member; .

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus for installing an electric cable in an underground space,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary device used for installing a large diameter wire installed in an underground pipe.

Underground culverts are used to collect underground facilities with road excavation, such as supply facilities for electricity, gas, and water, as well as telecommunication lines and sewerage facilities, so that underground facilities It says. Various facility facilities can be concentrated in the underground joint area without installation of ground processing line such as electric pole line including Jeonju. Therefore, underground culverts are widely applied to newly constructed new cities, commercial areas, and apartment complexes, because they can maintain various types of facilities at the same time in one place and can produce a pleasant ground space.

In general, an underground joint is formed by digging the ground as much as a space for installing an underground joint when constructing a road or an apartment complex, and installing a floor slab, both side walls and a ceiling slab by in situ concrete pouring. An example of a structure in which an electric wire is installed in such an underground joint is disclosed in Korean Patent No. 1246281.

Such underground openings are formed in the basement in the form of a tunnel, and various facilities are installed in the underground openings. The present invention relates to an apparatus for installing wires, which can be used for easily installing a large-diameter wire installed in the underground cavity. Conventionally, a person manually worked a large diameter, more specifically, a wire having a diameter of 100 mm to 200 mm on a mounting table provided on the side wall of the underground cavity. However, the above-mentioned large-diameter wire has a problem in that a heavy worker is forced into the side wall of the underground pipe and the work efficiency is remarkably reduced.

It is an object of the present invention to provide a device capable of easily lifting a large diameter wire installed in an underground pipe from a floor at a certain height as well as transferring a large diameter wire to an installation position There is.

According to an aspect of the present invention, there is provided an apparatus for installing wires in an underground pipe, including: a body having a coupling portion to be coupled to a hydraulic machine;

A cantilevered extension extending linearly from the body; And

An electric wire fixed to the free end of the extended portion and having an outlet portion which is opened upward to receive the electric wire and which has a downwardly convex section and is bent so that the tip end of the received electric wire is guided in a direction away from the body in the longitudinal direction of the extended portion, A stationary guide member; .

It is preferable that the wire fixing guide member is formed such that an inlet portion into which the electric wire is introduced and the outlet portion are inclined downward toward the ground.

It is preferable that a plurality of bearing structures are provided inside the electric wire guide member so as to reduce frictional force with the electric wire.

The body,

A rod-shaped upper member;

A rod-shaped lower member disposed below the upper member and spaced apart from the upper member at a predetermined interval; And

And a connection body disposed between the upper member and the lower member and fixing the upper member and the lower member.

The connection body is preferably coupled to the upper member and the lower member by bolts and nuts.

And the extension portion and the wire fixing guide member are welded together.

The apparatus for installing a wire in an underground joint according to the present invention is characterized in that a heavy large-diameter wire laid on the bottom of an underground pipe can be easily lifted up to a certain height from the floor and guided to the large- It is possible to easily install the electric wires in the underground joint without requiring extra effort. In addition, the bearing structure provided in the wire-laying guide member of the preferred embodiment of the present invention reduces the frictional force with the wire, thereby preventing the coating from being peeled or damaged during the installation of the wire. In addition, the apparatus for wire installation according to the present invention is advantageous in that it is simple in construction and easy to manufacture, and the manufacturing cost is considerably lower than that of a conventional device such as a pusher or a winch.

1 is a schematic perspective view of a wire installation apparatus installed in an underground cavity according to a preferred embodiment of the present invention.
2 is a sectional view taken along the line II-II shown in Fig.
3 is a sectional view taken along the line III-III shown in Fig.
FIG. 4 is a view showing a state where the apparatus shown in FIG. 1 is installed in a forklift which is a hydraulic equipment, and a wire is installed on the side wall of the underground cavity while moving in the longitudinal direction of the underground cavity.
FIG. 5 is a schematic view showing a state where the apparatus shown in FIG. 1 is installed in a forklift which is a hydraulic equipment.
FIG. 6 is a view showing a state in which electric wires are installed in an underground cavity using the apparatus shown in FIG. 1 in another direction.

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

1 is a schematic perspective view of a wire installation apparatus installed in an underground cavity according to a preferred embodiment of the present invention. 2 is a sectional view taken along the line II-II shown in Fig. 3 is a sectional view taken along the line III-III shown in Fig. FIG. 4 is a view showing a state where the apparatus shown in FIG. 1 is installed in a forklift which is a hydraulic equipment, and a wire is installed on the side wall of the underground cavity while moving in the longitudinal direction of the underground cavity. FIG. 5 is a schematic view showing a state where the apparatus shown in FIG. 1 is mounted on a forklift which is a hydraulic machine equipment. FIG. 6 is a view showing a state in which electric wires are installed in an underground cavity using the apparatus shown in FIG. 1 in another direction.

1 to 6, an apparatus 10 for installing wires (hereinafter referred to as "apparatus for installing wires") installed in an underground cavity according to a preferred embodiment of the present invention includes a large diameter wire 300 Is moved from the floor at a constant height to be mounted on the side wall of the underground cavity 100. [

The electric wire installation device 10 is mounted and used in a hydraulic machine such as a forklift 200, for example. The forklift 200 fixes and installs the large diameter wire 300 at a desired position while moving in the longitudinal direction of the underground hollow 100.

The electric wire installation device 10 includes a body 20, an extension 30, and a wire guide member 40.

The body 20 is a structure having a coupling portion 21 that can be mounted on a hydraulic device such as a forklift 200, for example. The body 20 includes an upper member 22, a lower member 24, and a connecting body 26. The body 20 may be made of a metal material such as carbon steel or stainless steel.

The upper member 22 is a bar-shaped member having a C-shaped or U-shaped cross section extending linearly.

The lower member 24 is a rod-shaped member having the same cross section as the upper member 22. The lower member 24 is disposed below the upper member 22. The lower member 24 is spaced apart from the upper member 22 by a predetermined distance.

The connecting body 26 is disposed between the upper member 22 and the lower member 24. The connection bodies 26 are spaced apart from each other in the longitudinal direction of the upper member 22 at regular intervals. The spacing between the pair of connecting bodies 26 is the same as the spacing between the spokes of the forklift 200 so that when the body 20 is mounted on the forklift 200, .

The connecting body 26 serves to fix the upper member 22 and the lower member 24 together. More specifically, the connection body 26 may be fixed to the upper member 22 by a plurality of bolts and nuts. The connecting body 26 may be fixed to the lower member 24 by a plurality of bolts and nuts. The connecting body 26 may be a rectangular box-shaped structure. Both side surfaces of the connection body 26 may have an open structure.

The extension (30) is a cantilevered structure extending linearly from the body (20). The extension 30 may extend from the lower member 24.

The wire fixing guide member (40) is fixed to the free end of the extension part (30). It is preferable that the wire fixing guide member 40 is made of a metal material such as carbon steel or stainless steel. The wire-laying guide member 40 may be fixed to the extension portion 30 by welding. The wire-laying guide member 40 is a structure which is opened upward so as to receive a wire. The wire fixing guide member (40) has a downwardly convex cross section. For example, the wire-laying guide member 40 has a sectional structure in which the circular tube is split in half. The wire-laying guide member 40 is disposed in a direction perpendicular to the longitudinal direction of the body 20 on a plan view. The wire fixing guide member 40 has an inlet portion 42 and an outlet portion 44. The inlet portion 42 is a portion through which the electric wire is introduced. The inlet portion 42 is formed so as to be inclined downward smoothly toward the ground. The electric wire is naturally introduced into the electric wire guide member 40 through the inlet portion 42. [ The outlet portion 44 is formed to have a structure bent in a longitudinal direction of the body 20 on a plan view. More specifically, the outlet portion 44 is bent in a direction away from the body 20 in the longitudinal direction of the extension portion 30. [ As a result, the outlet portion 44 functions to induce the leading end of the electric wire, which is introduced into the inlet portion 42 and received, to be away from the body 20 in the longitudinal direction of the extended portion 30. [ Also, the outlet portion 44 is formed to be inclined downward toward the ground like the inlet portion 42. A plurality of bearing structures 60 may be provided in the wire guide member 40 to reduce frictional force with the wire 300. The bearing structure 60 may have a structure in which a plurality of balls or cylindrical rollers capable of rotating around a shaft provided under the inner wall of the wire fixing guide member 40 are installed.

Hereinafter, a method of installing the large-diameter cable 300 in the underground cavity 100 using the apparatus 10 for installing wires including the above-described components will be described.

4 to 6, the wire installation device 10 according to the present invention is mounted on a forklift 200 moving along the underground cavity 100. The forklift 200 is provided with a spoke 210 which can be lifted and lowered by a hydraulic mechanism. The body (20) is coupled to the spokes (210). The description starts from a state in which the large diameter wire which is fed out from the outer drum in the length direction of the underground cavity 100 is placed on the floor.

First, the spokes 210 of the forklift 200 are moved to a position low enough to touch the ground. Then, electric wires are placed on the electric wire guide member 40. The spokes 210 of the forklift 200 are moved up to the position where the large diameter wire is to be installed. As a result, the electric wire laid on the electric wire guiding member 40 is lifted up to a predetermined position from the floor. Now, the forklift 200 is slowly moved along the underground joint 100 with the wire installation device 10 mounted. The electric wire placed on the floor is sequentially received along the entrance portion 42 of the wire placing guide member 40 and is discharged along the outlet portion 44 after being received by the wire placing guide member 40. In this process, the large diameter wire moves upward from the floor and moves to a certain height, and then moves toward the side wall of the underground cavity 100. Since the side wall of the underground cavity 100 has the same structure as the shelf 120 that can hold the large diameter wire, the electric wire discharged from the exit portion 44 can be smoothly moved to the side wall of the underground cavity 100, And is placed on the shelf 120 provided on the shelf 120. By this process, the operator can move the forklift 200 along the underground joint 100 to the position where the large-diameter wire is to be installed.

As described above, the apparatus for installing wires according to the present invention raises the heavy large-diameter wire placed on the floor of the underground cavity easily at a certain height from the floor and induces the large-diameter wire to be transferred to the shelf provided on the side wall of the underground cavity, So that it is possible to easily install the electric wire in the underground cavity without administering it. Also, in this process, the bearing structure provided on the electric wire guiding member reduces the frictional force with the electric wire, thereby preventing the coating from being peeled or damaged during the installation of the electric wire. The apparatus for wire installation according to the present invention is advantageous in that it is easy to manufacture due to its simple structure and its manufacturing cost is significantly lower than that of a conventional apparatus such as a pusher or a winch.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limited to the embodiments set forth herein. .

10: Cable installation device installed in an underground space
20: Body
22: upper member
24: Lower member
26: Connection body
30: Extension
40: a wire fixing member
42:
44:
60: Bearing structure
100: underground joint
120: Shelf
200: Forklift truck
210: spoke
300: Wires

Claims

A body having a coupling for coupling to the hydraulic machine;
A cantilevered extension extending linearly from the body; And
An electric wire fixed to the free end of the extended portion and having an outlet portion which is opened upward to receive the electric wire and which has a downwardly convex section and is bent so that the tip end of the received electric wire is guided in a direction away from the body in the longitudinal direction of the extended portion, A stationary guide member; Wherein the wire is installed in an underground joint.

The method according to claim 1,
Wherein the wire fixing guide member is formed such that an inlet portion through which the electric wire is introduced and an outlet portion thereof are inclined downward toward the ground surface.

The method according to claim 1,
Wherein a plurality of bearing structures are provided inside the electric wire guide member to reduce frictional force with the electric wire.

The method according to claim 1,
The body,
A rod-shaped upper member;
A rod-shaped lower member disposed below the upper member and spaced apart from the upper member at a predetermined interval; And
And a connection body disposed between the upper member and the lower member and fixing the upper member and the lower member.

5. The method of claim 4,
Wherein the connection body is coupled to the upper member and the lower member by bolts and nuts.

The method according to claim 1,
Wherein the extension portion and the wire fixing guide member are joined by welding.