KR101968893B1 - Underground line construction for manhole roller - Google Patents

Abstract

The present invention provides a manhole roller for ground line construction that is firmly installed on a lead-out path of a wire for pulling a cable when a cable is installed in an underground channel, thereby preventing wire damage and improving work efficiency.
To this end, the present invention relates to a manhole cover having a manhole cover on which a manhole cover is mounted and protruding from a circular base at a predetermined height, a dam chin which forms a concert hall groove concaved along the inside surface of the manhole, The manhole roller according to claim 1, wherein the manhole cover is mounted on a manhole cover base having a seating edge formed along the inner surface of the water tray jaw, the base plate having a rounded front surface corresponding to the circular mold of the manhole cover base, A pair of upper and lower base plates, a pair of upper and lower base plates, a pair of upper and lower base plates, a pair of upper and lower base plates, Mount the wire to pull the cable Characterized in that the roller having a part.
According to the above technical structure, there is an effect that the wire is firmly installed on the lead-out route of the wire for pulling the cable when the cable is installed in the underground channel, thereby preventing the wire from being damaged and improving the working efficiency.
In particular, since the manhole cover can be detachably attached to the pedestal without detachment, the applicability to the field is excellent, and when the wire is taken up for pulling the cable, the hanger member, the bent portion, There is an effect that can be done.

Description

Underground line construction for manhole roller [

The present invention relates to a manhole roller for underground line construction, and more particularly, to a manhole roller for ground line construction, and more particularly, to a manhole roller for underground line construction which is rigidly installed on a drawing path of a wire for pulling a cable, To a manhole roller for underground line construction.

Generally, underground lines are used to supply electric power by laying cables in pipelines buried in the ground, and the construction is continuously increasing in that it can supply electric power in a large capacity as well as improve the beauty of the city.

[0002] Japanese Patent Application Laid-Open No. 10-2010-0053382 (published on May 20, 2010) relates to a 'wire drawing device', which includes a construction process for constructing an underground line, Will be.

[0002] Japanese Patent Application Laid-Open No. 10-1209873 (published on December 11, 2012) discloses a three-phase power cable vertical take-in and take-out guide roller device, which includes a manhole space connected to an underground channel, Phase power distribution cable installed in an underground pipeline to guide or draw the three-phase distribution cable up to the top of a manhole, comprising: a pair of vertical rods spaced apart at regular intervals; and a plurality of The three-phase distribution cable introduced through the underground pipeline passes through the grid space between the vertical pole and the crossbar in a staggered manner to form a manhole, A ladder-shaped guide body for guiding the upper portion to be drawn out; And a guide roller having an outer circumferential surface which is horizontally connected between the vertical legs so as to be brought into contact with the outgoing path of the three-phase power distribution cable guided by the guide body and whose circumferential length decreases toward the center of the length, The three-phase power cable vertical take-in and take-out guide roller device (hereinafter referred to as " three-phase power cable vertical take-out guide roller device " hereinafter) having a constitution in which a supporting end protruding in a step- Hereinafter referred to as " guide roller device ").

The conventional guide roller device according to the above technical structure is installed in a manhole space and is formed into a ladder shape extending to the underground channel and the upper side of the manhole. Due to its size and weight, it is difficult for an operator to carry or install it, There is a difficulty in installation because a separate transverse bar, a cable fastening hole, and a cable are required to fix the upper part of the apparatus, for example, the upper part of the longitudinal stand.

Disclosure of the Invention The present invention has been conceived in order to solve the above-mentioned problems, and it is an object of the present invention to provide an underground pipe which is firmly installed on a lead- Provide a manhole roller for line construction.

Particularly, the present invention provides a manhole roller for a subway line construction that is small in size and easy to carry, and can be easily attached to and detached from a manhole.

In order to solve the above-described problems, the present invention provides a manhole cover comprising: a circular mold having a manhole cover seated thereon and protruding at a predetermined height from a circular base; a dam body jaw having a concave water- A manhole roller for a subway line installation, which is installed on a manhole cover supporter having a seating edge formed along an inner side surface of a water film jaw lower than a top of a waterhole jaw. The manhole roller includes a base plate having a rounded front surface corresponding to the circular mold of the manhole cover, A roller support which is formed to extend from both sides and is mounted on a seat frame of the manhole cover, an upper roller protruding upward from both sides of the base plate, and a roller support which is rotatably installed between the roller support and protrudes partly inside the circular mold, And a roller for mounting the wire It shall be.

The hooking member is characterized in that at least one bent portion is formed in correspondence with a step between the circular frame, the weft jaws and the seat frame.

The hooking member is characterized in that a restraining projection is formed on the bottom surface of the hooking member so as to be inserted into the water film groove.

The roller portion is composed of a first roller provided to protrude from the inside of the circular mold part and a second roller provided behind the first roller to separate the wire from the paper surface.

In addition, the base plate having the rounded front surface corresponding to the circular mold of the manhole cover supporter is formed with a hook piece bent inward on the circular mold.

According to the present invention, there is an effect that the wire can be firmly installed on the lead-out path of the wire for pulling the cable when the cable is installed in the underground channel, thereby preventing the damage of the wire and improving the working efficiency.

In particular, according to the present invention, it is possible to dispose the manhole cover in a detachable manner without a separate tool, so that it is excellent in application in the field, and when the wire is wound to pull the cable, the hook member, the bending portion, There is an effect that the manhole roller can be prevented from coming in.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing an example of using a manhole roller for underground line construction according to the present invention,
FIG. 2 is an installation view of a manhole roller for underground line construction according to the present invention. FIG.
3 is a perspective view of a manhole roller for underground line construction according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of a manhole roller for ground line construction according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, the term "manhole" refers to an underground facility that allows people to enter and work to carry out maintenance work such as cable entry, replacement, and connection.

Such a manhole is provided with a manhole space and a manhole cover and a manhole cover stand, which are structures for accessing the manhole space.

1 to 3, a manhole roller for underground line construction according to the present invention is installed on a drawing path of a wire 1 for pulling a cable when a cable is installed in an underground channel, Is installed on the manhole cover (10) to which the wire (1) touches when the winch (2) is installed on the ground when the wire (1) is drawn out from the ground.

The manhole cover 10 includes a circular frame 12 protruding from the circular base 11 at a predetermined height and a watertight groove 13 recessed along the inner side of the circular frame 12 lower than the upper end of the circular frame 12 A seating frame 15 is formed along the inner surface of the water jug 14 lower than the upper end of the water jug 14 and the water jug 14. [

Of course, the manhole cover (not shown) is seated on the manhole cover 10 so as not to protrude from the top of the mold 12.

According to the above technical arrangement, after the manhole is installed, the manhole cover is wrapped to the upper end of the circular mold (12) so that the manhole cover is flat with the road surface (or the ground)

The manhole roller for underground line construction according to the present invention comprises a circular mold 12 protruding from a circular base 11 at a predetermined height and a concave wall 12 which is recessed along the inner side of the circular mold 12, The manhole cover 14 is preferably installed on the manhole cover 10 having the seating frame 15 formed along the inner side surface of the waterhole tongue 14 lower than the upper end of the waterhole tongue 14, A hooking member 30 extending from both sides of the front surface of the base plate 20 and hooked to a seating edge 15 of the manhole cover supporter, the base plate 20 having a rounded front surface corresponding to the circular mold 12 of the pedestal, A roller support 40 protruded upward from both sides of the base plate 20 and a wire 1 for pivoting between the roller support 40 and a part projecting inside the circular frame 12 to pull the cable (Not shown) provided with a roller portion 50 All.

In the above technical arrangement, the hooking member 30 is bent in a U-shape so that it hangs around the seating edge 15 of the manhole cover. When the end of the hooking member 30 is inserted into the seating edge 15 of the manhole cover- And the bottom surface of the base plate 20 is positioned adjacent to the circular mold 12 of the manhole cover base.

As the winch 2 for winding the wire 1 for pulling the cable is located on the ground, the wire 1 drawn out from the underground conduit to the manhole entrance 4 is bent and contacts the inner circumferential surface of the manhole cover 10 At this time, when the wire (1) is placed on the roller portion (50) which is partially protruded inside the circular mold (12) of the manhole cover, the friction due to the pulling can be reduced, And it is in a state in which it is hooked to the seating edge 15 of the manhole cover supporter by the hook member 30. Therefore, it is possible to prevent the manhole roller according to the present invention from being attached in the process of winding the wire 1. [

The hooking member 30 is formed with at least one bent portion 31 corresponding to the stepped portion of the circular frame 12, the weft jaw 14 and the seating frame 15. [

That is, the manhole cover 10 is lowered in height in the order of the circular frame 12, the weft jaws 14 and the seating frame 15, and the hooking member 30 is provided with at least one The bending portion 31 is formed so that the manhole roller according to the present invention can be held firmly together with the hooking member 30 in the process of winding the wire 1. [

Next, the hooking member 30 is formed with a restraining protrusion 32 to be inserted into the water film groove 13 on the bottom surface thereof.

That is, the manhole cover 10 has a concave watertight groove 13 formed by the watertight jaws 14 so as to prevent water from flowing into the manhole. The watertight groove 13 is formed on the bottom surface of the hook 30, The manhole roller according to the present invention can be held firmly together with the hooking member 30 in the process of winding the wire 1 as the restraining protrusion 32 inserted into the hooking member 30 is formed.

On the other hand, the base plate 20, whose front surface is rounded in correspondence with the circular mold 12 of the manhole cover, is further formed with hooking pieces 21 which are bent inwardly on the circular mold.

According to the above technical arrangement, since the hook piece 21 is installed over the circular frame 12 of the manhole cover supporter, in the course of winding the wire 1, the hook member 30 ), It will be able to hold more firmly.

Next, the roller unit 50 includes a first roller 50a which is provided so as to protrude partially inside the circular mold 12, and a second roller 50b which is provided behind the first roller 50a to separate the wire 1 from the paper 2 rollers 50b.

The roller portion 50 is firmly installed on the drawing path of the wire 1 so that the first roller 50a is pulled out from the underground pipe to the manhole entrance 4 and is wound on the wire 1 And the second roller 50b positioned at the rear side is mounted on the wire 1 drawn out to the winch 2 side.

Therefore, the wire 1 drawn out from the underground pipeline to the manhole entrance 4 can be guided to the winch 2 side without being damaged.

In the meantime, the roller 50 according to the present invention allows the wire 1 to move left and right by a predetermined width as the wire 1 is wound on the bobbin of the winch 2, The rollers are made to have a predetermined width, and support plates 50 'are provided at both ends of the rollers to prevent the wire 1 from coming off.

In the present invention, the manhole roller according to the present invention is mounted on the outgoing path of the wire for pulling the cable in the underground channel. However, the manhole roller according to the present invention is not limited to the cable, It can be used well in the process of entering the manhole.

While the present invention has been particularly shown and described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. You can do it.

1: wire
2: Winch
4: Manhole entrance
10: Manhole cover base
11: Circular base
12: Circular pattern
13: Clutter home
14: chinchilla
15: Seated border
20: base plate
30:
31:
32:
40: Roller support
50: roller portion
50a: first roller
50b: the second roller
50 ': Support plate

Claims (5)

A water tray jaw which has a manhole cover placed in a flat state on the ground and formed with a height protruding from the circular base at a predetermined height and which forms a water tray groove concave along the inner side of the circular mold lower than the upper end of the circular mold, Wherein the manhole cover is mounted on a manhole cover base having a seating edge along the inner surface of the water tray jaw,
A base plate on which a front surface is rounded in correspondence with the circular mold of the manhole cover, and a hook piece bent on the inner surface of the circular mold on the front surface,
The base plate is extended from both sides of the front surface of the base plate, the base plate is placed on the floor of the manhole cover, the end is bent in the shape of the letter U so as not to be caught when the wire is wound, A hook member formed with projections,
A roller support protruding upward from both sides of the base plate,
A first roller installed to be rotatable between the roller support rods and partially protruding from the inside of the circular mold so as to receive a wire drawn to a manhole entrance from an underground conduit, And a second roller for separating the first roller and the second roller from each other.
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