KR102305592B1 - Manhole cover for managing system of cable tunnel - Google Patents

Abstract

The present invention relates to a manhole cover for operating and managing an underground cable tunnel. More specifically, the present invention relates to the manhole cover mounted in a manhole structure formed for operating and managing a cable tunnel buried in the ground. According to the present invention, the manhole cover for operating and managing an underground cable tunnel comprises: a manhole cover unit opening and closing a storage space of the manhole structure; a sensing unit sensing oxygen concentration; a case unit storing the sensing unit therein; a rope unit connecting the manhole cover unit and the case unit; a drum coupled to be rotatable to a lower surface of the manhole cover unit and winding a rope unit or enabling the rope unit to be wound according to rotation; and a pulley coupled to be rotatable to the lower surface of the manhole cover and guiding an advancing direction of the rope unit according to the rotation.

Description

Manhole cover for operation and management of underground communication tunnels {MANHOLE COVER FOR MANAGING SYSTEM OF CABLE TUNNEL}

The present invention relates to a manhole cover for operation and management of a communication area, and more particularly, to a manhole cover which is seated on a manhole structure formed for the operation and management of a communication area located underground.

Communication line facilities can be broadly divided into those installed in the air by electric poles and those buried underground. am.

In general, the construction method of underground communication facilities can be divided into direct sales type, pipe type and electric power type. The direct burial method is a method of burying cables directly in the ground, and it is difficult to extend and dismantle them, and is rarely applied at present due to the inconvenience of maintenance. In addition, the old-fashioned electric power method is a method of introducing cables into a tunnel-type structure buried underground, and is applied only in certain cases due to high construction costs.

The conduit type installs a conduit to be connected to the communication port, installs a manhole at the connection point between the communication port and the conduit buried underground, or at the midpoint of the conduit, and connects the underground and the ground by introducing a cable into the communication port and the conduit. It is widely used due to its easy maintenance and relatively low construction cost due to the manhole.

The worker enters the space inside the manhole for the operation and management of the communication port buried underground and proceeds with the work.

A manhole cover equipped with an inner lid where a gas detection sensor is installed has been developed in order to reduce human casualties, but it detects the gas that rises from the inside of the manhole and is located between the inner lid and the manhole cover. There is a limit to not being able to detect the oxygen concentration in the lower part of the manhole.

Therefore, there has been a demand for a manhole cover for operation management of an underground communication area that can detect the oxygen concentration under the manhole.

Korean Patent Registration No. 10-2219411

The technical problem to be achieved by the present invention is to provide a manhole cover for operation and management of an underground communication area that can detect the oxygen concentration in the lower part of the manhole.

The technical problems to be achieved by the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those of ordinary skill in the art to which the present invention belongs from the description below. There will be.

In order to achieve the above technical object, an embodiment of the present invention includes a manhole cover for opening and closing the receiving space of the manhole structure, a sensing unit for sensing oxygen concentration, a case unit accommodating the sensing unit inside, and a manhole cover unit A rope part connecting the case and the drum, which is rotatably coupled to the lower surface of the manhole cover, and a drum for winding and unwinding the rope according to the rotation, and rotatably coupled to the lower surface of the manhole cover, and the progress of the rope according to the rotation It provides a manhole cover for operation and management of an underground communication tunnel including a pulley for guiding the direction.

In one embodiment of the present invention, coupled to the lower surface of the manhole cover, the drum and the pulley further comprising a position adjusting unit for adjusting the position of the drum and the pulley, the position adjusting unit is coupled to the manhole cover, the central portion of one surface A rotating guide in which a guide protrusion is formed to protrude, and a protrusion through hole through which the guide protrusion is penetrated is formed in the center to be rotatable around the guide protrusion, and a rotating body to which a drum and a pulley are combined on one surface, and the guide protrusion It may include a closing cap to prevent separation of the rotating body.

In one embodiment of the present invention, the position adjusting unit is coupled to one surface of the rotating body, and one end of the moving guide having an open inner space, and one end of the moving guide is inserted into the moving guide to be slidable along the inner space, and on one surface It may further include a moving body to which the pulley is coupled.

According to an embodiment of the present invention, the present invention has a structure in which the sensing unit is connected to the manhole cover by a rope unit and is located on the bottom surface of the manhole structure, and the operator opens the manhole cover and then winds the rope to move the sensing unit upward. You can check the oxygen concentration at the bottom of the manhole structure by lifting it up.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be inferred from the configuration of the invention described in the detailed description or claims of the present invention.

1 is a perspective view of a manhole cover for operation management of an underground communication area according to an embodiment of the present invention.
Figure 2 is a bottom view of the manhole cover according to an embodiment of the present invention.
3 is a cross-sectional view taken along line A-A' of FIG. 2 .
4 is a plan view of a case portion and a rope portion according to an embodiment of the present invention.
5 is a cross-sectional view of a case portion according to an embodiment of the present invention, illustrating a state in which the lower plate is lowered with respect to the middle plate.
6 is a cross-sectional view of the case portion according to an embodiment of the present invention, showing a state in which the lower plate is raised with respect to the middle plate.
7 is an exemplary view of the use of a manhole cover for operation management of an underground communication area according to an embodiment of the present invention, and shows a closed state of the receiving space of the manhole structure.
8 is an exemplary view of the use of a manhole cover for operation management of an underground communication area according to an embodiment of the present invention, and shows an open state of the receiving space of the manhole structure.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be embodied in several different forms, and thus is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification, when a part is said to be “connected (connected, contacted, coupled)” with another part, it is not only “directly connected” but also “indirectly connected” with another member interposed therebetween. Including cases where In addition, when it is said that a part "includes" a certain component, it means that other components may be further provided without excluding other components unless otherwise stated.

The terms used herein are used only to describe specific embodiments, and are not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In this specification, terms such as "comprises" or "have" are intended to designate that the features, numbers, steps, operations, components, parts, or combinations thereof described in the specification exist, but one or more other features It should be understood that this does not preclude the existence or addition of numbers, steps, operations, components, parts, or combinations thereof.

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

1 is a perspective view of a manhole cover for operation management of an underground communication area according to an embodiment of the present invention.

The manhole cover for the operation and management of the underground communication area may include a manhole cover part 10, a detection part 20, see FIG. 4), a case part 30, a rope part 40, a drum 50 and a pulley 60. can

The manhole cover part 10 is a component constituting a manhole together with the manhole structure (F), and may be detachably seated on the upper part of the manhole structure (F) buried underground. At this time, the manhole structure (F) has an upper opening and may have an accommodating space (f1) through which a person can enter and exit, and a step (f2) supporting the manhole cover part (10) along the inner periphery of the upper part (f2) It may be formed to protrude in the inward direction.

In the present invention, the manhole cover portion 10 and the manhole structure (F) is a well-known technique to those skilled in the art, so a further detailed description will be omitted.

The sensing unit 20 is a component that senses the surrounding oxygen concentration, and may be accommodated in the case unit 30 . At this time, in the sensing unit 20 , an adhesive layer 21 (refer to FIG. 5 ) that is detachably attached to the case unit 30 and an oxygen sensing layer 22 (refer to FIG. 5 ) whose color changes according to the oxygen concentration are sequentially stacked. it can be done

The adhesive layer 21 may be formed of a colorless material having oxygen permeability, and the oxygen sensing layer 22 is an oxygen sensing composition composed of a composite in which a cationic surfactant, a reversible color-changing organic dye, and a reducing agent are inserted between layers of layered silicate. can be formed with

The case unit 30 is a component that accommodates and protects the sensing unit 20 , and may be coupled to the rope unit 40 . In this case, at least a part of the case unit 30 including the upper part may be formed of a transparent material so that the operator can intuitively grasp the color of the sensing unit 20 accommodated therein.

The case portion 30 may be positioned so as to be in contact with the bottom surface of the manhole structure F in a state in which the manhole cover portion 10 closes the receiving space f1 of the manhole structure F, and the manhole cover portion 10 ) can be moved upwardly spaced apart from the bottom surface of the manhole structure (F) by the operation of the operator to roll up the rope part 40 in a state in which the receiving space f1 of the manhole structure F is opened.

On the other hand, the state in which the aforementioned manhole cover portion 10 closes the receiving space f1 of the manhole structure F refers to a state in which the manhole cover portion 10 is seated on the manhole structure F, and the manhole cover portion ( The state in which 10) opens the accommodation space f1 of the manhole structure F refers to a state in which the manhole cover part 10 is spaced apart from the manhole structure F.

The rope part 40 connects the manhole cover part 10 and the case part 30 to help the operator raise the case part 30 upwards or lower it to the bottom surface of the manhole structure F. As a component, One end in the longitudinal direction may be coupled to the manhole cover portion 10 , and the other end may be coupled to the case portion 30 . At this time, the rope part 40 may be made of a fiber bundle.

The drum 50 (refer to FIG. 2) may be directly coupled to the lower surface of the manhole cover part 10, or may be indirectly coupled through a position adjusting unit 70 to be described later, and is rotatably supported by the rotating support 51, It is possible to wind and unwind the rope part 40 according to the rotation. At this time, the drum 50 may be automatically rotated by the operation of a motor (not shown) or may be manually rotated by a worker.

The pulley (60, see FIG. 2) may be directly coupled to the lower surface of the manhole cover part 10, or may be indirectly coupled through the positioning part 70, and is rotatably supported by the rotation support 52 to rotate It can guide the movement of the rope unit 40 accordingly.

For this reason, the present invention has a structure in which the sensing unit 20 is connected to the manhole cover portion 10 by the rope portion 40 and is located on the bottom surface of the manhole structure F, and the operator operates the manhole cover portion 10 After opening, the rope part 40 is wound around the drum 50 and the sensing part 20 is pulled upward to check the oxygen concentration in the lower part of the manhole structure (F).

2 is a bottom view of the manhole cover part 10 according to an embodiment of the present invention.

According to an embodiment of the present invention, the manhole cover for operation management operation management of the underground communication port is combined with the lower surface of the manhole cover part 10 and a position adjusting unit for adjusting the position of the drum 50 and the pulley 60 according to the rotation (70) may be further included.

Referring to FIG. 3 , the positioning unit 70 may include a rotation guide 71 , a rotation body 72 , and a closing cap 73 , and may further include a movement guide 74 and a movable body 75 . have.

The rotation guide 71 may be coupled to the lower surface of the manhole cover 10 through a fastener (not shown). The rotation guide 71 may be formed in a circular or polygonal plate shape, and the guide protrusion 711 may be coupled to the central portion of one surface.

The rotating body 72 is formed in a circular or polygonal flat plate shape, and the cross-sectional area thereof may be smaller than that of the rotation guide 71 , and a protrusion through-hole 721 through which the guide protrusion 711 passes may be formed in the central portion. At this time, the inner diameter of the protrusion through-hole 721 may be formed larger than the outer diameter of the guide protrusion 711 , and may be formed smaller than the outer diameter of the closing cap 73 . Accordingly, the rotating body 72 is rotatable about the guide protrusion 711 .

In addition, the rotating body 72 may be rotatably coupled to the drum 50 on one surface. At this time, the drum 50 may be positioned sufficiently spaced apart from the closing cap 73 so as not to interfere with the coupling and release of the closing cap 73 with respect to the guide protrusion 711 .

The closing cap 73 is screwed to the guide protrusion 711 to prevent separation of the rotating body 72 . In this case, the closing cap 73 may be located in the space between the drum 50 and the rotating body 72 .

The movement guide 74 is formed in the form of a circular or polygonal column extending in the longitudinal direction and may be coupled to one surface of the rotating body 72 to be positioned on the same line as the longitudinal central portion of the drum 50, one end of which is open. It may have an inner space 741 (refer to FIG. 8).

The movable body 75 is formed in the form of a circular or polygonal column extending in the longitudinal direction, and one end is inserted into the movement guide 74 to be slidably movable along the inner space 741 . At this time, the movable body 75 may have a longer length than the movement guide 74, and the pulley 60 may be rotatably coupled to one surface of the outwardly protruding portion of the movement guide 74, and the movement guide ( 74) may be provided with restraint means to prevent separation from it.

On the other hand, one surface of the above-described rotation guide 71, one surface of the rotating body 72, and one surface of the movable body 75 are in a state in which the manhole cover part 10 closes the receiving space f1 of the manhole structure F. It may be a downward facing side.

The operator places the rope part 40 on the pulley 60 in a state in which the manhole cover part 10 is separated from the manhole structure F, and then rotates the drum 50 to pull the case part 30 upward. can be raised In this case, the operator may rotate the rotating body 72 so that the pulley 60 is positioned toward the receiving space f1, and the moving body 75 is moved so that the pulley 60 is positioned above the receiving space f1. It can be partially withdrawn from the guide 74.

Due to the formation of the position adjustment unit 70 as described above, the present invention not only facilitates the process of raising the case unit 30 toward the ground and lowering it toward the bottom surface of the manhole structure F, but also removes the case unit 30 . In the process of raising and lowering, the rate of collision with the wall of the manhole structure (F) may be reduced. That is, damage to the case unit 30 due to a collision and discoloration of the sensing unit 20 may be reduced.

4 is a plan view of the case portion 30 and the rope portion 40 according to an embodiment of the present invention.

The rope part 40 may include a main rope 41 coupled to the manhole cover part 10 and a plurality of extension ropes 42 branched from the main rope 41 and coupled to the case part 30 . have. At this time, in the drawings of the present invention, but is shown for the four extension ropes 42, but is not limited thereto.

The main rope 41 may be positioned on the same line as the imaginary central axis of the case part 30 , and the plurality of extension ropes 42 are radially arranged around the main rope 41 to the case part 30 . can be coupled to

For this reason, in the present invention, the case part 30 suspended from the rope part 40 can be leveled while the operator raises the case part 30 upward through the rope part 40 or lowers it downward.

Referring to FIG. 5 , the case part 30 includes a lower plate 31 , a middle plate 32 positioned above the lower plate 31 , and an upper plate 33 positioned above the middle plate 32 . may include In this case, the imaginary central axis of the lower plate 31 , the middle plate 32 and the upper plate 33 may coincide with each other.

The lower plate 31 may be formed in a circular or polygonal plate shape, and a plurality of vertical supports 311 may be coupled at a radial position based on the central portion of the upper surface.

The vertical support 311 is formed in a circular or polygonal column shape in which the cross-sectional area of the upper end 3112 is larger than the cross-sectional area of the lower end 3111, and the lower end 3111 is coupled to the upper surface of the lower plate 31 and the middle plate 32 ), and the upper end 3112 may be located on the upper side of the middle plate 32 . In this case, the height of the lower end 3111 of the vertical support 311 may be higher than the height of the partition wall 321 .

The middle plate 32 may be formed in a circular or polygonal plate shape, and a partition wall 321 forming an inner space 3211 having an open upper portion on the upper surface may be coupled thereto. At this time, the sensing unit 20 may be seated in the inner space 3211 , and a virtual central axis of the inner space 3211 may coincide with a virtual central axis of the central plate 32 .

In addition, the central plate 32 may have a plurality of extension ropes 42 coupled to the outside from the central portion of the partition wall 321 , and a support through hole 332 through which the vertical support 311 passes may be formed. At this time, the support through-hole 332 has a cross-sectional area wider than the cross-sectional area of the lower end 3111 of the vertical support 311, and may be formed to have a narrower cross-sectional area than the cross-sectional area of the upper end 3112 of the vertical support 311.

That is, the lower plate 31 may move toward or away from the central plate 32 by the height of the lower end of the vertical support 311 .

The upper plate 33 may have a rope through hole 331 through which the extension rope 42 passes, and may be formed at a radial position with respect to the central portion. That is, the extension rope 42 may pass through the upper plate 33 and be coupled to the middle plate 32 .

The inner diameter of the rope through hole 331 is formed to be larger than the outer diameter of the extension rope 42 , and the upper plate 33 can move up and down along the extension rope 42 .

The upper plate 33 may be supported by the partition wall 321 (see FIG. 5 ) or supported by the vertical support 311 depending on the distance between the upper surface of the lower plate 31 and the lower surface of the middle plate 32 . There is (see Fig. 6). At this time, when the upper plate 33 is supported by the partition wall 321, the inner space 3211 can be closed, and when the upper plate 33 is supported by the vertical support 311, the inner space 3211 is to be opened can

That is, according to the elevation of the lower plate 31 with respect to the central plate 32 , the upper plate 33 is pushed up by the vertical support 311 to open the inner space 3211 , or the upper plate 33 ) may be supported by the partition wall 321 to close the inner space 3211 .

In other words, the case portion 30 may have a structure in which the inner space 3211 is opened and closed by the lower plate 31 that can be lifted.

5 is a cross-sectional view of the case portion 30 and the rope portion 40 according to an embodiment of the present invention, showing a state in which the lower plate 31 is lowered with respect to the middle plate 32 . Such a state may be a state in which the case portion 30 is suspended in the air by the rope portion (40).

6 is a cross-sectional view of the case portion 30 and the rope portion 40 according to an embodiment of the present invention, showing a state in which the lower plate 31 is raised with respect to the middle plate 32 . In such a state, the case portion 30 may be in contact with the bottom surface of the manhole structure (F).

That is, in the present invention, the manhole cover portion 10 closes the receiving space f1 of the manhole structure F, and the case portion 30 is in contact with the bottom surface of the manhole structure F, the case portion 30. In a state in which the inner space 3211 of the can be opened, the case part 30 is moved upward toward the ground by the rope part 40, or is moved downward toward the bottom surface of the manhole structure (F), the case The inner space 3211 of the part 30 may be closed. Due to this, the present invention can be prevented from discoloration in the process of moving the sensing unit 20 toward the ground from the lower portion of the manhole structure (F).

7 is an exemplary view of the use of a manhole cover for operation management of an underground communication area according to an embodiment of the present invention, and shows a closed state of the accommodation space f1 of the manhole structure F. As shown in FIG.

In a state where the manhole cover part 10 closes the accommodation space f1 of the manhole structure F, the rope part 40 is sufficiently unwound so that the case part 30 comes into contact with the bottom surface of the manhole structure F. can At this time, the movable body 75 can be inserted as much as possible into the movement guide 74 .

The case part 30 in contact with the bottom surface may have an inner space 3211 open as shown in FIG. 6 , and the sensing unit 20 located in the inner space 3211 detects the oxygen concentration in the lower portion of the accommodation space f1 . can do.

Figure 8 is an exemplary view of the use of a manhole cover for operation and management of an underground communication port according to an embodiment of the present invention, and shows an open state of the receiving space (f1) of the manhole structure (F).

Before proceeding to work in the receiving space f1 of the manhole structure F, the operator separates the manhole cover 10 from the manhole structure F, and the position adjustment unit 70 is located in the manhole cover 10 of the It is placed on the road surface S so that the lower surface faces upward. Thereafter, the operator rotates the rotating body 72 so that the pulley 60 is positioned adjacent to the receiving space f1, partially withdraws the moving body 75 from the moving guide 74, and removes the rope part 40 from the pulley. After being seated in (60), the drum 50 is rotated to raise the case part 30 located on the bottom surface of the manhole structure F to the upper side, and through the color of the sensing part 20, the receiving space f1 You can check the oxygen concentration.

The above description of the present invention is for illustration, and those of ordinary skill in the art to which the present invention pertains can understand that it can be easily modified into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a dispersed form, and likewise components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention.

1: Manhole cover for operation management of underground communication port
10: manhole cover part
20: sensing unit
30: case part
40: rope part
50: drum
60: pulley

Claims (3)

And a manhole cover for opening and closing the accommodation space of the manhole structure,
a sensing unit for detecting oxygen concentration;
and a case part for accommodating the sensing part therein;
A rope part connecting the manhole cover part and the case part;
A drum rotatably coupled to the lower surface of the manhole cover part and winding and unwinding the rope part according to the rotation;
a pulley that is rotatably coupled to the lower surface of the manhole cover and guides the moving direction of the rope according to the rotation;
It is coupled to the lower surface of the manhole cover portion, comprising a position adjusting unit coupled to the drum and the pulley to adjust the position of the drum and the pulley,
The position adjustment unit,
a rotation guide coupled to the manhole cover part, and a guide projection protruding from the central part of one surface;
A protrusion through-hole through which the guide protrusion is penetrated is formed in the central portion to be rotatable around the guide protrusion, and a rotating body to which the drum is coupled to one surface;
a closing cap coupled to the guide protrusion to prevent separation of the rotating body;
a movement guide coupled to one surface of the rotating body and having an inner space with one end open;
One end is inserted into the movement guide, the sliding movement is possible along the inner space, characterized in that it comprises a movable body to which the pulley is coupled to one surface, a manhole cover for operation and management of the underground communication area. delete delete

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