KR20020095528A - A manhole coupling pipe of assembly - Google Patents

Abstract

PURPOSE: A connection pipe for a prefabricated manhole is provided to prevent a water leakage of a connection pipe and to improve the quality of a manhole. CONSTITUTION: The connection pipe for a prefabricated manhole contains an upper connection pipe(20) and a lower connection pipe(30) assembled by cutting lengthwise. The connection pipe is composed of a primary connection pipe and a secondary connection pipe diagonally or longitudinally, wherein several convex parts and concave parts are formed on a connection plane of the upper connection pipe(20) and the lower connection pipe(30).

Description

Prefab Manhole Connector {A MANHOLE COUPLING PIPE OF ASSEMBLY}

The present invention relates to a manhole connector, and more particularly to a prefabricated manhole connector embedded in the wall of the manhole to be used by connecting the buried pipe for cable protection.

In general, a communication or electric line network is provided with a manhole having an arbitrary space below the ground surface at regular intervals, and embeds a copper cable or an optical cable by embedding a tube having a predetermined diameter between the manhole and a neighboring manhole.

The manhole is used for maintenance management of the track network and buried pipe, and various devices are installed. Among them, buried pipes are parts manufactured with a limited length and are installed by connecting them according to the distance between the manholes. Therefore, the buried pipes should be installed so that moisture contained in the ground does not flow into the pipe, but moisture may be introduced through the joint part.

1 is a cross-sectional view of a conventional manhole connector, which is composed of a first connector 2 and a second connector 3.

A square outer connecting plate 4 is formed at one end of the first connecting pipe 2, and an inner connecting plate 5 is formed at a distance corresponding to the manhole thickness from the outer connecting plate 4.

The inner and outer connecting plates 5 and 4 are formed with penetrating threaded holes 5 'and 4', and therebetween, annular projections 6 are formed along the outer circumferential surface in the longitudinal direction.

And the second connecting pipe 3 is connected to the integral cylindrical like the first connecting pipe 2, the diameter of one end is formed larger than the diameter of the first connecting pipe (2).

The manhole construction of the connector thus constructed is embedded between the formwork and the formwork, and the embedding direction is connected at right angles to the manhole.

The connecting pipes installed in the manholes may be coupled to each other according to the required quantity, and the coupling means may be fixed to the threaded holes 5 'and 4' which pass through the formed inner and outer connecting plates 5 and 4, respectively. Join with an in bolt or nail.

However, the connector installed in this way is required to increase the size of the manhole continuously with the increase of the communication cable, or when the manhole stand and the object is required due to the decrease in durability due to the increase in the year of facility of the manhole. It becomes impossible to use.

The connector is not possible to stand the object of the manhole, and the new manhole is constructed while leaving the existing connector and the cable inserted in the connector. In this case, a leak occurs between the new manhole and the existing connector or the connector is broken. Most of the time you can not use.

Therefore, there is a problem that causes a safety accident of the worker as well as the communication quality.

Therefore, the present invention is to solve such a conventional problem, it is possible to assemble a new connector to the existing cable, it is an object to provide a prefabricated manhole connector that can be interconnected with the existing connector.

The present invention for realizing such an object is to be buried at the time of concrete pouring to connect the manhole and the buried pipe, the first connecting pipe formed with a square inner connecting plate and an outer connecting plate on both sides, and one side of the first connecting pipe A manhole connector consisting of a second connector integrally connected to the manhole connector; The first connector and the second connector is cut in the longitudinal direction consisting of an upper connection pipe and a lower connection pipe which are coupled to each other, a plurality of concave portions and recesses coupled to the coupling surface of the upper connection pipe and the lower connection pipe It provides a prefabricated manhole connector, characterized in that formed.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

1 is a cross-sectional view of a typical manhole connector.

Figure 2a is an exploded perspective view of the prefabricated manhole tube according to the present invention.

Figure 2b is a perspective view of the prefabricated manhole connector according to the present invention.

3 is a cross-sectional view taken along the line AA ′ of FIG. 2B;

4 is a cross-sectional view taken along the line B-B 'shown in FIG. 2B.

FIG. 5 is a partial cross-sectional view taken along line CC ′ shown in FIG. 2B. FIG.

Figure 6 is a side view showing a state in which a plurality of prefabricated manhole connector according to the invention coupled.

<Description of the symbols for the main parts of the drawings>

10 connector 12 first connector

14: second connector 20: upper connector

22, 24: 1st, 2nd convex part 30: lower connector

32, 34: 1st, 2nd recessed part 40, 42: upper and lower bolt flanges

41, 43: bolt holes 50, 52: upper and lower outer connecting plates

60, 62: upper and lower inner connecting plates 61, 63: inclined surface

70: connection hole 80: engaging projection

82: coupling groove

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

Figure 2a is an exploded perspective view of the prefabricated manhole tube according to the present invention, Figure 2b is a perspective view of the coupling of the prefabricated manhole tube according to the invention, Figure 3 is a cross-sectional view taken along line AA 'shown in Figure 2b, Figure 4 2B is a cross-sectional view taken along line B-B 'of FIG. 2B, and FIG. 5 is a partial cross-sectional view taken on line C-C ′ shown in FIG. 2B, and FIG. 6 is a view illustrating a state in which a plurality of prefabricated manhole connectors according to the present invention are combined. Side view.

As shown in FIG. 2A, the connecting pipe 10 including the first connecting pipe 12 and the second connecting pipe 14 is cut and assembled in a diagonal or horizontal length direction, and the lower connecting pipe 20 is assembled. It is formed of a connecting pipe (30).

3 and 4, the first convex portion 22 protruding downward is formed on the coupling surface of the upper connection pipe 20 in the length direction, and the width thereof is narrow depending on a predetermined interval therebetween. A second convex portion 24 having a protruding length longer than the first convex portion 22 is formed.

And the front-end | tip part of the 1st, 2nd convex part 22 (24) is formed in hemispherical shape.

Meanwhile, the first and second recesses 32 and 34 have the same width and length at the corresponding positions so that the first and second convex portions 22 and 24 may be inserted into the mating surface of the lower connection pipe 30. Is formed.

And upper and lower bolt flanges (40, 42) are formed at both ends and the middle portion for the secure coupling of the upper connection pipe 20 and the lower connection pipe (30). Each of the bolt holes 41 and 43 is formed in the upper and lower bolt flanges 40 and 42.

And the bolt hole 43 of the lower bolt flange 42 is formed with a diameter smaller than the diameter of the bolt hole 41 in order to increase the fastening force with the bolt.

In addition, referring to Figure 5, by separating the upper and lower connecting pipes 20, 30, the inner and outer connecting plate of the square, respectively, the upper and lower outer connecting plate 50, 52 and the upper and lower inner connecting plate, respectively (60) and (62).

The upper and lower outer connecting plates 50 and 52 and the upper and lower inner connecting plates 60 and 62 have the same shape, and descriptions thereof will not be repeated.

First, the front surface of the upper inner connecting plate 60 is in a planar state, and the rear surface thereof is formed with an inclined surface 61 inclined at a predetermined angle.

On the other hand, the lower inner connecting plate 62 has a rear surface in a flat state, and the front surface is formed with an inclined surface 63 opposite to the inclined surface 61.

In addition, a plurality of connection holes 70 are formed in order to increase the coupling force of the upper and lower inner connection plates 60 and 62, and the coupling protrusion 80 and the lower outer side are formed in the upper inner connection plate 60 around the center hole. The connecting plate 60 has a coupling groove 82.

The operation of the prefabricated manhole connector according to the present invention configured as described above is as follows.

As shown in Figures 2b and 6, the connector 10 is assembled as if the existing cable as it is wrapped around the cable.

The assembly centers the cable and then inserts a bond-like adhesive into the first and second recesses 32 and 34 of the lower connector 30.

Thereafter, the first and second convex portions 22 and 24 of the upper connection pipe 20 are coupled to each other in the correct position in such a manner that the adhesive does not flow outwardly.

And to increase the adhesive strength of the adhesive of the connecting pipe 10, the bolt is inserted into the bolt hole 41 of the butt-phase connecting bolt flange 40 butted for complete coupling, the bolt hole of the lower bolt flange 42 of reduced diameter Fasten to (43).

At the same time, the coupling protrusions 80 of the inner and outer connecting plates 60 and 50 are also coupled to the coupling grooves 82 of the inner and outer connecting plates 62 and 52 to increase the fastening force.

In this way, the number of connectors 10 of the required number to the connector 10 assembled while leaving the cable as it is coupled to each other.

First, after placing the connection pipe 10 assembled as described above, the inclined surface 61 of the other upper inner connecting plate 60 in the horizontal direction to overlap the inclined surface 63 of the lower inner connecting plate 62 to correspond to each other The connection holes 70 of each other are fastened with screws.

In the same coupling method, the inclined surfaces 61 and 63 corresponding to each other in the horizontal direction as well as in the vertical direction may be used to be combined with each other as necessary.

As the cable continues to be expanded, it is possible to assemble the cable while the manhole is expanded, mounted, or separated, leaving the cable intact, preventing leakage and arranging the arrangement of connectors.

In the above description, it should be understood that those skilled in the present invention can only make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

As described above, the prefabricated manhole connector according to the present invention can be easily installed when the manhole is enlarged or touched as a assembleable connector, and at the same time, it prevents water leaks into the connector, This has the effect of improving the quality of the manhole.

In addition, since the working environment in the manhole is improved, safety accidents such as harmful gases can be prevented in advance, and the working air can be shortened when the manhole is constructed.

Claims (6)

It is buried during concrete pouring and connects the manhole and the buried pipe, and includes a first connecting pipe having a square inner connecting plate and an outer connecting plate formed at both sides, and a second connecting pipe integrally connected to one side of the first connecting pipe. For manhole connectors; The first connector and the second connector is cut in the longitudinal direction consisting of an upper connection pipe and a lower connection pipe which are coupled to each other, a plurality of concave portions and recesses coupled to the coupling surface of the upper connection pipe and the lower connection pipe Prefab manhole connector, characterized in that formed. The method of claim 1; The convex portion and the concave portion are formed of first and second concave portions having different widths formed alternately at a predetermined interval, and first and second concave portions, and protruding outwardly on the mating surfaces of the upper and lower connection pipes. , Prefabricated manhole connector characterized in that a plurality of lower bolt flanges are formed. The method of claim 1; The upper and lower connection pipes, prefabricated manhole connector, characterized in that formed in the longitudinal direction of the diagonal with respect to the side of the square inner connection plate. The method of claim 1, The upper and lower connectors are prefabricated manhole connectors, characterized in that formed in the horizontal longitudinal direction based on the side of the square inner connecting plate. The method according to claim 1 or 2, Prefabricated manhole connector, characterized in that the front end portion of the first convex portion is formed in a hemispherical shape to increase the adhesive strength with the adhesive. The method of claim 1, Prefabricated manhole connector, characterized in that the inclined surface is formed on the edge of the inner, outer connecting plate to improve the assembling with other adjacent connecting tube.