KR100270336B1 - Connecting pipe for manhole - Google Patents

Abstract

PURPOSE: A manhole coupling device is provided to reduce a producing cost, to improve productivity by conveniently and firmly install a connect pipe on a manhole and to prevent infiltration of waste water by closely adhering the connect pipe and a lay pipe. CONSTITUTION: A connect pipe body having plural through holes is installed on a side wall face of a manhole. Plural connect pipes(10a) mounted on each through hole of the body is made of epoxy foam and connected to a lay pipe(2) containing a cable engaged with a cable in a manhole. Moreover, the connect pipe forms an opening unit on a side end portion, and cylinder shaped PVC(Polyvinyl Chloride) closed by a waterproof plate(12). Thereby, the connect pipe is shortly formed and integrated with the lay pipe to improve productivity. In addition, the connect pipe prevents waste water from flowing into the body by resilient force of the gasket while the lay pipe is slantly buried.

Description

Manhole Connection

The present invention relates to a manhole connecting device for connecting the manhole and the pipe buried in the ground, in particular, even when the buried pipe is introduced with a predetermined inclination angle manhole connecting device to prevent the sewage of the ground flow into the manhole It is about.

In general, the buried pipes that enter or exit the manholes are connected through connecting sleeves formed so that their ends protrude long out of the manholes. Such a conventional manhole connecting sleeve is used when the buried pipe is drawn obliquely into the connecting sleeve due to an underground obstacle, removing the protruding portion of the connecting sleeve, drawing the manhole wall, and then connecting the incoming pipe. .

However, the conventional manhole connecting sleeve as described above, because it protrudes long to the outside of the manhole is likely to be damaged when the soil is refilled, productivity is reduced because the manhole body and the connecting sleeve must be produced separately during the manhole manufacturing And, the manufacturing cost is increased, in the case of the buried pipe that is drawn obliquely there was a problem that the connection sleeve and the connection is not easy.

In addition, when the buried pipe is not firmly bound to the connecting sleeve, there is another problem in the leakage phenomenon and the buried pipe is separated.

Therefore, the present invention has been made in order to solve the above problems, it is easy to be firmly attached to the freezing pipe is made in the manhole, so as to improve productivity, reduce manufacturing costs, as well as the connection pipe and buried pipe The object is to provide a manhole connecting device that is firmly adhered to prevent the penetration of sewage.

Perspective view showing a manhole equipped with a plurality of connecting devices according to the present invention.

Figure 2 is a schematic cross-sectional view showing the state of use of the connector for the manhole according to the invention.

Figure 3 is a cross-sectional view showing a connector for the manhole according to the invention.

4 is a cross-sectional view showing a sleeve gasket according to the present invention.

* Explanation of symbols for main parts of the drawings

1: manhole 2: buried pipe

10: connector body 10a: connector

11 opening 12 waterproof plate

13: bend 14: irregularities

15: gasket engaging jaw 16: protrusion

17: uneven 18: buried pipe jam jaw

20: gasket 21: locking jaw groove

22: elastic piece

In order to achieve the above object, the present invention is connected to the manhole, the connection pipe body is formed with a plurality of through holes; A connection tube mounted to each through hole of the connection tube body and having an opening for introducing a buried tube to one side thereof, and a waterproof plate provided at the other side thereof; And a gasket mounted inside the opening of the connection pipe, the gasket being in close contact with the buried pipe when the buried pipe is inserted therein.

Hereinafter, a preferred embodiment of a manhole connecting device according to the present invention will be described in detail with reference to FIGS. 1 to 4.

Manhole connecting device according to the present invention because it is firmly mounted to the manhole is not only to improve the productivity and manufacturing cost is reduced, but also to ensure the waterproof between the connection pipe and the buried pipe, as shown in Figures 1 to 3 As described above, a connector tube body 10 mounted on one side wall of the manhole 1 and having a plurality of through holes (6 in the illustrated example) and a plurality of connector holes mounted to each through hole of the connector body 10 is provided. Connector 10a. Each of the connecting pipes 10a is made of an epoxy foam, and a buried pipe 2 in which a cable to be connected to a cable inside the manhole 1 is embedded is coupled.

Here, each of the connecting pipe 10a has an opening 11 formed at one end thereof, and the other end thereof is made of a cylindrical PVC (Polyvinyl chloride) material sealed by a waterproof plate 12. When the connecting pipe 10a is mounted to the connecting pipe main body 10, the opening 11 of the connecting pipe 10a is positioned outside the manhole 1 so that the buried pipe 2 is drawn in. In this case, the waterproof plate 12 prevents sewage from penetrating into the manhole when the buried pipe 2 is drawn in. And, when the worker wants to connect the cable in the buried pipe (2) into the manhole (1) to connect with other cables, the waterproof plate 12 is broken by the worker.

On the opening 11 side of the connecting pipe 10a, a bent portion 13 is formed in which the diameter thereof is expanded by a predetermined size than the diameter of the waterproof plate 12 side, and a plurality of bent portions are formed on the outer circumferential surface of the bent portion 13 (not shown). In the example, four oblique concavities and convexities 14 are formed so that the connecting pipe 10a is firmly mounted on the manhole 1, and a plurality of hooks (four in the illustrated example) are formed on the inner circumferential surface of the bent portion 13. The jaw 15 is formed.

On the other hand, at the opening 11 side end of the connecting pipe 10a, a projection 16 having a semicircular cross section is formed along the inner circumferential surface of the connecting pipe 10a, so that when the buried pipe 2 is mounted inclinedly, It serves as a guide to be easily inserted into the connector body 10 while not being damaged.

On the outer circumferential surface of the connecting pipe 10a between the waterproof plate 12 and the bent portion 13, a plurality of unevennesses 17 are formed, and the connecting pipe 10a is formed in the manhole 1. When mounted, it delays the flow of sewage between the manhole 1 and the connecting pipe 10a.

In addition, the buried pipe catching jaw 18 is formed at the outer edge of the waterproof plate 12, and when the cable 12 in the buried pipe 2 is connected with the cable inside the manhole, the buried pipe 2 is formed. ) Is prevented from entering the manhole (1), and the cable is flexibly introduced into the manhole (1).

On the other hand, the present invention, as shown in Figure 4, the locking jaw groove 21 is pressed on the locking jaw 15 of the connecting pipe (10a) is formed on one side, a plurality (two in the example) on the other side The elastic piece 22 is further provided with a gasket 20 made of synthetic rubber material elastically in close contact with the buried pipe (2). Here, the synthetic rubber constituting the gasket 20 is made of a synthetic rubber and a vulcanizing agent.

Such a gasket 20 is mounted on the connecting pipe 10a by compressing the locking jaw groove 21 to the locking jaw 15, and when the buried pipe 2 is drawn in, even the buried pipe 2 is closed. Even when drawn obliquely, the elastic piece 22 is in close contact with the buried pipe 2 to prevent sewage from penetrating into the connection pipe 10a.

Preferably, the connecting pipe 10a and the gasket 20 may be integrally manufactured.

In addition, by forming the connecting pipe (10a) short, the manhole (1) and the connecting pipe can be manufactured integrally.

The present invention described above is not limited to the above-described embodiments and drawings, and various substitutions, modifications, and changes are possible without departing from the technical spirit of the present invention. It will be clear to those who have it.

As described above, the present invention has the effect of improving the productivity and reducing the manufacturing cost by forming the connecting pipe short and integrally formed with the buried pipe.

In addition, even when the buried pipe is drawn obliquely, there is another effect to prevent the sewage into the connector body by the elasticity of the gasket.

Claims (7)

A connector body mounted to the manhole and having a plurality of through holes formed therein; A connection tube mounted to each through hole of the connection tube body and having an opening for introducing a buried tube to one side thereof, and a waterproof plate provided at the other side thereof; And a gasket mounted inside the opening of the connection pipe and closely attached thereto when the buried pipe is drawn in. The manhole connecting device according to claim 1, wherein the connector is made of polyvinyl chloride (PVC). The connecting device of claim 1, wherein the connecting pipe further comprises a bent portion formed by extending a diameter of a predetermined portion of the opening side to provide a space in which the gasket is to be located. The connecting device for manhole according to any one of claims 1 to 3, wherein the connecting pipe further includes a plurality of concavities and convexities formed on the outer circumferential surface of the bent portion and compressed when the connecting pipe is coupled to the manhole. The plurality of locking projections according to any one of claims 1 to 3, wherein the connection pipe is formed on an outer circumferential surface between the opening and the waterproof plate to delay the flow of sewage between the manhole and the connection pipe. Manhole connecting device further comprising. The method according to any one of claims 1 to 3, wherein the connecting pipe is formed at an edge of the waterproof plate, and when the buried pipe and the connecting pipe are joined, the buried pipe penetrates the waterproof plate into the manhole. Mandrel connection device further comprising a buried jaw stopping jaw to prevent the introduction. The gasket according to any one of claims 1 to 3, wherein the gasket includes a plurality of elastic pieces formed on an inner circumferential surface of the gasket so that the buried pipe is elastically in close contact with the buried pipe. Manhole connection.

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