KR100772683B1 - Assembly type precast manhole - Google Patents

Abstract

A connecting socket and an assembly type precast manhole for direction switching are provided to couple a connecting pipe to a manhole simply, and to switch the direction of the connecting pipe to be connected with a branch pipe. An assembly type precast manhole for direction switching comprises a manhole body(10), a connecting socket(20), and a connecting pipe(30). The manhole body has a connecting hole(11). The connecting socket is mounted with male expansion rubber sealing materials along the outer peripheral surface, and has one end with a coupling flange(23). The connecting pipe includes a body part(31) formed with a corrugated pipe part(32), a screw coupling part(34) screwed in the connecting socket, a coupling flange(33) coupled with the coupling flange, and a branch pipe connecting part(36) coupled with a branch pipe. A plurality of levers(35) is mounted to rotate the connecting pipe easily. The flange is formed along the outer peripheral surface of the connecting socket to be supported by inner and outer walls of the manhole body.

Description

Assembly type precast manhole for connecting socket and direction change

1 is an exploded perspective view showing a manhole of the present invention,

2 is a front view showing a connection socket and a connector of the present invention;

3 is a cross-sectional view showing a coupling state of the connection socket to the manhole body of the present invention,

4 is a cross-sectional view showing a coupling state of the connection socket and the connection pipe to the manhole body of the present invention;

5 is a cross-sectional view showing a redirection state of the connector of the present invention.

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

(10): manhole body (11): connector

(20): Connecting socket (21): Uneven groove

(22): threaded portion (23): coupling flange

(24): Flange (25): Water-expandable rubber resin

(26): Gasket

(30): connector 31: body

(32): corrugated pipe portion (33): coupling flange

(34): screwed portion (35): lever

(36): branch pipe connection (37): retainer

40: bolt 41: nut

50: branch line

The present invention relates to a connection socket and a prefabricated PC manhole for redirection, and more specifically, the coupling of the connection socket and the connection pipe installed in the connection hole of the manhole body made of bolting coupling through the flange after the screw coupling is made easy It has a very strong coupling structure, so that it can be kept watertight without being damaged by strong external force, and it is possible to change the direction of the connector, so that it can be easily combined with the misaligned branch pipe. In providing a manhole.

In general, sewage pipes are buried from each discharge source to a sewage treatment plant in order to collect and reprocess domestic sewage or factory sewage.

A manhole is formed at each predetermined section of the sewer pipe, and the manhole is inspected and cleaned through the manhole, and the manhole plays a role of allowing rainwater and the like to flow into the sewer pipe at the same time. .

In order to install a conventional manhole, a site casting method in which a concrete is placed at a location where a manhole is to be installed and constructed in the field, and an installation method using a PC (precast) manhole are used.

However, the site casting method has a problem of lengthening the construction period due to prolonged civil complaints and concrete curing periods in places where quality control and complex urban centers and traffic jams are severe.

In addition, PC manholes are in the spotlight due to the shortening of the construction period and the uniformity of quality control. However, existing PC manholes have leaks with the connecting pipes connected to the PC manholes, and the branch pipes to be connected are difficult to change the direction of the connecting pipes. If the direction of the misalignment with the branch line is very difficult to connect the connector.

The present invention is created in order to solve the conventional problems as described above, by coupling the connector by the screw coupling to the connection socket is installed in the manhole body so that the connection of the connector can be made easily, the outer peripheral surface of the connector The handle can be easily rotated by forming a handle on the screw to make the screwing more convenient, and the connection socket and the prefabricated PC manhole for redirection can be connected so that the direction of the connecting pipe can be changed. In providing.

The present invention for achieving the above object is a manhole body is formed with a connection hole along the circumference; A connection socket which is integrally installed in the connection hole and is provided with a water-expandable rubber resin along an outer circumferential surface and a coupling flange is formed at one end thereof; Being connected to the connection socket, the body portion is formed in the center of the corrugated pipe to be able to change the direction, the screw coupling portion is formed in one end of the body portion screwed into the connection socket, and the screw coupling portion And a coupling flange formed in the circumferential direction of the body portion along a boundary of the body portion and coupled to the coupling flange of the connection socket, and a branch pipe connection portion formed at the other end of the body portion to which the branch wire tube is coupled. It is characterized by being.

In addition, it is characterized in that it further comprises a plurality of levers along the circumference of the body of the connector to facilitate the rotation of the connector.

In addition, the flange is further formed along the outer circumferential surface of the connection socket to be supported on the inner wall and the outer wall of the manhole body.

In addition, the outer circumferential surface of the branch pipe connecting portion is characterized in that it further comprises a water-expandable rubber resin and retainer.

In addition, by forming a plurality of uneven grooves on the outer circumferential surface of the connecting socket is characterized in that the adhesive strength and the inner surface of the connection hole is increased.

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

1 is an exploded perspective view showing a manhole of the present invention, Figure 2 is a cross-sectional view showing a joint structure of the manhole of the present invention,

A manhole body 10 having a plurality of connection holes 11 formed along a circumference, a connection socket 20 integrally installed in the connection hole 11 of the manhole body 10, and the connection socket ( It is composed of a connecting pipe 30 that is coupled to the 20 and is easy to connect the branch line pipe 50 to be connected to change the direction.

The manhole body 10 is manufactured in a precast manner and is formed in various shapes such as a cylindrical shape or a square shape, and is made of a reinforced concrete structure.

The connection socket 20 is provided with a water-expandable rubber index 25 along the outer circumferential surface, the water-expandable rubber index 25 is a water-expandable rubber index 25 when combined with the manhole body 10 By expanding and sealing the inside of the connection hole 11 is to ensure the watertightness of the manhole body 10.

In addition, the inner surface of the connection socket 20 has a screw portion 22 is formed so that the connection pipe 30 is screwed into the connection socket 20.

In addition, a coupling flange 23 is formed around one side end of the connection socket 20 to be tightened by the screwed connection pipe 30 and the bolt 40 and the nut 41 to enable more stable coupling. .

In addition, by forming a plurality of concave-convex grooves 21 on the outer circumferential surface of the connection socket 20 is to be combined to increase the coupling force inside the connection hole 11 while being integrated with concrete when forming the manhole body 10.

In addition, the flange 24 is formed on both sides of the connection socket 20 along the outer circumferential surface to install the connection socket 20 in the connection hole 11. Make sure it is supported by touching the outer wall.

The connection socket 20 is supported by the flange 24 as described above and is stably fixed to the inner wall and the outer wall of the manhole body 10 without being separated from the inside of the connection hole 11.

On the other hand, the connection pipe 30 is formed of a body portion 31 is formed with a corrugated pipe portion 32 in the center so as to be able to change the direction, and one side end of the body portion 31 of the connection socket 20 The screw coupling portion 34 screwed into the inside, and formed along the boundary of the screw coupling portion 34 and the body portion 31 in the circumferential direction of the body portion 31, the coupling flange of the connection socket 20 Coupling flange 33 is coupled to the 33 by the bolt 40 and the nut 41, and branch line connecting portion 36 is formed by the other end of the body portion 31 is the branch line pipe 50 is coupled Is made of.

The corrugated pipe part 32 has a corrugated pipe shape, and when the connection between the connecting pipe 30 and the branch line pipe 50 is not easy, the direction of the connecting pipe 30 is changed through the corrugated pipe part 32 to the manhole and the manhole. When the linear change of the branch line tube 50 is made to be easily connected.

In addition, a plurality of levers 35 are provided at predetermined intervals along the circumference of the body portion 31, and the connecting pipes are connected to the threaded portions 22 of the connecting sockets 20 by the provided levers 35. When combining the 30 and the operator rotates by holding the lever 35, the screw portion 22 and the screw coupling portion 34 is to be engaged to rotate the coupling pipe 30 can be easily coupled.

In addition, after the connection pipe 30 is screwed into the connection socket 20, the coupling flange 23 and 33 of the connection pipe 30 and the connection socket 20 are in contact with each other, so that the bolt 40 and the nut 41 Fixed to), but the gasket 26 is inserted between the coupling flanges 23 and 33 so that watertightness is made more closely.

In addition, by attaching the water-expandable rubber resin material 25 and the retainer 37 to the outer circumferential surface of the branch pipe connection part 36 to be in close watertight with the branch pipe 50 fitted to the outer circumferential surface and to prevent backflow do.

In addition, one side end of the branch pipe connection portion 36 is formed to be tapered to facilitate the coupling of the branch pipe (50).

On the other hand, the present invention by connecting the branch pipe 50 to the outer peripheral surface of the branch pipe connecting portion 36 as described above, without being limited to the type and shape of the branch pipe 50, the connection is free and can be connected to any pipe.

In more detail, the branch line tube 50 coupled to the branch line connecting portion 36 is formed in a different thickness and shape depending on the type of tube, but the inner diameter of the branch line 50 is irrespective of the thickness of the tube or the shape of the outer diameter. Since the pipes are formed in the same tolerance to be coupled, it is possible to couple the various branch pipes 50 to the outer circumferential surface of the branch pipe connecting portion 36.

In addition, even if the branch pipe 50 is coupled by the water-expandable rubber resin material 25 and the retainer 37 attached to the outer circumferential surface of the branch pipe connection part 36, the watertightness is made tight and prevents backflow. .

On the other hand, when connecting the branch line 50 to the connecting pipe 30, PE products are typically bonded by electrofusion bonding, SUS band bonding, PE band bonding, sleeve bonding, etc., in the case of steel pipe products bands and sockets Combined in a way, in the case of concrete pipes can be combined by integration through the socket and mortar.

Referring to the installation method and the effect of the present invention configured as described above are as follows.

First, the manhole body 10 and the connection socket 20 of the present invention are integrally molded and placed on a site to be moved to the site.

When the installation of the manhole body 10 in which the connection socket 20 is integrally installed is completed, the connection socket 30 is screwed while rotating the connection pipe 30 through the screw part 22 formed in the connection socket 20.

At this time, the operator grasps the handle and rotates the connection pipe 30 so that the screw coupling portion 34 of the connection pipe 30 is screwed to the screw portion 22 of the connection socket 20.

Then, when the coupling flange 23 of the connection socket 20 and the coupling flange 33 of the connection pipe 30 abut, the connection socket 20 and the coupling flange (using the bolt 40 and the nut 41) ( 23) are firmly combined. Of course, at this time, the gasket 26 is inserted into and coupled between the coupling flanges 23 to achieve watertightness.

Then connect the branch pipe 50 to the connector 30, the linear between the manhole and the manhole is changed so that the branch pipe 50 can not be directly connected to the connector 30 corrugated pipe portion 32 Through appropriately changing the direction of the connection pipe 30 through the coupling of the branch pipe 50 to the connection pipe 30, the manhole body 10 and the pipe back to complete.

As described above, in the present invention, the manhole body 10 and the connection socket 20 are integrally formed so that the connection socket 20 is coupled to the inside of the connection hole 11 of the manhole body 10 more firmly and watertightly. There is no need to install a separate connection socket 20 in the construction time will be very shortened.

In addition, the coupling socket 20 and the coupling pipe 30 is coupled to the screw coupling method, the coupling of the coupling pipe 30 by tightening the bolt 40 and the nut 41 through the coupling flange 23, 33. Very simple and of course, the bonding strength is very strong, so that the watertightness can be stably maintained without being damaged by the external force generated during the backfilling process.

In addition, even when the linearity of the pipe is misaligned by the corrugated pipe part 32, the direction of the connecting pipe 30 is changed to be combined with the branch line pipe 50.

The present invention is not limited to the above-described specific preferred embodiments, and various modifications can be made by any person having ordinary skill in the art without departing from the gist of the present invention claimed in the claims. Of course, such changes will fall within the scope of the claims.

The effect of the present invention can be expected by the configuration and action as described above, the coupling of the connection socket and the connection pipe is made of a screw coupling method can be easily and quickly coupled construction time is shortened, the coupling flange after screw coupling It is combined with bolts and nuts, so the coupling strength is very strong to prevent leakage phenomenon of the connection part, and the direction can be changed by the corrugated pipe part so that it is easy to connect with the branch pipe, and it is attached to the branch pipe coupling part when it is combined with the branch pipe. It is a very useful invention for preventing watertightness and backflow by the water-expandable rubber resin and retainer.

Claims (5)

Manhole body is formed with a connection hole along the circumference; A connection socket which is integrally installed in the connection hole and is provided with a water-expandable rubber resin along an outer circumferential surface and a coupling flange is formed at one end thereof; Being connected to the connection socket, the body portion is formed in the center of the corrugated pipe to be able to change the direction, the screw coupling portion is formed in one end of the body portion screwed into the connection socket, and the screw coupling portion And a coupling flange formed in the circumferential direction of the body portion along a boundary of the body portion and coupled to the coupling flange of the connection socket, and a branch pipe connection portion formed at the other end of the body portion to which the branch wire tube is coupled. Connection socket and redirection prefabricated PC manhole, characterized in that it is. The method of claim 1, Connection socket and redirection prefabricated PC manhole, characterized in that it further comprises a plurality of levers along the circumference of the body of the connector to facilitate the rotation of the connector. The method according to claim 1 or 2, Forming a flange along the outer circumferential surface of the connecting socket further comprises a connection socket and redirection prefabricated PC manhole, characterized in that supported on the inner wall and outer wall of the manhole body. The method of claim 1, Connection socket and redirection prefabricated PC manhole, characterized in that it further comprises a water-expandable rubber resin and retainer on the outer peripheral surface of the branch pipe connection. The method of claim 1, Forming a plurality of uneven grooves on the outer circumferential surface of the connecting socket, the connection socket and redirection prefabricated PC manhole, characterized in that to increase the adhesive strength with the inner surface of the connection hole.

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