JP2001173080A - Manhole joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a manhole joint capable of simplifying cleaning and inspection for the interior of a sewage pipe connected to the manhole joint. SOLUTION: This manhole joint penetrating the upper side wall of a manhole to be provided in the manhole is so constructed that the tip of a pipe 1 positioned in the manhole 4 is provided with a cleaning port 1a and a closing lid 2 for closing the port, and the lower surface of the pipe 1 is provided with an auxiliary pipe fitting port 1b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a joint for a manhole provided in a manhole through a side wall of the manhole, and more particularly to a joint for a manhole provided with a cleaning port in a part of the joint located in the manhole. TECHNICAL FIELD The present invention relates to a joint for manholes, which can easily perform cleaning and inspection of a pipe connected to a manhole.

[0002]

2. Description of the Related Art Conventionally, in order to clean and inspect the inside of a sewer pipe buried underground, the entire manhole joint installed in a manhole and connected to the tip of the sewer is removed from the tip of the sewer pipe. I was doing these tasks.

[0003]

When cleaning or inspecting the above-mentioned conventional sewer pipe, the entire manhole joint must be removed from the sewer tip each time while paying attention not to damage the end of the sewer pipe. In addition, when connecting again, the connection work had to be performed while carefully aligning the sewer pipe and the manhole joint, and the work was troublesome and required time and labor for construction.

[0004]

SUMMARY OF THE INVENTION The present invention aims to provide a joint for manholes which solves the above-mentioned problems. The gist of the present invention is as follows: (1) For a manhole provided in the manhole through the upper side wall of the manhole. A joint, which is provided with a cleaning port and a closing lid for closing the pipe at the end of the pipe positioned in the manhole through the manhole side wall, and for a manhole provided with a sub pipe mounting port on the lower surface of the pipe. It is a joint. (2) The manhole joint according to (1) above, wherein a cleaning port is provided on the upper surface of the pipe at a position corresponding to the sub pipe mounting port.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a partial cross-sectional view of one embodiment of a T-shaped manhole joint, and FIG. 2 is a partial cross-sectional view of another embodiment of a cross-shaped manhole joint.

In the joint for a T-shaped manhole shown in FIG. 1, a pipe 1 is passed through an upper portion of a side wall 5 of a manhole 4, and the tip of the pipe 1 located outside the manhole 4 is connected via a short rib pipe 6a. It is connected to the sewer pipe 6. On the other hand, at the tip of the pipe body 1 located in the manhole 4, a cleaning port 1a is provided.
And a closing lid 2 for closing the cleaning port is attached.
Further, an attachment port 1b for the sub pipe 3 is provided on the lower surface of the pipe body 1 located in the manhole 4. The mantle joint of the present invention is firmly fixed to the manhole side wall 5 using a mortar 7 after sanding an outer peripheral portion of the tube 1 penetrating the manhole side wall 5 using a mortar 7.

The cross-shaped manhole joint shown in FIG. 2 has a connecting portion for a sewer pipe 6, a cleaning port 1a, and a mounting port 1b for the sub pipe 3 in the pipe body 1, similarly to the T-shaped manhole joint. . Further, in addition to these members, the mounting port 1 of the sub pipe 3
This is a structure in which a cleaning port 1c is provided on the upper surface of the tube 1 at a position corresponding to b.

Next, the cleaning and inspection work of the joint for manhole of the present invention will be described in detail. In the case of the T-shaped manhole joint shown in FIG. 1, only the closing lid 2 of the cleaning port 1a of the pipe body 1 is removed, and the inside of the manhole joint and the inside of the sewer pipe 6 connected thereto are inspected from the cleaning port 1a. After performing the cleaning operation, the closing lid 2 is attached to the cleaning port 1a again to complete the operation.

In the case of the cross-shaped manhole joint shown in FIG.
In addition to the inspection and cleaning work in the case of the T-shaped manhole joint, since the cleaning port 1c is also provided on the upper surface of the tube 1, it is possible to inspect the inside of the sub pipe 3 or perform the cleaning work from the cleaning port 1c. I can do it.

[0010]

When the manhole joint of the present invention is used, the entire manhole joint provided in a narrow manhole can be removed and reconnected after cleaning and inspection of the sewerage system pipe line as in the prior art. , The work before cleaning and inspection can be performed simply by removing only the closing lid 2 of the cleaning port of the joint for manhole located in the manhole, so that the working time can be easily and greatly reduced.

[Brief description of the drawings]

FIG. 1 is a partial sectional view of one embodiment of a joint for a T-shaped manhole of the present invention.

FIG. 2 is a partial cross-sectional view of another embodiment of the joint for a cross-shaped manhole of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pipe 1a, 1c Cleaning port 1b Sub pipe attachment port 2 Closure lid 3 Sub pipe 4 Manhole 5 Manhole side wall

Claims (2)

[Claims] 1. A manhole joint provided in a manhole penetrating an upper side wall of the manhole, wherein a cleaning port and a closing lid for closing the cleaning port are provided at a tip end of a pipe located in the manhole. A joint for manholes with a sub-tube attachment port provided on the lower surface of the tube. 2. The manhole joint according to claim 1, wherein a cleaning port is provided on an upper surface of the pipe at a position corresponding to the sub pipe mounting port.