JPH04208018A - Work method for sending cable, etc., into closed conduit drain pipe by air pressure - Google Patents

Abstract

PURPOSE:To clean the inside of a closed conduit drain pipe or the like by making a soft and light lead-in tool draw a line thereby sending it in to the top with high air pressure. CONSTITUTION:Though a soft and light air ball, which draws thread, string, or a thin wire, is sent in a closed conduit drain pipe 1, if a light lead-in tool 2 is sent so that the air may be vented by removing a relief well at the top of a buried pipe, the air ball can be passed drawing the thread deep by high air pressure. After the thin thread or string passes, a thin wire is passed and a current is applied to this wire, thus the existence of the buried pipe can be checked by the electric sensor on the ground. That is, to regenerate the effect the closed conduit drain pipe 1, a thin wire is sent deeply even in the place where there is no water by air pressure. Hereby, the inside of the closed conduit drain pipe 1 can be cleaned.

Description

DETAILED DESCRIPTION OF THE INVENTION Cleaning the inside of culvert drainage pipes to improve groundwater drainage and drying farmland is an essential part of agricultural management. - Even if culvert drainage work is carried out, its effects will not last forever.

This is due to the decay of rice husks buried underground and the stagnation of earth and sand in the pipes. This will not happen unless new construction is constructed for this purpose. This requires a lot of expense.

Pipe buried underground does not rot even after many years, so its effect can be regenerated by stagnation of earth and sand inside the pipe and replacing the rice husks placed outside the pipe with new ones.

In order to regenerate this pipe, a thin electric wire is passed through the underground pipe, and an electric current is passed through it.The position of the underground pipe can be confirmed from above ground using an electric sensor. In order to reproduce the effect of excavating rice husks and replacing the rice husks in the excavated trench, it became necessary to run electric wires through underground pipes. For this purpose, either a thread, string, or thin electric wire is pulled into the underdrain drain pipe after passing through soft, light air, and then sent into the pipe, or a light pulling tool is used that removes the water above the buried pipe and allows the air to escape. When the thread is sent through the air, the high pressure of the air allows the thread to be pulled deeply and penetrated. After the thin wire or string has passed, current is passed through the thin wire to the wire, and the location of the buried pipe can be confirmed on the ground using an electric sensor on the ground, so trench excavation can be done near the buried pipe without damaging it. I can do it.

In other words, in order to regenerate the effectiveness of the underdrain pipe, it is a construction method in which a thin electric wire is sent deep into the underdrain pipe using pneumatic pressure even in areas where there is no water.

This construction method will be explained.

■ is an underground drainage pipe, ■ is a wire feeding lead-in tool, ■ is a wire-wound shaft, ■ is a wire feeding reel, ■ is a lead-in line, ■ is the overall tank body, is the winding motor, is a pressure gauge, is the pipe hose, and is a joint pipe. It is a handle when carrying 0 line gauge 0. ■ High-pressure hose inlet 0 winding handle @ high-pressure handle Effects of this invention (a) By passing a line into the underground pipe, it is possible to clean the underdrain drain pipe.

Mouth: By digging a new groove around the pipe that has become ineffective as an underdrain and replacing it with new rice husks without damaging it, water in the ground will permeate and dry the fields. I can do it.

c) The above has the effect of reducing construction costs and restoring the effectiveness of underdrain drainage.

D. By replacing the thin current with a wire, attaching a rubber ball to one end of this wire, and pulling the wire through the pipe, stagnation of sediment can be completely removed.

E. Check the clogging of the water intake hole on the inner wall of the underdrain drain pipe.
By closing the water above and sending high pressure air, it is possible to open the underdrain pipe and completely regenerate the underdrain pipe.8 Fig. 1 is a block diagram of the present invention.

FIG. 2 shows a wire feeding tool containing the device.

Claims (1)

[Claims] It is used to clean the inside of underground drainage pipes, etc., or to run electric wires into the underground drainage pipes in order to excavate trenches around the underground pipes without damaging them. A construction method in which a light lead-in wire is pulled and the wire is fed to the tip using high pressure air.