JP2939864B2 - Rehabilitation method of sewage basin and equipment used for it - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention prevents sewage from flowing into a sewage basin such as when repairing a sewage basin in which sewage discharged from an apartment house or the like continuously flows in, and efficiently repairs the sewage. The present invention relates to a method for implementing the method and an instrument used for the method.

[0002]

2. Description of the Related Art When a sewage basin is used for many years, concrete is attacked by chemicals such as acids and alkalis contained in sewage flowing into the sewage basin, causing partial holes or cracks, and sewage flows out therefrom. , There is a risk of polluting the surrounding environment. Therefore, it is necessary to inspect and repair the damaged state of the sewage basin at regular intervals, but the sewage basin must be emptied for the repair.

[0003] In the case of individual household sewage basins, it is also possible to manage the sewage basin so as not to discharge domestic sewage and to inspect or repair the sewage basins in the meantime. Since various kinds of sewage flows in, it was almost impossible to completely prevent the inflow and empty the sewage basin, and it was not possible to carry out inspection and repair of the sewage basin effectively.

Therefore, the present inventor has studied variously, and attached a drum-shaped device to a pipe for discharging sewage into a sewage basin, and allowed the sewage discharged from the pipe to flow out to the outside by the drum-shaped device, thereby forming a sewage basin. During repair, a method was developed to prevent sewage from flowing into the sewage basin, and a patent application was filed as Japanese Patent Application No. 7-44955.

[0005]

The construction method of the above-mentioned patent application is very innovative and practical, but has the following problems. It is difficult to treat sewage flowing from many pipes in one place. When the small tube of the drum-shaped instrument is clogged with dirt, it is difficult to treat. It is not possible to pump up the drainage from the drum-shaped equipment from the sewage basin side in the rehabilitation work of the sewage basin. The present invention solves any of these problems,
Without stopping the flow of sewage in the piping leading to the sewage basin,
It is an object of the present invention to provide an efficient construction method in which a sewage basin can be emptied and its repair can be easily performed.

[0006]

Means for Solving the Problems The present inventor has proposed a drum-shaped instrument for sealing a pipe for discharging sewage into a sewage basin and discharging sewage flowing through the pipe through a small pipe provided therein. Attached, through the small pipes, in the construction method of draining the sewage discharged from the pipe to the outside and preventing the sewage from flowing into the sewage basin, a plurality of branch pipes are connected to the main pipe, and each of the branch pipes By using the water collector A provided with a valve to solve the above problems,
Also, on the suction side of the pump, there is a pipe with two branch pipes,
A water pipe B with a valve attached to each of the central part and the branch pipes sandwiching the central part is arranged, and a three-pronged pipe C with a valve attached to a non-pump side pipe on the drain side of the pump. The present invention has been found to solve the above-mentioned problems by disposing, and to solve the above-mentioned problems by attaching a Y-tube D having the above-mentioned drum-shaped device inside a part of the above-mentioned piping. Achieved.

That is, according to the present invention, in the above-mentioned method, sewage flowing out from small pipes of a drum-shaped instrument attached to a plurality of pipes can be discharged to the outside by a pump through one water collector A. In this case, the main pipe of the water collector A is connected to the pump, and the branch pipe of the water collector A and the small pipe of the drum-shaped instrument are connected one by one, and the valve of the branch pipe connected to the small pipe is opened but connected to the small pipe. By keeping the branch pipe valve closed, wastewater from multiple pipes can be
It is possible to efficiently discharge to the outside.

Further, according to the present invention, in the above method, two pipes having two branch pipes are provided on the water suction side of the pump, and a valve is attached to each of the central pipe and the branch pipes sandwiching the central pipe. A water pipe B is disposed, and a three-pronged pipe C having a valve attached thereto is disposed on a drain side of the pump, a pipe on a side not connected to the pump, and one of the three-pronged pipe C having a valve attached thereto is passed through. The branch pipe on the small pipe side of the water pipe B is connected to the pump, and the branch pipe on the pump side of the water pipe B is also connected to the reserve water. By opening the valve on the drain side (non-water pipe B side) and closing the remaining valves, the waste water of the pipe discharged through the small pipe can be efficiently discharged to the outside through the pump. Congestion, etc.) Close the valves on the sewage drainage side (non-permeate pipe B side) of the lube and the three-pronged pipe C, open the remaining valves, pump the reserve water with the pump, and flow back to the small pipes through the three-pronged pipe C and the water penetrate B. Thereby, it becomes possible to remove the dirt clogged in the small tube.

Further, according to the present invention, in the above-mentioned method, when it is impossible to pump up the drainage from the drum-shaped equipment from the sewage basin side, such as when the sewage basin is completely renovated, the sewage basin should be positioned in front of the sewage basin. It is possible to excavate and attach a Y pipe D with the above-mentioned drum-shaped equipment inside a part of the pipe, and to pump up sewage flowing out of the pipe from the place away from the sewage basin through the Y pipe D. It becomes possible.

[0010] In this case, the Y pipe D has the above-mentioned drum-shaped device attached to a leg thereof, the leg being located on the non-sewage basin side of the above-mentioned pipe, and one branch pipe being connected to the sewage basin of the above-mentioned pipe. And the pump is connected to the small pipe of the drum-shaped instrument through the other branch pipe of the Y pipe D.

The drum-shaped instrument used in the present invention is attached to a pipe (or Y pipe) for discharging sewage,
Any structure may be used as long as the pipe (or Y pipe) is sealed and the wastewater in the pipe (or Y pipe) can be discharged to the outside only through the small pipe attached to the device. A product as disclosed in the specification of JP-A-7-44955, that is, a drum-shaped device comprising a cylindrical portion made of a rubber elastic film and a disk-shaped portion closing both ends of the cylindrical portion. A small tube is attached as a small tube so that both ends protrude from the drum-shaped device through the disk-shaped portion, and at least one of the disk-shaped portions is provided with an air stopper for blowing air into the inside of the drum-shaped device. It is preferable to use the attached one.

The drum-shaped apparatus disclosed in Japanese Patent Application No. 7-44955 is installed and used in a pipe for discharging sewage into a sewage basin such that its cylindrical portion is located along the inner circumference of the pipe. Air is blown into the inside of the drum-shaped device from the air tap, and the cylindrical portion is inflated so as to be in close contact with the inner periphery of the pipe, so that the sewage flowing out of the pipe can be discharged only through the small pipe of the drum-shaped device. A discharge pipe is attached to the outer end of the small pipe, and sewage can be discharged to the outside from the discharge pipe by a pump.

[0013]

FIG. 1 shows an example of the present invention. In this example, the water collector A, the water pipe B and the trifurcated pipe C, and the Y pipe D are all used, but these may be used separately according to the purpose.

Various types of sewage 4 flow into the sewage basin 1 of an apartment house or the like through a plurality of pipes 2. When the sewage basin 1 is repaired, the sewage basin 1 needs to be emptied. There is. Therefore, in this example, FIG.
Is attached, and the small pipe 7 of this instrument 3 is connected to the pump 12, so that the sewage 4 flows out through the small pipe 7 of the drum-shaped instrument 3 to the outside. It is possible to efficiently carry out repairs and the like without causing the sewage 4 to flow out of the system.

In order to efficiently treat the sewage 4 discharged from the plurality of pipes 2 by one pump 12, a water collector A is used. Tube 1
The main pipe 9 is connected to the pump 12, and the branch pipe 10 and the small pipe 7 of the drum-shaped instrument 3 are connected and used. I have.

In the use of the water collector A, the valve of the branch pipe 10 connected to the small pipe 7 of the drum-shaped instrument 3 is opened, and the other valves are closed. The sewage 4 from the plurality of pipes 2 can be efficiently discharged to the outside through the plurality of small pipes 7 connected to the pipe.

Next, in the case where the small pipe 7 of the drum-shaped instrument 3 is clogged and the waste water 4 cannot be discharged efficiently, in order to enable the small pipe 7 to be washed, the water pipe B is connected before and after the pump 12. A three-pronged pipe C is arranged through which sewage 4
It is good to be discharged outside. A water pipe B disposed in front of the pump 12 is provided with a valve 14 at a central portion and two branch pipes 13a and 13b located before and after the central portion.
c, 14a and 14b are attached, and the pump 12
The preliminary water 17 is connected to the branch pipe 13b located on the side of the pump 12, and the trifurcated pipe C disposed behind the pump 12 is connected to the pipes 15a, 15b on the non-pump side by valves 16a, 16b, respectively. Is installed, and the valve 16b
Is connected to the branch pipe 13a of the water pipe B on the small pipe 7 side.

Normally, the valve 14c at the center of the water pipe B
And the valve 16 on the sewage drainage side (non-water pipe B side) of the trifurcated pipe C
a is opened, and the remaining valves 14a, 14b, 16b are closed, so that the sewage 4 of the pipe 2 discharged through the small pipe 7 passes through the water pipe B, and is pumped out of the pipe 15a of the trifurcated pipe C by the pump 12. Is efficiently discharged to the small pipe 7
When it is difficult to discharge the sewage 4 such as when the sewage is clogged with filth, the valve 14c at the center of the water pipe B and the valve 16a on the sewage drain side (non-water pipe B side) of the three-pronged pipe C are closed. By opening the remaining valves 14a, 14b, 16b, the pump 1
2, water is absorbed by the pipe 2, the pipe 15b of the trifurcated pipe C, the branch pipe 13 of the water pipe B
Forcibly flow back through the small pipe 7 through the a, and the small pipe 7 can be washed.

When this washing is completed, the valve 14c at the center of the water pipe B and the valve 16a on the sewage drainage side (non-water pipe B side) of the three-way pipe C are opened again, and the remaining valves 14a, 1a are opened.
What is necessary is just to close 4b, 16b, and to discharge the sewage 4 outside.

Further, if the sewage 4 discharged through the small pipe 7 cannot be pumped up from the outlet of the pipe 2 to the sewage basin 1 due to the entire renovation of the sewage basin 1, a part of the pipe 2 In this place, a Y pipe D in which the drum-shaped instrument 3 is attached to the leg portion 18 is located, and the leg portion 18 is located on the sewage source side of the pipe 2, and one branch pipe 19 of the Y pipe D is It is arranged so as to be located on the side of the wastewater basin 1 of the pipe 2, and the wastewater 4 of the pipe 2
From the other branch pipe 20 of the Y pipe D through the small pipe 7,
It can be pumpable.

The pipes connecting the small pipe 7, the water collector A, the water pipe B, the pump 12, the trifurcated pipe C and the like for discharging the waste water 4 to the outside are made of commercially available rubber or plastic. Alternatively, a metal pipe may be used.

The drum-shaped instrument 3 used in this embodiment is
Although shown in FIG. 2, any form having the same function may be used.

The drum-shaped device 3 shown in FIG. 2 has a cylindrical portion 5 (rubber tube) made of a rubber-elastic film and a disk-shaped portion 6 (thick rubber plate) for closing both ends of the cylindrical portion 5. ), And a small tube 7 is attached so as to penetrate the disk-shaped part 6 so that both ends protrude from the drum-shaped equipment 3. An air tap 8 for blowing air is attached. The cylindrical portion 5 is joined to the disk-shaped portion 6 with good adhesion so that the air inside the drum-shaped noble portion 3 does not leak out.

The drum-shaped instrument 3 is installed in the pipe 2 (or Y pipe D) such that the cylindrical portion 5 is located along the inner periphery of the pipe 2 (or Y pipe D). By blowing air from 8 and inflating the cylindrical portion 5, the cylindrical portion 5 is fixedly disposed inside the pipe 2 (or Y pipe D) with good adhesion.
In this state, a discharge pipe such as a rubber pipe is attached to the outer end of the small pipe 7 of the drum-shaped instrument 3, and the sewage 4 can be discharged to the outside from the discharge pipe by the pump 10.

[0025]

According to the present invention, by installing the drum-shaped device 3 inside the pipe 2 for allowing the sewage 4 discharged from the apartment house or the like to flow into the sewage basin 1, the sewage 4 is transferred to the small pipe of the drum-shaped device 3. By pumping up through 7,
Since the wastewater can be discharged to the outside, the wastewater basin 1 can be emptied without stopping the drainage of domestic wastewater and the like, and the repair and the like can be carried out with good workability. One pump 12 can efficiently treat the sewage 4 flowing out of a large number of pipes 2, and in front of the pump 12,
A three-way pipe C in which a water pipe B allowing the inflow of the reserve water 17 is arranged, and the water pipe B and one of the branch pipes 15b are connected to the rear.
By disposing the valves, the water is caused to flow back to the small pipe 7 of the drum-shaped instrument 3 by operating these valves, thereby enabling the washing. Further, the drum-shaped instrument 3 is installed on the
By using the pipe D, the sewage 4 from the pipe 2 can be taken out without passing through the sewage basin 1.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing an example of the present invention.

FIG. 2 is a perspective view showing an example of a drum-shaped instrument used in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Sewage basin 2 Piping 3 Drum-shaped equipment 4 Sewage 5 Cylindrical part 6 Disk-shaped part 7 Small pipe 8 Air plug 9 Main pipe 10 Branch pipe 11 Valve 12 Pump 13a, 13b Branch pipe 14a, 14b, 14c Valve 15a, 15b Pipe 16a , 16b Valve 17 Reserve water 18 Leg 19 Branch pipe 20 Branch pipe

Claims (6)

(57) [Claims] 1. A pipe 2 for discharging sewage 4 into a sewage basin 1
A drum-shaped instrument 3 for sealing the pipe 2 and allowing the wastewater 4 flowing through the pipe 2 to be discharged through a small pipe 7 provided therein.
In a construction method in which the sewage 4 discharged from the pipe 2 is discharged to the outside by the pump 12 through the small pipe 7 and the sewage 4 is prevented from flowing into the sewage basin 1, a drum-shaped pipe attached to the plurality of pipes 2 is provided. The wastewater 4 flowing out of the small pipe 7 of the appliance 3 is discharged to the outside by one pump 12 through one water collector A, and the water collector A connects a plurality of branch pipes 10 to a main pipe 9. Each of the branch pipes 10 is provided with a valve 11, and the main pipe 9 is connected to the pump 1.
2. A method for repairing a sewage basin, comprising connecting the branch pipe 10 and the small pipe 7 to each other. 2. A pipe 2 for discharging sewage 4 into a sewage basin 1
A drum-shaped instrument 3 for sealing the pipe 2 and allowing the wastewater 4 flowing through the pipe 2 to be discharged through a small pipe 7 provided therein.
In a construction method in which the sewage 4 discharged from the pipe 2 is discharged to the outside by the pump 12 through the small pipe 7 and the sewage 4 is prevented from flowing into the sewage tub 1, the sewage 4 drained from the small pipe 7 is attached. But two branch pipes 13a, 13b
Water is absorbed by the pump 12 through a water pipe B having a valve. The two pipes 13a and 13b located between the center of the water pipe B and the water pipe B have valves 14c and 14a, respectively. 14b, and a trifurcated pipe C is disposed behind the drain port of the pump 12, and valves 16a, 16b are mounted on the non-pump side pipes 15a, 15b of the trifurcated pipe C, respectively. One of the pipes 15b to which the valve 16b is attached is connected to the branch pipe 13a on the small pipe 7 side of the water pipe B,
Further, since the branch pipe 13b of the water pipe B on the pump 12 side is connected to the spare water 17, when the small pipe 7 is clogged, the valves of the water pipe B and the trifurcated pipe C are opened and closed to open and close the valve. A method of repairing a sewage basin, characterized in that the spare water 17 is made to flow backward to wash the small pipe 7. 3. A drum-shaped device 3 is attached to a pipe 2 for discharging sewage 4 into a sewage basin 1, and through the drum-shaped device 3,
In the construction method in which the sewage 4 discharged from the pipe 2 is discharged to the outside by the pump 12 so that the sewage 4 does not flow into the sewage basin 1, the drum-shaped appliance 3 is mounted inside a part of the pipe 2. Attach Y tube D, and through Y tube D,
The Y-tube D attaches the drum-shaped device 3 to the leg 18 and discharges the sewage 4 flowing out of the small tube 7 of the drum-shaped device 3 to the outside. It is located on the sewage basin 1 side, and one branch pipe 19 is arranged so as to be located on the sewage basin 1 side of the pipe 2, and the other branch pipe 20 of the Y pipe D passes through the other branch pipe 20 of the drum-shaped instrument 3. A method of repairing a sewage basin, characterized in that the small pipe 7 and the pump 12 are connected. 4. The drum-shaped device 3 comprises a cylindrical portion 5 made of a rubber-elastic film and a disk-shaped portion 6 closing both ends of the cylindrical portion 5. 3, a small tube 7 is attached so that both ends thereof protrude from the drum-shaped device 3 through the disk-shaped portion 6, and at least one of the disk-shaped portions 6 has an inside of the drum-shaped device 3. 4. An air tap 8 for blowing air is attached.
Term construction method. 5. The method according to claim 1, wherein a plurality of branch pipes are connected to the main pipe, and each of the branch pipes is provided with a valve. Water collector. 6. The drum-shaped instrument 3 having the small pipe 7 is attached to the leg 18 of the Y pipe D, and the sewage 4 passing through the leg 18 is provided.
4. The device used in the method of claim 3, wherein the device can be discharged to the outside through the small tube 7.