JP2562373Y2 - Excess resin removal equipment for lining work - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a method of conveying a high-viscosity resin plug injected from one end of a pipe to a repair pipe such as a gas pipe or a water pipe buried underground at a constant speed by pneumatic pressure. The present invention relates to a surplus resin removing device that removes surplus resin adhering to a supply pipe take-out part in the middle of a repair pipe when performing a lining method for forming a thick and uniform lining film.

[0002]

2. Description of the Related Art In the lining method described above, both ends of a repair pipe are excavated on a road surface to be exposed, and a starting device is connected to one open end of the repair pipe, and a reaching device is connected to the other open end. . If the supply pipe branches off and is taken out in the middle of the repair pipe, temporarily install a pressure-resistant stopper on the take-out section to prevent the compressed air from being discharged from this take-out section and making the lining impossible. Close up. The starting device injects the resin into the repair pipe by compressed air and transports the resin plug by airflow.At this time, the resin moves while adhering to the inner wall of the pipe, and the resin is uniformly distributed over the entire length including the removal part of the repair pipe. Form a film. In addition, the arrival side device is operated so as to confirm the progress of the lining operation from the arrival state of the excess resin and to collect the excess resin.

For this reason, if there is a supply pipe take-out part in the middle of the repair pipe, the pressure-resistant stopper is removed in the post-processing after the lining method is performed. Then, in order to reopen the take-out portion closed by the resin film, it is necessary to remove the excess resin at that location.

Conventionally, there is a resin removing rod as a means for removing excess resin from a take-out portion of the supply pipe. An operator uses the resin removing rod to remove excess resin from the take-out portion with care so as not to fall into the pipe.

[0005]

However, in the above-mentioned prior art, the excess resin in the take-out portion of the supply pipe is manually removed by a worker using a resin removing rod. Very poor quality and difficult to remove cleanly. In addition, since a resin removing rod is inserted from the outside at the outlet to remove excess resin, the resin may protrude and remain like burrs inside the outlet, which causes an increase in pressure loss of the pipeline. There is a risk.

The present invention has been made in view of this point, and it is an object of the present invention to quickly and accurately remove excess resin from a supply pipe take-out section after a repair pipe lining method is applied.

[0007]

In order to achieve the above object, the present invention provides a hose inserted into a supply pipe take-out portion in the middle of a repair pipe after the repair pipe lining method is applied, and a hose attached to an end of the hose. And a manual resin suction pump that sucks and removes excess resin.

[0008]

According to the above construction, after the supply pipe is taken out of the supply pipe in the middle of the repair pipe and closed with a pressure-resistant stopper or the like, the hose is inserted and the resin suction pump is operated to quickly and clean the surplus resin. To be removed by suction.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, an outline of the entire apparatus used for carrying out a lining method for conveying a high-viscosity resin plug injected from one end of a pipe at a constant speed by air pressure and forming a thick and uniform lining film on the inner surface of the pipe. To explain,
Reference numeral 1 denotes a gas pipe buried at a predetermined depth in the soil a,
It is a repair pipe such as a water pipe. The repair pipe 1 is formed by excavating the soil a at both ends to form an excavation hole b, so that both ends are opened and exposed. When there is a supply pipe take-out part 2 in the middle of the repair pipe 1, a pressure-resistant stopper 3 is attached to the take-out part 2 so as to temporarily close the opening. The start-side device 10 is provided at one open end 1a of the repair pipe 1, and the arrival-side device 20 is provided at the other open end 1b.

In the starting apparatus 10, an air cylinder 11 storing compressed air, a regulator 12 for reducing air pressure, a control device 13, and a pneumatic nozzle 14 are sequentially connected by a pressure-resistant hose 15. Then, in the case of an operation check operation before the lining method is performed, an operation check jig 18 is attached to the tip of the pneumatic nozzle 14. When the lining method is performed after normal operation is confirmed, a resin injection pipe 17 is connected between the launcher 16 at the open end 1a of the repair pipe 1 and the pneumatic nozzle 14.

The arrival side device 20 is an open end 1b of the repair pipe 1.
The resin discharge hose 23 is connected to the receiver 21 via a lining jig 22. An end of the resin discharge hose 23 is connected via a valve 24 to a resin receiving / deodorizing device 26 provided with an exhaust hose 25.

Further, as a post-processing operation after the lining method is carried out, a surplus resin removing device 30 is mounted at the pressure-resistant stopper 3 of the take-out portion 2 of the supply pipe.

Referring to FIG. 2, the supply pipe take-out portion 2, the pressure-resistant stopper 3, and the excess resin removing device 30 will be described in detail. A service pipe 5 is attached to a take-out port 1c provided in the middle of the repair pipe 1 by using a clamp 4, and a supply pipe 6 branches out the gas and the like to the service pipe 5. Linked to Here, since the service tee 5 has the cap 5a removably attached thereto, the pressure-resistant stopper 3 is configured so that the cap 5a is detached and fitted tightly inside the service tee 5 to firmly close the inlet port 5b. Have been.

The surplus resin removing device 30 is a service
, A transparent hose 31 having the same diameter as the inlet port 5b, and a manual resin suction pump 32 attached to an end of the hose 31. Then, by inserting the hose 31 into the inlet port 5b of the service tee 5 and operating the pump 32, excess resin accumulated between the inlet port 5b and the outlet 1c of the repair pipe 1 is suctioned and removed. I have.

Next, the operation when the lining method of this embodiment is performed will be described. First, as a preliminary preparation before the enforcement, the pneumatic nozzle 1
An operation check jig 18 is attached to the tip of the device 4, and in this state, the starter 10 is actually operated to check whether the operation is normal. Then, when the normal operation of the starting device 10 is confirmed, the lining method is actually performed, and the operation in this case will be described.

First, the operation confirmation jig 3 is provided from the pneumatic nozzle 14.
Then, a resin injector 17 filled with resin is attached between the pneumatic nozzle 14 and the launcher 16 as shown in FIG.
When the supply pipe 6 has a take-out part 2 in the middle of the repair pipe 1, as shown in FIG.
a is removed, and the pressure-resistant stopper 3 is fitted therein to close the inlet port 1c. Thereby, the opening in the middle of the repair pipe 1 is easily closed, and the lining work can be performed.

Thereafter, the air cylinder 11 is opened to release the compressed air c.
Is supplied, the compressed air c acts on the resin of the resin injector 17 at a high pressure by the pneumatic nozzle 14, whereby the resin is injected into the repair pipe 1. Then, the resin plug d of the resin mass is transported by airflow into the pipe, and at this time, the resin moves while adhering to the inner wall of the pipe to form a resin film e.

In this case, when the resin plug d is large and the resistance is large, the air pressure is high, and when both of the resin plugs d decrease, the air pressure is reduced by the control device 13 so that the lining speed is controlled to a constant lining speed. The film e is formed uniformly. If the resin runs out and the resin blows through, the control device 13 automatically stops, and the resin injector 17 is replaced with a new one and restarted. Then, due to the nature of the resin, the lined section inside the repair pipe 1 passes through, and the resin starts to adhere from a place that has not yet been treated, and the formation of the resin film e is restarted.

Thus, by repeating such an operation several times, the resin film e is formed over the entire length of the inner wall of the repair pipe 1 and the repair pipe 1 is lined. At the time of this lining, the pressure-resistant stopper 3 is fitted to the service tee 5 at the take-out part 2 of the supply pipe 6, so that the excess resin f is formed as shown in FIG.
From the outlet 1c of the repair pipe 1 enter the clamp 4 and accumulate.

On the other hand, when the lining of the repair pipe 1 is completed, the excess resin plug d
It is confirmed that the air enters the resin discharge hose 23 through the smoothing lining jig 22 from 1 and air flows out from the smoothing lining jig 22. So in this case the valve 24
Is closed, the progress of the resin plug d is stopped, and disturbance of the film surface due to air blow-through is prevented. At this time, the supply of the compressed air is stopped by the starting device 10 at the same time, thereby preventing the application of excessive air pressure.
Thus, the operation is completed.

After the lining method described above is performed, the pressure-resistant stopper 3 is removed from the service tee 5 at the outlet 2 of the supply pipe 6. Then, as shown in FIG. 3B, the hose 31 of the excess resin removing device 30 is inserted into the inlet port 5b of the service tee 5, and the resin suction pump 32 is used.
Is manually operated by suction. Then the outlet 1c of the repair pipe 1
The portion between the inlet port 5b and the outlet 1c in the surplus resin f accumulated inside the clamp 4 is sucked and removed by the pump 32 at a time while visually checking with the transparent hose 31. As a result, a hole 7 penetrating between the outlet 1c and the inlet port 5b is formed as shown in FIG.
In this case, the excess resin f is removed from the inside of the repair pipe 1 to the outside by the pump suction force, so that the holes 7 are formed neatly without burrs or the like. After use, the pump 32 is not required to be cleaned by replacing the hose 31 filled with resin.

Although the embodiment of the present invention has been described above, the present invention is not limited to this.

[0023]

[Effects of the Invention] As described above, according to the present invention,
In the case where the repair pipe is implemented by the lining method, the excess resin in the take-out portion of the supply pipe is suctioned and removed by the pump operation after the execution, so that workability is greatly improved. Since it is a small manual resin suction pump, it is lightweight and easy to operate. By removing the excess resin by suction, it is possible to prevent the resin film from being disturbed at the outlet of the repair pipe, thereby preventing problems such as pressure loss.

[Brief description of the drawings]

FIG. 1 is a side view showing an entire apparatus of a lining method according to the present invention.

FIG. 2 is a sectional view showing an embodiment of a device for removing surplus resin for lining work according to the present invention;

FIG. 3 is a side view showing a lining of a supply pipe take-out portion and a state of removing excess resin.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Repair pipe 2 Supply pipe take-out part 5 Service tee 30 Excess resin removal device 31 Hose 32 Resin suction pump

Claims (2)

(57) [Scope of request for utility model registration] 1. A hose which is inserted into a supply pipe take-out portion in the middle of a repair pipe after the repair pipe lining method is applied, and a manual resin suction pump which is attached to an end of the hose and suctions and removes excess resin. An apparatus for removing surplus resin for lining work, comprising: 2. The apparatus for removing surplus resin for lining work according to claim 1, wherein the hose is inserted into the inlet port of the service tee instead of the pressure-resistant stopper.