JP2000301091A - Pig for cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance workability by providing the inside of a pig with a cavity part, building a battery and a motor in the cavity part, extending a revolving shaft of the motor to the outside of a main body, providing the same with a grinding tool and tying one end of connecting yarn wound on a reel to a counter side of the revolving shaft. SOLUTION: The inside of the main body 2 of the pig 1 is provided with the cavity part 3. The battery 4 and the motor 5 having the battery 4 as a power source are built into the cavity part 3. The revolving shaft 6 of the motor 6 is so positioned as to exist on the central axis of the main body 2 and its front end is extended to the outside. The grinding tool 7 is mounted replaceably to the extension part. The end of the connecting yarn 9 wound on the reel is connected to the rear part of the main body 2 and the movement of the main body 2 is controlled and pulled by the connecting yarn 9. According to such constitution, peeling, grinding and cleaning are executed by the rotation of the revolving shaft 6 from the motor 5 mounted with the grinding tool 7 according to the state of deposits, such as scale, on the inside wall surface of a pipe and, therefore, the peeling of the deposits may be sufficiently executed and the workability is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pig for a cleaner used for fluid management of pipes, and more particularly to a pig for a cleaner used for removing substances such as gaseous particles adhering to an inner wall of a pipe.

[0002]

2. Description of the Related Art For cleaning the inner wall of a pipe, there are many years of mechanical washing machines and high-pressure cleaning. Although chemical cleaning for removal is used, they have not achieved satisfactory results in meeting various requirements.

In addition, a cylindrical elastic body or a pig having a pin embedded in the outer peripheral surface thereof is inserted into a pipe body, and water pressure is applied to the cylindrical elastic body pig to propel the inside of the pipe so that the inside of the pipe is propelled. A cleaning method to peel off the attached scale and a motor and submersible pump built in the pig body that can run in the pipe,
The motor and the submersible pump in the main body are driven by remote control from the ground, the blades provided in front of the main unit and the wheels supporting the main unit are rotated by this drive, and the water in the pipe is moved by the submersible pump to the front blades and the main unit. Inject from the nozzle provided between
There is known a method of discharging adhered matter in a pipe separated by the blades by using jet water.

[0004]

According to the present invention, when the above-mentioned cylindrical pig is used, sufficient work of peeling off the inner wall surface of the pipe is not performed, and it takes time, and when the pin is used, the peeling of the peripheral surface is uniform. No. Furthermore, in the case of a cleaning pig that uses a motor and a submersible pump in the main unit, the power supply of the motor is on the ground and remote control using a lead wire, so it is complicated and troublesome to operate, and it is large and limited to large diameter pipes Is done. Therefore, it is not used for small diameters.

[0005]

SUMMARY OF THE INVENTION In view of such circumstances, the present invention, in order to solve this problem, in a pig formed of a foamed synthetic resin material having elasticity, the inside of the pig is provided with a hollow portion. The cavity has a battery and a main body with a built-in motor that uses the electric power as a power source.The rotating shaft of the motor extends outside the main body, and a replaceable grinding tool is provided in this extension. Further, a clean pig in which one end of a connecting yarn wound on a reel is bound to the opposite side of the rotating shaft to control a pig for pushing and feeding the pipe and pull the pig is provided. Things.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a cleaning pig according to the present invention will be described with reference to the drawings.

FIG. 1 shows a pig made of a foamed synthetic resin material having elasticity. The pig 1 has a main body 2 having a substantially drum-like shape with a cylindrical or arcuate outer periphery, and a hollow portion 3 inside the main body 2. A battery 4 and a motor 5 using the battery 4 as a power supply are built in the cavity 3. (The shape of the main body 2 is not limited.) In addition, the rotating shaft 6 of the motor 5 is located on the center axis of the main body 2 and its tip is extended to the outside. 7 is attached. (It can be replaced according to the state of the ground object.) The rear part of the main body 2 connects the ends of the connecting thread 9 wound on the reel 8, and controls or pulls the movement of the main body 2 by the connecting thread 9. To do.

FIG. 2 shows a state in which the pig 1 is inserted into the pipe P in the pipe for cleaning. The pig 1 is inserted from one end of the pipe P, and at the speed adapted by the connecting thread 9 or the like by air or liquid groove fluid. In addition to the propulsion, the cleaning is performed by peeling and grinding with the rotation of the rotating shaft 6 from the motor 5 equipped with the grinding tool 7 according to the state of the deposit such as the scale on the inner wall surface of the pipe. still,
In this case, the main body 2 may be connected to and connected to an auxiliary pig separately provided with an electric power and the like. If this auxiliary pig is connected, the use time can be prolonged accordingly.

[0009]

As described above, the pig of the present invention incorporates a battery and a battery-powered motor in the pig body, and the rotating shaft of this motor can be replaced with a grinding tool according to the cleaning condition. Therefore, it is possible to sufficiently peel off the attached matter such as the scale attached to the inner wall surface of the tube. Further, since the motor uses a battery built in the main body as a power source, it is not a power source from the outside such as the ground, so that the operation is not complicated and troublesome.
Therefore, it is excellent in workability and efficient. Further features are that it can be made smaller and can be used for small diameter tubes.

[Brief description of the drawings]

FIG. 1 is a longitudinal side view of an embodiment of a cleaner pig according to the present invention.

FIG. 2 is a partial cross-sectional view of the pig during cleaning of a pipe using the pig of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pig 2 Main body 3 Cavity part 4 Battery 5 Motor 6 Rotary shaft 7 Grinding tool 8 Reel 9 Connecting thread P tube

Claims (1)

[Claims] 1. A pig formed of a foamed synthetic resin material having elasticity, wherein a hollow portion is provided inside the pig, and the hollow portion has a battery and a main body containing a motor powered by the battery. Furthermore, the rotating shaft of the motor is extended outside, and a replaceable grinding tool is attached to this extended portion. One end of the connecting yarn wound on a reel on the opposite side of the rotating shaft is attached to the main body. Pig for cleaner characterized by having been bound.