KR20000017709U - instrument for cleaning pipes - Google Patents

Abstract

The present invention relates to a pipe cleaning mechanism that scrapes the scale of the inner wall of a pipe while rotating the inside of a water pipe buried underground or a gas pipe in a factory, and is a shell type pipe for removing the scale inside the pipe while moving inside the pipe. In the vacuum cleaner tool, a plurality of linear or spiral grooves 22 are formed radially on the concave surface 20 at the rear end of the fib main body 10, and the cleaning is performed by rotating the pipe in advance. It can smoothly advance the inside of the pipe rather than the instrument, and the cleaning can be done perfectly.

Description

Instrument for cleaning pipes}

The present invention relates to a pipe cleaning device such as a water pipe buried underground, a product raw material pipe in a factory, a gas pipe, etc. Specifically, cleaning a pipe such as a pig that scrapes foreign substances such as scales on the inner wall of the pipe while rotating It is about a mechanism.

Generally, water pipes and gas pipes are used for a long time, and the inner wall of the pipe is ground, and then lined with epoxy resin paint and reused. In this case, when cleaning the inner surface of the pipe while grinding, so-called cleaning shell-type pigs are mainly used, and after inserting the pig into the pipe, foreign matter such as scale of the pipe wall while driving the pig inside the pipe by spraying compressed air from the back of the pig. Clean it.

Such a pig body must be attached with a grinding body that scrapes off foreign substances on the inner wall of the pipe, and may be removed using a soft pig without grinding bodies depending on the type of foreign matter in the pipe. Conventionally, the grinding body is formed integrally with the pig body, so that the life of the pig itself is as short as that of the grinding body.

As a technique for improving this problem, Korean Utility Model Publication No. 90-4633 (name of the invention "Pig cleaning the inner wall surface of the pipeline"). The conventional design is to detachably attach the grinding body to the pig body, so that only the grinding body can be replaced when the grinding body reaches the end of its life, so that the pig can continue to be used. In this case, however, the life of the pig can be improved, but since the pig still advances the inner wall of the pipe without rotation, there is a problem in that the cleaning of the pipe is not superior to the conventional pig.

The object of the present invention is to provide a pipe cleaning device that allows the pipe cleaning device to move forward in the pipe in consideration of the problems of the related art, so that the pipe cleaning device can be easily moved within the pipe and almost completely clean the inner wall of the pipe. It is done.

1 is a perspective view of a mechanism according to the present invention;

2 is a bottom view of FIG. 1;

3a is a perspective view of a first grinding body according to the present invention;

3b is a perspective view of a second grinding body according to the present invention;

4 is a perspective view of a second embodiment of the present invention;

5 is a plan view of FIG. 4;

6, 7 are front views of third and fourth embodiments of the present invention;

8 is a state of use of the present invention.

<Explanation of symbols for main parts of drawing>

1 .. Piping cleaning equipment 5. First grinding body

7 .. Second grinding body 10 .. Body of pipe cleaning equipment

12. Grooves 20. Concave surface

22,29 .. Home 28 .. Conical surface

26 .. Brush 30 .. Piping pipe

32. Scale

Pipe cleaning mechanism according to the present invention for achieving the above object,

In the shell type vacuum cleaner for moving the pipe and removing the scale inside the pipe:

Preferably, a plurality of spiral grooves 22 are formed radially on the concave surface 20 at the rear end of the fib main body 10.

In addition, in the pipe cleaning apparatus of the present invention, a plurality of cylindrically shaped first grindings having a plurality of circumferential grooves 12 formed on an outer circumferential surface of the main body 10 and having an insertion pin 5a on one of the grooves. The sieve 5 is fixed side by side, and the remaining grooves 12 are fixed with a plurality of curved cube-shaped second grinding bodies 7 having the same curvature as the main body with insertion pins 7a at both ends thereof. More preferably.

Further, it is more preferable that a plurality of spiral grooves 29 are radially formed on the front conical surface 28 of the pipe cleaning apparatus according to the present invention.

In addition, a plurality of grooves 27 communicating with the grooves 29 are formed in the shape of a comb on the outer circumferential surface of the main body 10 of the vacuum cleaner tool of the present invention, and a brush 26 is formed between the plurality of grooves 27. It is preferably formed.

In addition, in the vacuum cleaner according to the present invention, it is also preferable that the groove 22 on the concave surface or the groove 29 on the conical surface is convex.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view of a cleaner mechanism according to the present invention.

As shown in the figure, the vacuum cleaner 1, such as a pig, is generally shell-shaped, and its material is made of an elastic material such as a soft plastic, in particular, urethane, like a conventional pig. The main body 10 of the vacuum cleaner tool 1 is cylindrical, and the outer peripheral surface of the main body 10 is formed with a plurality of cylindrical grooves (12). Three recesses 12 are shown in the figure. Each recess 12 is formed around the cylindrical body 10.

A plurality of first grinding bodies 5 are mounted in the first recess 12a. The second grinding bodies 7 are mounted on the second recess 12b and the third recess 12c. It is preferable that the 1st grinding body 5 is a rectangular parallelepiped, and its material is hard. Although the shape of the 1st grinding body may be the same respectively, it is preferable to alternately attach an elongate shape and a short rectangular parallelepiped shape to the recessed part 12a as shown. Although the 2nd grinding body 7 is attached to the 2nd, 3rd recessed part 12b, 12c, it is preferable to arrange | position in zigzag form in order to raise the efficiency of grinding.

FIG. 2 is a bottom view of the vacuum cleaner 1 shown in FIG. 1, but the width of the groove 22 is preferably 10 to 15 mm, but is not limited thereto. In addition, the cross section of the groove 22 is preferably a right triangle so that the high-pressure air hits the groove to generate a rotation force, as described below. Further, a plurality of grooves 29 having the same shape as the grooves 22 are radially formed on the conical surface 28 on the front surface of the shell type vacuum cleaner 1 (see FIG. 1).

Generally, the vacuum cleaner 1 is advanced by the pressure of compressed air. Therefore, the bottom surface of the vacuum cleaner tool 1 consists of the hemispherical concave surface 20 so that air pressure may fully be received. As shown, a plurality of grooves 22 and 29 are formed in the concave surface 28 as well as the front conical surface 28. As will be described later, in order to advance while rotating the vacuum cleaner mechanism during the cleaning operation, these grooves 22 are preferably formed radially while forming a spiral (FIG. 2A). The groove 22 is advantageously manufactured to be concave, but in terms of actual work efficiency, it is more preferable to be convexly formed on the concave surface 20.

3A and 3B are perspective views of the first and second grinding bodies.

As shown, the first grinding body 5 is composed of a large grinding body 5A and a small grinding body 5B. Each grinding body is provided with insertion pins 5a and 7a respectively inserted into the instrument body 10. The insertion pin 5a is preferably threaded in order to be easily inserted into the main body 10. The ends of the insertion pins 5a and 7a are preferably configured in the form of a hook 6 to prevent the grinding body from being arbitrarily removed from the main body 10 during the operation, but the hook 6 may be used to facilitate replacement of the grinding body. ) Does not have to be formed. It is preferable that the large grinding body 5A has a length about twice as large as the small grinding body 5B. When the grinding bodies of different sizes are attached to the grooves 12a side by side, the scale of the inner wall of the pipe can be relatively variously scraped using the edges of the grinding bodies during the first operation described later.

The second grinding body 7 is an arcuate rectangular parallelepiped having a curvature that matches the curvature of the pipe cleaning body 10 (hereinafter referred to as a "curved cube"), and the material is preferably hard. In addition, both ends of the grinding body 7 are provided with insertion pins 7a each having a hooked end. Therefore, the grinding bodies 5 and 7 can be firmly fixed to the soft main body 10 by the insertion pins. Since the second grinding body is a curved cube and is attached to the second and third recesses 12b and 12c in a zigzag shape, the inner wall surface of the pipe can be completely scraped off during the second operation described later.

4 is a front view of another embodiment of the present invention.

As illustrated, the brush 26 is formed on the outer circumferential surface of the main body 10 of the pipe cleaning mechanism 1 by tightly embedding short and hard pins of about 7 to 8 mm in length. This brush is preferably mounted on the entire outer circumferential surface of the main body 10. As described above, the conical surface 28 on the entire surface of the vacuum cleaner 1 and the concave surface 20 on the bottom are radially formed in the spiral grooves 29 and 22. In addition, a plurality of grooves 27 are formed at an oblique angle on the surface on which the brush 26 is formed. These grooves 27 preferably communicate with the grooves of the conical surface 28.

FIG. 5 is a plan view of FIG. 4, showing a state in which a spiral groove is formed.

6 is a front view of the pipe cleaning mechanism in a state in which a plurality of columnar grooves 12 are formed in the pipe cleaning mechanism main body 10. Spiral grooves are also radially formed on the conical surface 28 and the concave surface 20 of the front surface of the pipe cleaning apparatus.

7 is a front view of the cylindrical vacuum cleaner mechanism in which no groove is formed around the main body of the pipe cleaning mechanism, and no groove is formed in the front surface of the conical surface. This mechanism is generally used for finishing work of pipe cleaning, the material of which is composed entirely of sponge, and the rear end portion subjected to air pressure is preferably composed of urethane enamel. In addition, it is preferable that the rear surface is flat unlike the above-described vacuum cleaner.

8 is a view illustrating the use of the pipe cleaning mechanism according to the present invention, the operation of the above-described pipe cleaning mechanism will be described.

First, the pipe cleaning mechanism 1 equipped with only the primary grinding body 5 is inserted into the pipe pipe 30, and the high pressure air is injected in the direction of the arrow P from the rear side. In this case, the high pressure air collides with the plurality of radial grooves 22 formed in the concave surface 20 of the bottom surface of the pipe cleaning mechanism 1 so that the pipe cleaning mechanism 1 rotates. By the high pressure air pressure and the rotational force, the pipe cleaning mechanism 1 rotates forward and passes through the inside of the pipe pipe 30. At this time, the front of the cleaning mechanism sucks air to assist the advancement of the cleaning mechanism. The primary grinding body 5 scrapes off the foreign matter 32 on the inner wall surface of the pipe 30 while rotating forward. Since the primary grinding body 5 is a rectangular body, in particular, the edge serves as a blade and can efficiently scrape off the scale that is firmly fixed.

After completion of the primary work, the pipe cleaning mechanism 1 equipped with only the secondary grinding body 7 is inserted into the pipe pipe 30 in the same manner. Therefore, it is possible to scrape off the remaining scale and the like even after scraping in the first operation. Since the secondary grinding body is arcuate, the entire inner wall of the pipe 30 can be scraped off. In addition, since the grinding bodies 7 are mounted in two rows of recesses 12b and 12c in a zigzag shape, dirt, such as scale on the inner wall surface of the pipe, can be cleaned twice.

After the secondary work, the pipe cleaning device having the brush 26 attached to the main body is inserted into the pipe pipe 30 in the same manner. At this time, since the pipe cleaning apparatus has a plurality of grooves 27 formed on the brush surface of the circumferential surface thereof, air hitting the front surface of the pipe cleaning apparatus hits the groove 29 when the pipe cleaning mechanism is advanced. ), The rotational force becomes stronger. Thus, while strongly rotating and advancing, the brush 26 cleans while thoroughly scraping off the inner wall of the pipe. Therefore, the dirt remaining in the first and second operations and stuck to the pipe wall is almost completely removed.

After the third operation, the pipe cleaning apparatus shown in FIG. 6 is inserted into the pipe in the same manner. At this time, the convex surface of the pipe cleaning mechanism rotates forward while pressing the entire pipe wall surface. By this operation, liquid dirt, such as moisture and oil, which are not removed even in the first to third operations, is removed.

After the fourth operation, the pipe cleaning apparatus of FIG. 7 made of a soft material such as a sponge is inserted into the pipe pipe in the same manner to advance. By this operation, liquid dirt and fine dirt in the pipe are completely removed.

The above-mentioned several operations can work 2 or more times as many times as needed. In addition, the above-mentioned work procedure may be different according to the state of piping. That is, when the foreign matter inside the pipe is relatively easy to remove, the above-described primary and secondary operations may be omitted, and the operation may be performed directly with a brush cleaner.

The drawings and specification are merely exemplary of the present invention, which are used only for the purpose of describing the present invention and are not intended to limit the scope of the invention as defined or in the claims. The idea of the present invention to move forward while cleaning the inside of the pipe pipe will be construed as being included in the scope of the present invention, regardless of the embodiment described above.

According to the present invention configured as described above, the inside of the pipe can be smoothly moved forward than any of the conventional pigs because the pipe cleaning mechanism rotates forward and cleans, and the cleaning can be made perfectly.

Claims (5)

In the shell type vacuum cleaner for moving the pipe and removing the scale inside the pipe: A pipe cleaning apparatus, characterized in that a plurality of spiral grooves 22 are radially formed on the concave surface 20 at the rear end of the cylindrical body 10. 2. The plurality of rectangular parallelepiped first grinding bodies (5) according to claim 1, wherein a plurality of grooves (12) are formed in a circumferential shape on the outer circumferential surface of the main body (10), and one of the grooves has an insertion pin (5a). ) Is fixed side by side, the remaining grooves 12, the insertion pin (7a) is running at both ends and a plurality of curved cuboid second grinding bodies (7) having the same curvature as the main body is fixed at regular intervals Pipe cleaning equipment. 2. The pipe cleaning apparatus according to claim 1, wherein a plurality of spiral grooves (29) are radially formed on the front conical surface (28). According to claim 3, A plurality of grooves 27 in communication with the groove 29 is formed on the outer peripheral surface of the cylindrical body 10 in the shape of a comb, the brush 26 between the plurality of grooves 27 Pipe cleaning apparatus, characterized in that formed. The pipe cleaning apparatus according to any one of the preceding claims, wherein the groove (22) on the concave surface or the groove (29) on the conical surface is convexly formed.