JP2023037233A - Cleaning jig for hollow material and method of cleaning hollow material using cleaning jig - Google Patents

Abstract

To provide a cleaning jig and a cleaning method using the cleaning jig that can reliably scrape off deposits adhering to inner walls of a hollow member with a simple operation.SOLUTION: The cleaning jig for scraping off deposits adhering to an inner wall of a hollow material comprises a jig body used as a handle of the cleaning jig when scraping off the deposits, and at least two types of scrapers arranged facing each other on a holder provided at a tip of the jig body for scraping deposits on the inner wall of the hollow member in forward and backward directions, respectively. At least one of the scraper for scraping off deposits in the forward direction and the scraper for scraping deposits in the backward direction is rotatably held by the holder via a pivot. A pressing mechanism is provided for pressing the scrapers rotatably held by the holder against the inner wall of the hollow member to bring a scraping tip of the scraper into contact with the inner wall of the hollow member.SELECTED DRAWING: Figure 3

Description

TECHNICAL FIELD The present invention relates to a hollow material cleaning jig suitable for scraping off deposits such as dust adhering to the inner wall of a hollow material, and a hollow material cleaning method using the cleaning jig.

In a high-moisture treatment facility, a stock solution containing sludge is separated into sludge and liquid (water) by forcing it into a stock solution passage of a liquid supply plate arranged between a pair of filter cloths. The separated liquid passes through a metal hollow material provided at the bottom of the liquid supply plate, but the transported liquid contains a small amount of dust, and sludge accumulates on the inner wall surface of the hollow material. , is in an unavoidable situation to stick.

For this reason, normally, the inside of the hollow member is periodically cleaned to remove the sludge that has accumulated and adhered to the inner wall surface of the hollow member, thereby avoiding clogging of the liquid supply port. However, since the passage of the hollow member is narrow, it is not easy to clean it, and it is difficult to remove the deposits efficiently.

As a prior art related to this point, in Patent Document 1, a sherbet-like fluid composed of ice particles and water is pressurized and injected into a watertight bag, and the fluid is moved while being in contact with the inner wall surface of the pipe. Disclosed is a method of removing deposits by allowing the By the way, in such a method, it takes extra time and effort to maintain an environment in which the ice particles do not melt during cleaning, such as temperature control, and the problem remains that it is not easy to handle.

Japanese Patent No. 6441569

SUMMARY OF THE INVENTION An object of the present invention is to provide a cleaning jig for hollow materials and a method for cleaning hollow materials using the cleaning jig, which can easily and efficiently remove deposits adhering to the inner walls of hollow materials. be.

The present invention is a cleaning jig for scraping off deposits adhering to the inner wall of a hollow member,
A jig body used as a handle of a cleaning jig when scraping off the adhering matter, and a holder provided at the tip of the jig body are arranged so as to face each other, and are hollow in forward and backward directions, respectively. At least two types of scrapers for scraping deposits on the inner wall of the material,
At least one of the scraper for scraping off deposits in the outward direction and the scraper for scraping deposits in the return direction is rotatably held by the holder via a pivot,
A pressing mechanism is provided for pressing the scrapers rotatably held by the holder against the inner wall of the hollow member to bring the scraping tip of each scraper into contact with the inner wall of the hollow member. It is a cleaning jig for hollow materials.

In the hollow member cleaning jig configured as described above,
1) The pressing mechanism includes a female thread provided in the holder and a tip portion of the jig body, which is screwed into the female thread and moves the jig body itself against the holder as the jig body rotates. A male screw for moving forward or backward from a starting point, and a scraper connected to the jig body and rotatably held by the holder by movement of the jig body in the forward direction is mounted on the inner wall of the hollow member from the rear surface thereof. comprising a push rod that pushes towards
2) The pressing mechanism includes a rod rotatably held in the jig body and a scraper connected to the tip of the rod and slidably held by a holder as the rod rotates. comprising a slider that presses against the inner wall of the hollow member from its back surface;
3) The pressing mechanism is arranged between a scraper for scraping off deposits in the outward operation and a scraper for scraping the deposits in the return operation, and the scraper is rotatably held by a holder of the jig body, It is preferable as a specific means for solving the problem that the elastic member is always pressed against the inner wall of the hollow member.

Further, in cleaning the interior space of the hollow member using the above-described cleaning jig, the present invention provides a scraper for scraping deposits in the outward direction and a scraper for scraping deposits in the return direction, respectively. , the scraping tip of each scraper is pressed against the inner wall by a pressing mechanism, and while maintaining this state, the jig body is moved in the forward and backward directions to scrape off deposits adhering to the inner wall. A method for cleaning a hollow member using a cleaning jig characterized by:

According to the present invention, deposits adhering to the inner wall of the hollow member can be reliably and efficiently removed with a simple operation.

1 is an external perspective view schematically showing an embodiment of a jig for cleaning a hollow member according to the present invention; FIG. FIG. 2 is an external perspective view showing an exploded state of the cleaning jig shown in FIG. 1; It is the figure which made the side surface of the cleaning jig shown in FIG. 1 into a partial cross section, and showed it. It is the figure which showed the usage condition of the cleaning jig shown in FIG. FIG. 4 is a cross-sectional view schematically showing another embodiment of a jig for cleaning a hollow member according to the present invention; FIG. 10 is an external perspective view schematically showing still another embodiment of a jig for cleaning a hollow member according to the present invention; FIG. 7 is a cross-sectional view showing a side surface of the hollow material cleaning jig shown in FIG. 6 ; FIG. 7 is an explanatory view of how to use the jig for cleaning the hollow member shown in FIG. 6;

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 shows a hollow material cleaning jig according to the present invention suitable for removing deposits adhering to the inner wall of the inner space of a metal hollow material having a narrow flat rectangular inner space. 2 is an external perspective view showing an exploded state of the cleaning jig shown in FIG. 1, and FIG. 3 is an assembly of the cleaning jig. It is the figure which showed the side surface of an attached state with a partial cross section.

Reference numeral 1 in FIGS. 1 to 3 denotes a jig body used as a handle of the cleaning jig when scraping off deposits. The jig main body 1 can use a long rod-like member having a circular cross section. In FIGS. 1 to 3, reference numeral 2 denotes a holder, and reference numerals 3 and 4 are disposed above and below the holder 2 so as to face each other, and are scrapers that scrape off deposits on the inner wall of the hollow member by moving in the forward and backward directions, respectively. , 5 is a handle provided at the distal end of the jig body 1 and can be used when the jig body 1 is rotated. In the present invention, the forward direction refers to the direction from the entry side opening of the internal space of the hollow member toward the bottom thereof, and the return direction refers to the direction toward the entry side opening of the internal space.

A scraper 3 for scraping off deposits in the outward direction is held by a holder 2 via a screw 2a so as not to rotate. It is rotatably held through the

Further, reference numeral 6 in the figure designates a scraper 4 rotatably held by the holder 2, which is pressed against the inner wall of the hollow material, and the scraping tips 3a and 4a of the respective scrapers 3 and 4 are pressed against the hollow material. It is a pressing mechanism that abuts against the inner wall with an appropriate pressure.

The pressing mechanism 6 includes a female screw 6a provided in the holder 2 so as to pass through it in the forward and backward directions, and a pressing mechanism 6 provided at the tip of the jig body 1 to be screwed into the female screw 6a and to be attached to the jig body 1. A male screw 6b for moving the jig body 1 itself in the forward or backward direction from the holder 2 as it rotates is connected to the distal end surface of the jig body 1, and the movement of the jig body 1 in the outward direction causes It is composed of a pressing rod 6c for pressing the scraper 4 rotatably held by the holder 2 from its rear surface toward the inner wall of the hollow member. If the pressing rod 6c has a shape capable of pressing both the scraper 3 and the scraper 4, the scraper 3 may also be rotatably held by the holder 2 via the pivot 2b in the same manner as the scraper 4. , is not limited in this regard.

In order to remove deposits adhering to the inner wall of the hollow member using the cleaning jig having the above configuration, the scrapers 3 and 4 are positioned in the inner space of the hollow member as shown in FIG. The jig main body 1 is rotated by the handle 5 to move the jig main body 1 together with the push rod 6c in the forward direction, and the scraping tips 3a and 4a of the respective scrapers 3 and 4 are pressed against the hollow member so as to have an appropriate pressure. After contacting the inner wall of the jig body 1, the jig body 1 is moved in the forward and backward directions.

When the scraping tip portions 3a and 4a of the scrapers 3 and 4 wear out during the work of scraping off deposits and the predetermined contact pressure cannot be maintained, the jig body 1 is rotated again by the handle 5. to move the jig body 1 together with the pressing rod 6c in the forward direction.

FIG. 5 is a cross-sectional view of another example of a hollow member cleaning jig according to the present invention. In this example, the pressing mechanism 6 is rotatably held via a bearing J inside the jig body 1 having a cylindrical shape, and a rod 6d whose movement along the axis O is restricted, and the rod 6d. A scraper 4 is connected to the tip portion via a female thread 6e and a male thread 6f, slides in the forward direction as the rod 6d rotates, and is rotatably held by the holder 2. and a handle 6h provided at the end of the rod 6d and used to rotate the rod 6d.

The slider 6e of the cleaning jig configured as described above is provided with a detent so that the slider 6e does not rotate even when the rod 6d rotates. By sliding, the scraper 4 is pressed from its rear surface toward the inner wall of the hollow material, and the scraping tips 3a and 4a of the respective scrapers 3 and 4 are brought into contact with the inner wall of the hollow material under appropriate pressure. is now possible.

In the present embodiment, the slider 6b is provided with the male screw 6f, and the rod 6d is provided with the female screw 6e that screws into the male screw 6f to slide the slider 6g. Other means may be used.

When the scraping tips 3a and 4a of the scrapers 3 and 4 are worn out and the predetermined contact pressure cannot be maintained, the jig body 1 is rotated by the grip 6h to slide the slider 6g in the forward direction. The contact pressure is adjusted by pressing the scraper 4 toward the inner wall of the hollow member.

FIG. 6 is an external perspective view showing still another embodiment of a hollow material cleaning jig according to the present invention, and FIG. 7 is a cross-sectional view thereof.

In this cleaning jig, as the pressing mechanism 6, an elastic member 6i such as a coil spring having an urging force that urges the scrapers 3 and 4 in a mutually separating direction is arranged between the scrapers 3 and 4. It consists of structure.

In order to position the scrapers 3 and 4 in the inner space of the hollow member in the cleaning jig provided with the elastic member 6i, as shown in FIG. Position them in the interior space of the hollow member while keeping them close to each other, and then remove the external force. When the application of the external force is released, the scraping tips 3a and 4a of the scrapers 3 and 4 come into contact with the inner wall of the hollow member due to the biasing force of the elastic member 6i. The scrapers 3 and 4 are moved in the forward and backward directions to scrape off the deposits.

When the elastic member 6i is used for the pressing mechanism 6, since the urging force of the elastic member 6i always acts on the scrapers 3 and 4, the scraping tip portions 3a and 4a of the scrapers 3 and 4 are worn. However, since the scraping tips 3a and 4a are always in contact with the inner wall of the hollow member, there is an advantage that the adjustment of the contact pressure is not required.

In the embodiment of the present invention, a cleaning jig suitable for cleaning a hollow member having a narrow internal space with a flattened rectangular cross section was described as an example. Use a scraper set to a curved surface that fits the inner wall.

ADVANTAGE OF THE INVENTION According to this invention, the cleaning jig which can scrape off the deposit|attachment adhering to the inner wall of a hollow material efficiently by simple operation|work, and the cleaning method using the cleaning jig can be provided.

1 jig body 2 holder 2a pivot 3 scraper 3a scraping tip 4 scraper 4a scraping tip 5 handle 6 pressing mechanism 6a female screw 6b male screw 6c pressing rod 6d rod 6e female screw 6f male screw 6g slider 6h handle 6i elastic member J bearing

Claims (5)

A cleaning jig for scraping off deposits adhering to the inner wall of the hollow material,
A jig body used as a handle of a cleaning jig when scraping off the adhering matter, and a holder provided at the tip of the jig body are arranged so as to face each other, and are hollow in forward and backward directions, respectively. At least two types of scrapers for scraping deposits on the inner wall of the material,
At least one of the scraper for scraping off deposits in the outward direction and the scraper for scraping deposits in the return direction is rotatably held by the holder via a pivot,
A pressing mechanism is provided for pressing the scrapers rotatably held by the holder against the inner wall of the hollow member to bring the scraping tip of each scraper into contact with the inner wall of the hollow member. Hollow material cleaning jig. The pressing mechanism includes a female thread provided in the holder and a tip portion of the jig body, which is screwed into the female thread and moves the jig body itself from the holder as a starting point as the jig body rotates. A male screw that moves in the forward direction or the backward direction, and a scraper that is connected to the jig body and rotatably held by the holder by moving the jig body in the outward direction is directed from the rear side toward the inner wall of the hollow member. 2. A jig for cleaning a hollow member according to claim 1, characterized in that it comprises a pressing rod for pressing. The pressing mechanism includes a rod rotatably held in the jig main body, a scraper connected to the tip of the rod, and slidable according to the rotation of the rod to move the scraper rotatably held by the holder to the rear surface thereof. 2. A jig for cleaning a hollow member according to claim 1, comprising a slider that presses against the inner wall of the hollow member. The pressing mechanism is disposed between a scraper for scraping off deposits in the outward operation and a scraper for scraping off deposits in the return operation, and the scraper is rotatably held by a holder of the jig body, and the scraper is held by a hollow member. 2. The jig for cleaning a hollow member according to claim 1, wherein said hollow member is made of an elastic member that is constantly pressed against the inner wall of said hollow member. In cleaning the internal space of the hollow member using the cleaning jig according to any one of claims 1 to 4,
A scraper for scraping deposits in the outward direction and a scraper for scraping deposits in the return direction are positioned in the internal space of the hollow member, and a pressing mechanism presses the scraping tip of each scraper against the inner wall to maintain that state. A method for cleaning a hollow member using a cleaning jig, characterized by scraping off deposits adhering to the inner wall by moving the jig body in forward and backward directions while keeping the jig body.

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