JPS61138584A - Method of cleaning inside of duct - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a method of cleaning air conditioning ducts and the like.

Air conditioning ducts have been used for many years without being cleaned because the ducts are arranged vertically and horizontally, and their cross-sectional area is narrow, making it impossible for people to enter and clean them. There are many. Therefore, soot, dust, etc. are accumulated on the button inside the duct, and this peels off and comes out from the outlet.
It is deteriorating the indoor living environment.

As a conventional technique for cleaning such a duct, there is an invention described in Japanese Patent Application Laid-Open No. 58-170584.

The gist is that a cleaner with a self-propelled function is inserted into a duct, and the operation and operation of the cleaner is controlled from outside the duct to clean the inside of the duct.

The cleaner of this invention has a main body (01) in FIG.
It has a dust suction part (02) at the bottom, and a drive wheel (03) at the bottom of the main body.
It has the following. This cleaner is controlled from the outside by wire or wirelessly, travels inside the duct, and sucks up and cleans soot, dust, etc. that have accumulated on the inner bottom surface of the duct. However, with this type of leaner, it is difficult to clean the ceiling and sides of the duct, and if the duct is installed vertically or there are steps on the duct floor, it is difficult for the cleaner to run, and it is also expensive. (・It has its drawbacks.)

An object of the present invention is to provide a duct cleaning method that eliminates the above-mentioned drawbacks of the prior art.

The details of the present invention will be explained below with reference to the drawings.

FIG. 2 is a perspective view showing a first embodiment of a cleaning tool (hereinafter referred to as a duct reamer) used when cleaning a duct according to the method of the present invention. The Guku l-17-ma (1) consists of a frame (2) for rectangular examination and a cylindrical flap part (3) with one end attached to the frame (2). This folding part (3) is made of a material such as paper or cloth, and the other end is divided to form a ribbon part (4) consisting of a plurality of ribbons. Further, a rope (5) is attached to the frame C).

In order to clean the duct by means of the method according to the invention, K inserts the duct reamer (1) into the duct to be cleaned (6) as shown in FIG. It is assumed that the airflow is flowing in the direction of the arrow in the duct (6), and the outlet (7) has a dust collector 1'fi.
(81 is connected. The other end of the loaf (5) connected to the duct reamer (1) is passed through the guide pipe (9) at an appropriate position in the duct (6) and is brought out of the duct (6). .

By holding or pulling the rope (5), the duct reamer (1) in the duct (6) can remain in place or move against the air flow. Indexed to rope (5) (
As a result, the duct reamer (1) floats in the air flow inside the duct (1), flaps up and down and left and right, and repeatedly hits the inner wall surface of the duct with a strong impact on the upper, lower, left and right sides. Soot, dust, etc. adhering to the inner wall surface are separated and carried by the airflow to the duct outlet (7), where they are collected by the dust collector (8).

Fig. 4 shows a second embodiment of the duct reamer, in which a left/right rudder (9) and a vertical rudder (10) are attached to the duct reamer (1), and by operating these rudders, the duct reamer (
Move 1) up, down, left and right, or press the
This allows the cleaning to be carried out more effectively by blowing a strong wind at the surface.

FIG. 5 shows a third embodiment of the duct reamer (1), in which a fan 7 (11) is attached inside the duct reamer (1). This fan (1υ) is rotated to generate a powerful wind, which increases the pressing action of the taki part (3).Also, this fan (11) is fixed without rotating. - However, turbulent flow occurs inside the duct reamer (1), and the pressing action of the tassel part (3) becomes harsh.

Or, 7A7 (If the IIJ is installed diagonally, the air will...
It hits the trestle part (3) obliquely, and one side of the duct (6) is strongly pressed, thereby enhancing the cleaning effect.

Figure 6 shows a fourth embodiment of the duct reamer, with the frame (2)
The brushes (12) and (13) are attached to the brushing part (3). At the same time, the inner wall surface of the duct is pressed with the punching part (3) and the brushing/brushing is performed. Further, if this flange (12) (13) is applied to the duct reamer of other embodiments, the cleaning effect will be increased accordingly.

FIG. 7 shows a fifth embodiment of the duct reamer. In this embodiment, the structural member of the frame body (2) is hollow, and a large number of air blowing holes (15) are bored therein. Air hose (1,
In step 4), air is supplied to this component and air is blown out from the outlet (15 holes) for cleaning.Furthermore, extend the rubber hose (16) to the end of the duct reamer (1), and - Cleaning can be done more effectively by blowing air out.

Fig. 8 shows a sixth embodiment of the IJ-ma, in which the frame body (2) is bent in a diagonal shape with the central axis (17) as the central axis (17). ) tied to a rope (18
), the left and right widths become smaller as shown in Figure 9, making it usable even in narrow ducts.

FIG. 10 shows a seventh embodiment of the IJ-ma. The duct reamer (1) has a cylindrical shape, and fixed wings (19) are added to the frame body (2). For this purpose, it rotates and flaps due to the airflow in the duct, hitting the inner wall surface of the duct and cleaning it. That is, it cleans dust, soot, etc. that adhere to the inner wall surface by applying horizontal pressure.

FIG. 11 shows an eighth embodiment of the duct reamer. In this embodiment, a rotary bluff (22) is attached to the top or side surface of the duct reamer (1) to remove dust, soot, etc. from the inner wall surface of the duct. A fan is attached to the frame (), and the shaft of this fan 7/ is connected to the shaft of the rotating brush, the fan is rotated by the air flow in the duct, and the rotation plan connected to the fan is rotated. In this embodiment as well, the duct reamer (1) flaps vertically and horizontally within the duct, and of course performs cleaning by the fluttering action.

FIG. 12 is an explanatory diagram of a ninth embodiment of the duct reamer.

In this embodiment, the duct reamer (1) is shaped like a bag, and a number of air outlets (23) are provided on the side surface.

Due to the air flow in the duct, the duct reamer (1) jumps out inside the duct and hits the inner wall surface of the duct (at the same time, the duct reamer (1) performs powerful cleaning by blowing air from inside.
The figure shows the 10th embodiment of IJ-7, and the 12th embodiment.
Attach many ribbons to the IJ-ma (1),
...It has increased taki effect.

FIG. 14 is a perspective view of the 11th embodiment of the IJ-ma (duct reamer) from the 1st embodiment to the 9th embodiment.
The frame body (2) of 1) is made smaller and the flap part (3) is made larger. In this way, the cleaning effect will be achieved by constricting in narrow ducts and widening in large ducts. Also, when you take it out of the duct, it shrinks so you don't have to worry about it getting caught.

In each of the above embodiments, the area near the end of the folding part (3) is divided into a plurality of ribbons (4), but it is not necessarily limited to the area near the end, and most or the entirety is an aggregate of ribbons. There is no problem even if you do.

The material of this brushing part is not limited to paper or cloth, but may also be made of vinyl, rubber, or the like. Further, the shape of the frame (2) is not limited to a rectangle or a circle, and may be a triangle, a polygon, an ellipse, a semicircle, a rod, an oil gap, a bent rod, or the like. These shapes need to be appropriately selected depending on the shape of the duct to be cleaned, the dirtiness inside the duct, etc. Also, in Figure 2, the airflow from the blower flows from the left to the right of the duct (6), and the dust collector (
8) K to collect dust, soot, etc. from K and exit the duct.
However, a suction fan may be interposed at the outlet of the duct to generate air flow.

In addition, it is not always necessary to use lobes to index the duct reamer, but strings, wires, chains, ropes, or rod-shaped bodies connected rotatably to each other, or a combination of the above-mentioned rod-shaped bodies that can be expanded and contracted as a whole. There is no problem in using a flexible one.

As described above, according to the present invention, the four sides of the duct (top, bottom, left and right) can be cleaned simultaneously, and since the duct reamer is floating, even if there is a step between the duct and the outlet, the duct can be cleaned in the vertical direction. However, even if there is a bent part, it can be cleaned. Moreover, it does not require expensive components such as drive units or control units.

It has the effect of being able to carry out construction work at low cost.

[Brief explanation of drawings]

Figure 1 is a perspective view for explaining the prior art, Figure 2, Figure 4, Figure 5, Figure 6, Figure 7, Figure 8, Figure 9, Figure 1.
Figure 0, Figure 11, Figure 12, Figure 13. FIG. 14 shows a first embodiment, a second embodiment, a third embodiment, a fourth embodiment, a fifth embodiment, a sixth embodiment, and a sixth embodiment of the present invention, respectively.
Similarly, it is a perspective view showing the main parts of the sixth embodiment, the seventh embodiment, the eighth embodiment, the ninth embodiment, the tenth embodiment, and the eleventh embodiment, and FIG. 3 is for explaining the present invention. It is a partially removed perspective view of FIG. (1) Duct reamer (2) Frame body (3) Grouping section (4) Lipo/section (5) Loaf. (6) DARITO (8) Collecting dust machine patent is paid IS/Zanzai 4 figure - ¥5 figure O 6 figure off figure age 9 figure age 10 day age 13 leap age 14 gu procedure correction $C method) % Formula % [, Display of the case 1982 Patent Application No. 259835 2, Name of the invention (device) Method for cleaning inside the duct 3, Person making the amendment Relationship to the case Patent applicant Postal code 468 Address Nagoya City, Aichi Prefecture 308 Shimada 3-chome, Tenpaku-ku
street address

Claims (1)

[Claims] (1) A duct cleaning method characterized in that a duct reamer attached to a rope is flapped by airflow to blow away dust on the inner wall of the duct.