JPS631916B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a cleaning device for a duct installed in a building.

B. Summary of the Invention The present invention relates to a cleaning device for a duct installed in a building, in which a cleaner inserted into the duct sucks accumulated dust inside the duct, and also scatters dust when the cleaner sucks the dust. The dust is discharged through a discharge duct connected to the duct, while the suction blower, control device, etc. are mounted on a trolley outside the duct so that the whole trolley can be moved.

C. Conventional technology and its problems Air conditioning (heating and cooling) ducts installed in buildings are used without being cleaned much of the time. Therefore, dust from several years to decades has accumulated inside the duct, and in severe cases, it has accumulated to a thickness of several centimeters at the bottom of the duct, especially at the corner between the duct side wall and the bottom plate at the end of the duct. It is deposited to a thickness of 5 to 6 cm. Such accumulated dust inside the duct increases the ventilation resistance inside the duct, leading to an increase in the energy of the air and, therefore, an increase in the power consumption of the air blower, etc., causing a phenomenon that goes against energy conservation. For example, when the inside of a building's ducts were manually cleaned to remove accumulated dust, the power consumption decreased by 17%.
The results showed a decrease of ~18%. Therefore, attempts have been made to actively clean the inside of the duct, but this cleaning work is dangerous because it involves working at heights, and it is difficult to clean the inside of a long duct by running a long and thin suction hose from one end. In addition, if the duct is long and there is no air outlet in the middle, there may be areas that cannot be cleaned. The work becomes extensive. Furthermore, when cleaning ducts in a room where precision machinery or equipment is installed, it is necessary to strictly prevent dust from scattering inside the room, and for this reason, the duct must be covered with a dustproof cover. , the work becomes troublesome.

The present invention was made in view of the above circumstances, and an object of the present invention is to safely and reliably clean the inside of a duct installed in a building.

D. Means for Solving the Problems The configuration of the present invention that achieves the above object includes a cleaner that is inserted into a duct and has a self-propelled function and a dust suction function, and an exhaust that extends from outside the duct and connects to the cleaner. a hose, an intermediate blower device provided in the middle of the discharge hose to improve the suction function, and a discharge hose provided at an insertion port of a cable connected to the discharge hose, the cleaner, and the intermediate blower device in the duct; a rolling roller that guides the movement of the cable; a discharge duct that is directly connected to the duct; a suction blower device that is provided outside the duct and applies suction to the discharge hose and the discharge duct; A controller equipped with a control device for controlling the operation and movement of the cleaner, a winding device for winding or unwinding the discharge hose and cable, the suction blower device, a control device, and the winding device, and is movable. The present invention relates to an in-duct cleaning device comprising a trolley having a shape of .

E. Effect In the duct cleaning device configured as described above, the dust in the duct is sucked by the cleaner and further suctioned and removed by the duct blower device, and the dust scattered when the cleaner sucks the dust is suctioned and removed through the discharge duct. Further, the suction blower device and the control device outside the duct are moved together with the trolley as necessary.

F. Embodiment FIG. 1 shows a perspective external appearance of a duct cleaning device according to an embodiment of the present invention, and FIG. 2 shows a schematic structure thereof.

The cleaning device includes a self-propelled cleaner 2 that is an in-duct device that is inserted into the duct 1, and an outside-duct device 3 that is installed outside the duct 1.

The self-propelled cleaner 2 has a running section 5 at the bottom of the main body 4.
It consists of a dust suction section 6 at the front of the main body 4, a suction section 7 at the rear thereof, a dust collection box 8 at the rear thereof, and a control section 9 built into the main body 4. The running section 5 is
It consists of a drive wheel 10 included in the main body 4 and a motor (not shown) that is incorporated in the main body 4 and serves as a drive source for the drive wheel 10. The dust suction unit 6 includes a cover 11, a rotating brush 12 provided at the tip thereof, and a motor 13 serving as a rotational drive source for the rotating brush 12. The suction section 7 connected to the rear of the dust suction section 6 includes a fan 14 and a motor 15 connected thereto, and generates a suction airflow by rotating the fan 14 by the motor 15. A flexible discharge hose 16 is connected to the rear part of the dust collection box 8. The traveling section 5, the dust suction section 6, and the suction section 7 are controlled and driven by a control section 9. In addition, on the main body 4 of the self-propelled cleaner 2,
A television camera 17 is rotatably provided to view the state of dust accumulation in the duct 1, and a light 18 is provided on the front of the main body 4 to illuminate the observation area.
is provided.

An intermediate blower device 33 is provided in the middle of the discharge hose 16 to improve the suction capacity.
Since the duct generally spans a long distance, the intermediate blower device 33 is necessary to supplement the suction capacity.

The device outside the duct 3 includes a suction blower device 19, a power supply device 20, and a control panel 21. The suction blower device 19 includes a winding section (winding device) 22 of the discharge hose 16, a suction section 23, and a dust collection chamber 24, and is connected to the rear part of the dust collection box 8 of the self-propelled cleaner 2. The discharge hose 16 is connected to the winding section 22.
and is connected to the suction section 23. This suction section 23 is made up of a fan 25 and a motor 26 connected thereto, and when the fan 25 is rotated by the operation of the motor 26, the discharge hose 16 is
Create a suction airflow inside. The power supply device 20 includes a cable winding section (winding device) 27 and a power source 28, and a cable 29 connected to the power supply 28 and wound around the winding section 27 is connected to the control section 9 of the self-propelled cleaner 2. ing. The control panel 21 controls the self-propelled cleaner 2 and is connected to the control section 9 of the self-propelled cleaner 2. The outside duct device 3 is moved and installed at a predetermined position during cleaning.
mounted on top. In the figure, 30a is a wheel of the truck 30. Further, rolling rollers 31 for guiding the discharge hose 16 and the cable 29 are attached at a location from the duct 1 to the device 3 outside the duct.

Further, a discharge duct 32 is directly connected to the side surface of the duct 1 to be cleaned.
is connected to the suction blower device 19 of the device 3 outside the duct. Therefore, a suction airflow is generated in the duct 1 through the discharge duct 32 by the operation of the suction blower device 19.

In this embodiment, the discharge hose 16 and the discharge duct 32 are connected to the same suction blower device 19, but of course they may be connected to separate suction blower devices.

The inside of the duct 1 is cleaned by inserting the self-propelled cleaner 2 into the duct 1 and operating it with the device 3 outside the duct. In other words, the rotary brush 12 of the dust suction section 6 is rotated and the fan 14 of the suction section 7 is operated. Dust accumulated on the inner bottom surface of the duct 1 is scraped off by a rotating brush 12, sucked by a suction section 7, and collected in a dust collection box 8. The dust in the dust collection box 8 is removed by the intermediate blower device 3.
3. The dust is sucked through the discharge hose 16 by the suction blower device 19 of the device outside the duct 3, and the dust is collected in the dust collection chamber 24.
are collected in. While performing the cleaning work as described above, the self-propelled cleaner 2 is moved within the duct 1 by the operation of the traveling section 5. When moving, the situation in front of the duct is captured by the television camera 17 and observed by the monitor built into the control panel 21 of the outside duct device 3, and the running speed, dust function, etc. are controlled according to the dust accumulation situation. Alternatively, the direction may be changed at a corner or a branch point of the duct 1.

Further, when the self-propelled cleaner 2 sucks dust, dust that is scraped off by the rotating brush 12 or scattered by the suction airflow is also collected by the suction blower device 19 via the discharge duct 32.

In this way, according to the duct cleaning device,
The dust accumulated in the duct 1 and the dust scattered during cleaning are collected.

Note that the discharge hose 16 and the cable 29 are fed out or wound up via the rolling rollers 31, so that the self-propelled cleaner 2 moves smoothly, and the unwinding of the discharge hose 16 and the cable 29 is also It becomes easier to target.

In the above device, the self-propelled cleaner 2 is driven and controlled from the outside by wire, but this may also be done wirelessly.

G. Effects of the Invention As described above, according to the cleaning device for an air conditioning duct according to the present invention, a cleaner with a self-propelled function is inserted into the duct and the cleaner is controlled from outside the duct to clean the inside of the duct. As a result, the inside of the duct can be cleaned safely and reliably in a continuous manner, which in turn can save energy in the air conditioning equipment.Furthermore, the dust scattered during cleaning can be directly collected by the exhaust duct. Cleaning becomes more reliable. Furthermore, since an intermediate blower device is installed on the discharge hose to improve suction ability, long ducts can be cleaned over long distances. Additionally, since rolling rollers are installed at the mouth of the duct to guide the discharge hose and cables, the resistance to moving long hoses and cables is reduced, and as a result, the drive system for running the cleaner is reduced. Capacity can be reduced. Furthermore, since the suction blower and the control device are mounted on a trolley and can be easily moved, it is extremely convenient for cleaning ducts disposed over long distances inside buildings.

[Brief explanation of the drawing]

FIG. 1 is a perspective external view of a duct cleaning device according to an embodiment of the present invention, and FIG. 2 is a schematic configuration diagram thereof. In the drawing, 1 is a duct, 2 is a self-propelled cleaner, 3 is a device outside the duct, 5 is a running part, 6 is a dust suction part, 7 is a suction part, 8 is a dust collection box, 9 is a control part, 12 is a rotating brush, 14 is a fan, 16 is a discharge hose, 19 is a suction blower device, 20 is a power supply device, 29 is a cable, 30 is a trolley, 32 is a discharge duct, and 33 is an intermediate blower device.

Claims (1)

[Scope of Claims] 1. A cleaner that is inserted into a duct and has a self-propelling function and a dust suction function; a discharge hose that extends from outside the duct and connects to the cleaner; an intermediate blower device that improves functionality; a rolling roller that is provided at an insertion port of a cable connected to the discharge hose, the cleaner, and the intermediate blower device in the duct and guides the movement of the discharge hose and the cable; a discharge duct directly connected to the duct; a suction blower device provided outside the duct to apply suction to the discharge hose and the discharge duct; and a control provided outside the duct to control the operation and movement of the cleaner. A device, a winding device for winding or unwinding the discharge hose and the cable, and a movable cart on which the suction blower device, the control device, and the winding device are mounted. A device for cleaning inside the duct.