JPH09290226A - Air-conditioning duct cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaner by which dust stuck on the inner wall surface of an air-conditioning duct is surely removed. SOLUTION: This air-conditioning duct cleaner 10 is constituted of a cleaning part 14, a leg part 16 and a dust collecting part 18. On using it, the whole cleaner is inserted into a duct 12 with the leg part 16 being folded up. Next, the leg part 16 is opened in umbrella to a main axis 24 to abut and support it on the inner wall surface of the duct 12 and to fix the whole cleaner in a prescribed position. Then, when compressed air is fed to an air motor 20 of the cleaning part 14 to rotate the air motor, an air hose 22 connected to an air diffuser of the air motor 20 is also rotated with it to blow out compressed air while striking the inner wall surface. In this way, dust stuck on the inner wall surface of the duct 12 is removed by double removal action of the impact due to striking of the air hose 22 and the compressed air.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning duct cleaning device, and more particularly to an air conditioning duct cleaning device for removing dust adhering to an inner wall surface of an air conditioning duct.

[0002]

2. Description of the Related Art Conventionally, as an air conditioning duct cleaning device of this type, there is one disclosed in Japanese Patent Laid-Open No. 59-49885. This air conditioning duct cleaning device has a support rod and an air supply head, the support rod is attached to a bearing member so as to be openable and closable in an umbrella shape, and the air supply head is fixed to a front portion of the bearing member. There is. According to the air conditioning duct cleaning device, first, the support rod is opened like an umbrella to abut and support the inner wall surface of the air conditioning duct, and then compressed air is blown from the air supply head toward the inner wall surface of the air conditioning duct. The air pressure of the compressed air blows off dust adhering to the inner wall surface to clean the air conditioning duct.

[0003]

However, since the conventional air-conditioning duct cleaning device has a structure for cleaning only by the air pressure of compressed air, dust that is hard to be removed by compressed air remains and cannot be reliably cleaned. There is. Further, the air-conditioning duct cleaning device has a drawback in that the front and rear of the cleaning section must be completely blocked by an air bag or the like, which requires time and effort for this work.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an air conditioning duct cleaning device capable of reliably peeling off and removing dust adhering to the inner wall surface of an air conditioning duct.

[0005]

In order to achieve the above object, the present invention provides a main shaft and an inner wall surface of an air conditioning duct when the main shaft is opened and closed in an umbrella shape so as to be opened and closed. A supported leg portion, an air motor that is attached to the main shaft and that rotates when supplied with compressed air, and has an air outlet that blows out the compressed air, and that is connected to the air outlet of the air motor. An air hose that blows the compressed air while striking the inner wall surface of the air conditioning duct by the rotation of the air motor to remove dust adhering to the inner wall surface of the air conditioning duct.

Further, in order to achieve the above object, the present invention provides a main shaft and a leg which is provided in an umbrella-like shape with respect to the main shaft so as to be openable and closable and which is abutted and supported on an inner wall surface of an air conditioning duct when opened. Section, a cleaning means provided at the front part of the main shaft for peeling and removing dust adhering to the inner wall surface of the air-conditioning duct by being driven, and a diameter of the cleaning means connected to the tip of the leg part and moving rearward. And a bag-shaped breathable filter that is attached to the rear portion of the sheet member to collect the dust.

According to the first aspect of the present invention, first, the entire apparatus is inserted into the air conditioning duct to be cleaned. Next, the leg portions are opened in an umbrella shape with respect to the main shaft, and the leg portions are brought into contact with and supported by the inner wall surface of the air conditioning duct to fix the entire device in a predetermined position. Next, when the compressed air is supplied to the air motor to rotate the air motor, the air hose connected to the air outlet of the air motor also rotates and blows the compressed air while hitting the inner wall surface of the air conditioning duct. As a result, the dust adhering to the inner wall surface of the air conditioning duct is separated and removed by the impact of being hit by the air hose and the double separating action of the compressed air, so that the air conditioning duct can be reliably cleaned.

According to the second aspect of the invention, in order to prevent dust from scattering toward the downstream side of the duct, a cylindrical sheet having a smaller diameter toward the downstream side and a bag-like filter for collecting dust are provided. It is connected to the rear of the leg. The cylindrical sheet is a non-breathable flexible sheet that is pushed outward from the center of the air conditioning duct by the air pressure of the air conditioning air flowing through the air conditioning duct, and at least the circumferential length of the seat and the inner circumferential length of the air conditioning duct are increased. Adhere to the inner wall surface of the air conditioning duct at the same position. Since this seat is supported by the umbrella-shaped legs, it can be used as an air conditioning duct that maximizes the circumferential length of the seat when the legs are fully opened. As a result, in the present invention, as long as the maximum circumferential length of the seat is larger than the inner circumferential length of the air conditioning duct, it is possible to accommodate air conditioning ducts of various sizes and shapes.

On the other hand, the dust adhering to the inner wall surface of the air-conditioning duct is separated and removed by the removing means, and is then flown by the air-conditioning air and collected by the sheet while being collected by the sheet. At this time, since the seat is in close contact with the inner wall surface of the air conditioning duct, dust can be prevented from scattering toward the downstream side, and the filter has air permeability, so stop the air conditioner. Can be cleaned without. Therefore, according to the present invention, it is possible to save the trouble of closing the inside of the air conditioning duct with an air bag and the like, and to prevent dust from scattering downstream of the cleaning section, so that cleaning can be performed efficiently and reliably.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of an air conditioning duct cleaning device according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an air conditioning duct cleaning device 10 according to a first embodiment of the present invention arranged in an air conditioning duct 12, and FIG. 2 is a side view thereof. As shown in FIG. 2, the air conditioning duct cleaning device 10 is
It is composed of a cleaning unit 14, a leg unit 16, and a dust collecting unit 18 in order from the front.

As shown in FIG. 1, the cleaning section 14 has an air motor 20 and a plurality of air hoses 22, 22, etc. The air motor 20 is rotatably provided at the tip of a main shaft 24. The air motor 20 is connected to a plurality of air outlets (not shown). Compressed air is supplied to the air motor 20 from a compressor 26 provided outside the air conditioning duct 12 via a hose 28. This hose 28 has one end connected to the compressor 26 and the other end as shown in FIG.
It is inserted into the air conditioning duct 12 through the second air outlet 30 and is connected to the tip opening 24A of the main shaft 24.
Compressed air from the compressor 26 is supplied to the hollow space of the main shaft 24 via a hose 28 and then supplied to the air motor 20. When compressed air is supplied to the air motor 20, the air motor 20 is rotated, and the compressed air is blown out from the air hoses 22, 22 ...

The air hoses 22, 22 ... Have flexibility and are formed to have a length that sufficiently hits the inner wall surface of the air conditioning duct 12. Therefore, when the air motor 20 is rotated,
The air hoses 22 and 22 blow compressed air while striking the inner wall surface of the air conditioning duct 12. The dust adhering to the inner wall surface of the air conditioning duct 12 is separated and removed by the impact of being hit by the air hoses 22, 22 ... And the double separating action of the compressed air.

As shown in FIG. 1, the leg portion 16 is composed of vertical links 32, 32 ... Having an umbrella structure and horizontal links 34, 34 .. Vertical link 3
2, 32 ... Are connected to the main shaft 24 via a mounting bracket 36 so as to be openable and closable. Further, the vertical links 32, 32 ... Are connected to a mounting member 36 via a spring 38, are urged in the opening direction by the spring 38, and are closed by a pulling operation of a wire 40. This wire 40 has one end connected to a wire pulling tool 42, and the other end through the air outlet 30, the air conditioning duct 12, and the hollow portion of the main shaft 24 as shown in FIG. It is connected to the tip. Therefore, when the wire 40 is pulled by the wire pulling tool 42, the vertical links 32, 32 ... Can be closed against the biasing force of the spring 38.

Tires 44 are respectively provided at the tips of the vertical links 32, 32. When the vertical links 32, 32 ... Are opened, the tires 44, 44 ... Contact the inner wall surface of the air conditioning duct 12. This allows the air conditioning duct cleaning device 10 to travel and move within the air conditioning duct 12.
On the other hand, the dust collecting portion 18 is composed of a cylindrical sheet 46 and a bag-shaped filter 48. The seat 46 is connected to the front ends of the four vertical links 32, 32, ... Positioned rearward, and the diameter of the seat 46 is reduced toward the rear. The sheet 46 is made of a material that is flexible and not breathable.

The filter 48 is connected to the small-diameter open end of the seat 46. The filter 48 is made of a breathable material. Next, the operation of the air conditioning duct cleaning device 10 configured as described above will be described. First, the leg portion 16 of the main cleaning device 10 is folded, and in this state, the main cleaning device 10 is moved from the air outlet 30 of the air conditioning duct 12 to the duct 12.
Insert inside. Next, the wire 40 is loosened by the wire pulling tool 42, the leg 16 is opened in the duct 12 in an umbrella shape, and the tires 44, 44 ... Fix 10 in place. Leg 1
When the seat 6 is opened, the seat 46 is spread outward from the center of the duct 12 by the air pressure of the conditioned air flowing in the duct 12, and at least the circumferential length of the seat 46 and the duct 1 are increased.
The inner peripheral length of 2 is in close contact with the inner wall surface of the duct 12 at a position where they are equal.

Next, compressed air is supplied from the compressor 26 to the air motor 20 while the main cleaning device 10 is moved. When the compressed air is supplied, the air motor 20 rotates, and the air hoses 22, 22 ... Rotate accordingly to blow the compressed air while striking the inner wall surface of the duct 12. As a result, the dust adhering to the inner wall surface of the duct 12 is separated and removed by the double peeling action of the impact and the compressed air hit by the air hoses 22, 22, ... Compared with the conventional device that blows only compressed air. Then, the duct 12 can be reliably cleaned.

The dust that has been peeled off is collected by the filter 48 while being collected by the sheet 46 while being made to flow by conditioned air. At this time, since the seat 46 is in close contact with the inner wall surface of the duct 12, it is possible to prevent dust from scattering toward the downstream side. Further, since the filter 48 is breathable, cleaning can be performed without stopping the air conditioner. You can Therefore, in the present embodiment, it is possible to save the trouble of closing the inside of the duct 12 with an air bag or the like, and to prevent dust from scattering downstream of the cleaning section, so that cleaning can be performed efficiently and reliably. it can.

Further, since the seat 46 of the present embodiment is supported by the umbrella-shaped leg portion 16, the air conditioning duct that maximizes the circumferential length of the seat 46 when the leg portion 16 is fully opened. Can correspond to. Therefore, if the maximum circumference of the seat 46 is larger than the inner circumference of the air conditioning duct,
It can be used for air conditioning ducts of various sizes and shapes. FIG.
FIG. 6 is a side view of an air conditioning duct cleaning device according to a second embodiment of the present invention. This air conditioning duct cleaning device is shown in Figure 1.
A suction fan unit 50 is provided in the air conditioning duct cleaning device 10 shown in FIG. The suction fan unit 50 is fixed to the small-diameter open end of the seat 46, and
2 is connected to a fan driving power source 52 installed outside the cable 2 via a cable 54. This fan drive power supply 5
When the suction fan unit 50 is rotated at 2, the front air-conditioned air can be forcibly sucked, so that the pressure loss due to the filter 48 can be prevented.

FIG. 4 is a side view of an air conditioning duct cleaning device according to the third embodiment of the present invention. This air conditioning duct cleaning device is an air conditioning duct cleaning device 10 shown in FIGS.
Is a simplified version of. That is, this cleaning device does not have a leg structure as a link structure, and a set (4) of vertical links 32, 32 ...
The vertical links 32, 32 are configured to open the umbrella with
This is a device in which a sheet 46 is connected to the ... to prevent dust from scattering downstream.

[0020]

As described above, according to the air conditioning duct cleaning device of the present invention, the dust attached to the inner wall surface of the air conditioning duct is impacted by an air hose and the compressed air is separated from the air hose by double peeling. Since the peeling removal is performed by the action, the air conditioning duct can be reliably cleaned.

Further, according to the present invention, a cylindrical sheet having a diameter reduced toward the downstream side and a bag-shaped filter for collecting dust are connected to the rear portion of the leg portion so that the inside of the air-conditioning duct is air-cooled. Since it is possible to save the trouble of closing the bag with a bag or the like and to prevent dust from scattering downstream of the cleaning section, cleaning can be performed without stopping the air conditioner.

[Brief description of drawings]

FIG. 1 is a perspective view showing an air conditioning duct cleaning device according to a first embodiment of the present invention.

FIG. 2 is a side view of the air conditioning duct cleaning device shown in FIG.

FIG. 3 is a side view showing an air conditioning duct cleaning device according to a second embodiment of the present invention.

FIG. 4 is a side view showing an air conditioning duct cleaning device according to a third embodiment of the present invention.

[Explanation of symbols]

 10 ... Air-conditioning duct cleaning device 12 ... Air-conditioning duct 14 ... Cleaning part 16 ... Leg part 18 ... Dust collecting part 20 ... Air motor 22 ... Air hose 24 ... Main shaft 26 ... Compressor 46 ... Seat 48 ... Filter

Claims (2)

[Claims] 1. A main shaft, a leg portion which is provided in an umbrella shape so as to be openable and closable with respect to the main shaft, and which is brought into contact with and supported by an inner wall surface of an air conditioning duct when the main shaft is opened, and compressed air attached to the main shaft. An air motor that is rotated when supplied and has an air outlet that blows out the compressed air, and the compressed air that is connected to the air outlet of the air motor and strikes the inner wall surface of the air conditioning duct by the rotation of the air motor. An air-conditioning duct cleaning device, comprising: an air hose that blows off air and removes dust adhering to the inner wall surface of the air-conditioning duct. 2. A main shaft, a leg portion provided to be openable and closable in an umbrella shape with respect to the main shaft and abuttingly supported by an inner wall surface of an air-conditioning duct when opened, and a drive unit provided at a front portion of the main shaft. Cleaning means for peeling and removing dust adhering to the inner wall surface of the air-conditioning duct, and a cylindrical flexible sheet connected to the tips of the leg portions and having a diameter decreasing toward the rear. An air conditioning duct cleaning device comprising: a member; and a bag-shaped breathable filter that is attached to a rear portion of the sheet member to collect the dust.