JPH119508A - Vacuum cleaner conversion attachment into re-circulation type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable to convert a normal vacuum cleaner into a re-circulation type vacuum cleaner on use by connecting an air collection member for collecting an exhaust covering an exhaust port of the body of the suction cleaner to a sucking member to be connected to a suction port of the body of the vacuum cleaner with a re-circulation pipe to feed the exhaust into the sucking member. SOLUTION: An electric blower 2 and a dust collection filter 3 are built into the body 1 of a vacuum cleaner, air is sucked from a suction port 4 at a front end thereof to remove dust with a dust collection filter 3 and then, discharged from an exhaust port 4 at a rear end thereof. An air collection member 7 of an attachment 6 collects an exhaust discharged at the exhaust port 5 covering the exhaust port 5 of the body 1 of the suction cleaner, one end of a flexible re-circulation pipe 8 is connected to the air collection member 7 and a blowoff port 13 formed at the tip of the re- circulation pipe 8 is opened into the sucking member 12. The attachment 6 collects the exhaust by the air collection member 7 to be sent to the sucking member 12 by the re-circulation pipe 8 and then, blown into the sucking member 12 from the blowoff port 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an attachment for converting a suction cleaner used at home or the like into a recirculation type suction cleaner for recirculating air sucked from a suction member to the suction member again. It is.

[0002]

2. Description of the Related Art Conventionally, a suction cleaner is widely used. An electric blower in a main body sucks dust together with air from a suction member and collects the dust with a dust filter in the main body. It was to be discharged outside.

[0003] However, in this case, fine dust that cannot be collected by the dust filter may be scattered into the room together with the exhaust gas, or the exhaust gas may raise dust on the floor.
There has been proposed a recirculation-type suction cleaner that recirculates the sucked air to the suction member without discharging the air to the outside.

[0004]

However, these are designed and manufactured from the beginning as a recirculation type vacuum cleaner, and it is not possible to use a commercially available ordinary vacuum cleaner as the recirculation type vacuum cleaner. Can not.

The present invention has been made in view of the above circumstances, and has as its object to provide an attachment which can be attached to a normal suction cleaner and converted into a reflux-type suction cleaner for use. Things.

[0006]

According to the present invention, there is provided an air collecting member which covers an exhaust port of a suction cleaner body and collects exhaust gas;
A suction member coupled to the suction port of the suction cleaner body,
A recirculation pipe connects the air collecting member and the suction member and sends exhaust gas into the suction member.

In the attachment of the present invention, a turbine driven by exhaust gas recirculating in the recirculation path is provided in a recirculation path of exhaust gas from the air collecting member to the suction member, and the turbine is provided in the suction member. It is preferable to provide a rotating brush that rotates in conjunction with it.

[0008] Further, a relief valve operated by the temperature of the exhaust gas is provided in a part of the recirculation path of the exhaust gas from the air collecting member to the suction member, and the relief valve is always closed. It is preferable that the relief valve is opened to discharge exhaust gas by exceeding the pressure.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a suction cleaner to which an attachment of the present invention is attached. Reference numeral 1 denotes a suction cleaner main body, in which an electric blower 2 and a dust collecting filter 3 are incorporated. Air is sucked in from a front end intake port 4, dust in the air is removed by a dust filter 3, and then discharged from a rear end exhaust port 5.

Reference numeral 6 denotes an attachment of the present invention. In the attachment 6, reference numeral 7 denotes the suction cleaner main body 1.
Is a gas collecting member that covers the exhaust port 5 and collects exhaust gas discharged from the exhaust port 5. The air collecting member 7 is made of an elastic material such as soft rubber, and is appropriately deformed or partially cut out according to the shape and structure of the exhaust port 5 so as to be air-tightly connected to the periphery of the exhaust port 5. I have.

Reference numeral 8 denotes a flexible return pipe, one end of which is connected to the air collecting member 7 and the suction cleaner body 1 and the suction hose 9 connected to the suction port 4 of the suction cleaner body 1. And it is attached along the suction pipe 10.

The reflux pipe 8 may have a circular cross section, but it is difficult to follow the suction hose 9 or the like, so that the cross section is crescent-shaped as shown in FIG. It is preferable to fit along the suction hose 9 or the suction pipe 10 and to join them together with the double-sided adhesive tape 11 or the like.

Reference numeral 12 denotes a suction member attached to the tip of the suction pipe 10, and an air outlet 13 formed at the tip of the reflux pipe 8 opens into the suction member 12. The suction member 12 constitutes a part of the attachment of the present invention. However, the suction member 12 in a commercially available suction cleaner may have a through hole and a blowout port 13 attached thereto. .

Further, in the present invention, a relief valve 15 which is operated by the heat of the exhaust gas is provided in an exhaust gas recirculation path 14 from the air collecting member 7 to the suction member 12, and when the temperature of the exhaust gas rises, this relief valve 15 It is preferable to release the exhaust gas to the outside.

FIG. 3 shows an example of the relief valve 15, and FIG. 3A shows the relief valve 15 provided on the air collecting member 7.
A relief hole 17 is formed in the wall surface of the connecting pipe 16 connected to the reflux pipe 8 of the air collecting member 7, and the relief hole 17 is always closed by the valve element 18 from the inside. The valve element 18 is made of a shape memory alloy. When the temperature of the valve element 18 becomes higher than a predetermined temperature, the valve element 18 is deformed as shown by a dashed line, and the exhaust hole 17 is opened to discharge exhaust gas to the outside.

FIG. 3 (b) shows a relief valve 15 provided at a blow-out port 13 for blowing exhaust gas into the suction member 12. A relief hole 17 is formed in a wall surface of the blow-out port 13 and the release hole 17 is provided. A valve body 18 made of a shape memory alloy is mounted inside the inside, and the escape hole 17 is normally closed by the valve body 18, and when the temperature becomes higher than a predetermined temperature, the valve body 18 is deformed to open the escape hole 17. Has become.

FIG. 4 shows another example of the suction cleaner to which the attachment of the present invention is attached, in which the lower suction member 12 of the suction cleaner main body 1 is attached.
The suction port 4 is directly connected to the suction member 12 and is operated by a handle 19 protruding from an upper portion of the suction cleaner main body 1.

An electric blower 2 and a dust collecting filter 3 are built in the suction cleaner main body 1.
The air inside the suction member 12 is sucked by the suction member 12
The air is sucked through an air inlet 4 formed at the rear of the vehicle, dust contained in the air is collected by the dust filter 3, and the exhaust air is exhausted to the outside through an air outlet 5 formed at the upper front. ing.

The attachment 6 is connected to the exhaust port 5.
The air collecting member 7 is connected to the air collecting member 7 to collect the exhaust gas, send the exhaust gas to the suction member 12 by the return pipe 8, and blow the exhaust gas into the suction member 12 at the outlet 13.

An air turbine 20 driven by exhaust air blown out from the air outlet 13 and a rotating brush 21 rotating in conjunction with the air turbine 20 are provided in the suction member 12. To drive the air turbine 20 and transmit its power to the rotating brush 21 for rotation. The rotating brush 21 scrapes out and sucks in dust such as a carpet.

[0021]

According to the present invention, the air collecting member 7 is attached to the exhaust port 5 of the suction cleaner main body 1, and the suction member connected to the suction port 4 directly or through the suction hose 9 and the suction pipe 10 to the return pipe 8. By coupling 12, a normal suction cleaner can be converted to a recirculation type suction cleaner.

That is, in a normal suction cleaner,
The air in the suction member 12 is sucked from the intake port 4 by the electric blower 2, and after the dust is removed by the dust collection filter 3, the air is exhausted from the exhaust port 5. Thus, by attaching the attachment 6 of the present invention, the exhaust gas discharged from the exhaust port 5 is collected by the air collecting member 7, sent to the suction member 12 by the return pipe 8, and is sucked from the air outlet 13 by the suction member 13. 1
It is blown into 2 and allowed to reflux.

According to the second aspect of the present invention, the outlet 1
The air turbine 20 is rotated by the exhaust air blown out from the rotary shaft 3, and the rotary brush 21 is rotated by the power of the air turbine 20.

In the present invention, when the electric blower 2 operates and generates heat, the exhaust heats the heat, and the air returns to the suction member 12 again and is sucked by the electric blower 2. Therefore, each time the recirculating air passes through the electric blower 2, the air is heated, and the electric blower 2 may become hot without being cooled.

According to the third aspect of the present invention, a relief valve 15 is provided in a part of the recirculation path 14 for sensing and opening the temperature and opening and closing the valve. The body 18 deforms and the relief valve 15 opens,
High-temperature exhaust gas is released to the outside through the escape hole 17.

Since the released air does not return to the suction member 12, the suction member 12 draws cool air from the surroundings, and the cool air cools the electric blower 2 to prevent overheating. When the temperature of the exhaust gas falls below the predetermined temperature, the relief valve 15 is closed again and the discharge of the exhaust gas is stopped.

[0027]

According to the present invention, therefore, the attachment 6 of the present invention can be converted into a recirculation type suction cleaner by attaching the attachment 6 to a normal suction cleaner, and the sucked air is returned to the suction member 12. Therefore, the air is not released to the outside, the dust is not scattered together with the released air, and the dust is not rolled up by the released air.

According to the second aspect of the present invention, it is possible to scrape out and suck in dust that has entered the hair leg of a carpet or the like by the rotating brush 21 and to use the rotating brush 21.
Is provided in the recirculation path 7, so that the dust contained in the air to be driven does not contaminate the air turbine 20 or prevent the dust from being clogged and hinder the operation.

Further, according to the third aspect of the present invention, the exhaust gas which has been heated by the heat of the electric blower 2 is discharged to the outside, and the outside cool air is taken in and recirculated accordingly, so that the electric blower 2 becomes unnecessary. No overheating.

[Brief description of the drawings]

FIG. 1 is a central longitudinal sectional view showing an example of a suction cleaner equipped with an attachment of the present invention.

FIG. 2 is an enlarged cross-sectional view showing an example of a state in which the reflux pipe in FIG. 1 is arranged along a suction hose and a suction pipe.

FIG. 3 is a central longitudinal sectional view showing an example of a relief valve.

FIG. 4 is a central longitudinal sectional view showing another example of the suction cleaner equipped with the attachment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Suction cleaner main body 4 Intake port 5 Exhaust port 7 Air collection member 8 Reflux pipe 12 Suction member 14 Reflux path 15 Relief valve 20 Air turbine 21 Rotary brush

Claims (3)

[Claims] 1. An air collecting member (7) for covering an exhaust port (5) of a suction cleaner main body (1) to collect exhaust gas and a suction port (4) of the suction cleaner main body (1). Suction member (1
2) and a recirculation pipe (8) that connects the air collecting member (7) and the suction member (12) to send exhaust gas into the suction member (12). Attachment for reflux type conversion 2. A turbine (20) driven by exhaust gas recirculating in the recirculation path (14) is provided in an exhaust gas recirculation path (14) from the air collecting member (7) to the suction member (12). A rotating brush (21) that rotates in conjunction with the turbine (20) in the suction member (12);
The attachment for the reflux type conversion in the suction cleaner according to claim 1, characterized in that the attachment is provided. 3. A relief valve (15), which is activated by the temperature of exhaust gas, is provided in a part of an exhaust gas recirculation path (14) from the air collecting member (7) to the suction member (12). The valve (15) is closed, and when the temperature of the exhaust gas exceeds a predetermined temperature, the relief valve (15) is opened to discharge the exhaust gas.
Attachment for recirculation type conversion in suction vacuum cleaner described in