JPH07246177A - Suction pipe for vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a suction pipe for a vacuum cleaner excellent in functionality and practical use, by blowing out compressed air from the nozzle of the cleaner to float dusts in narrow places and effectively absorbing dusts in a complicated places. CONSTITUTION:This suction pipe comprises: a wane wheel housing chamber 2, a compressed air generating chamber 3, therebetween a partition wall 1a; a wane wheel 5 equipped with a rotating shaft 4 fixed rotatably passing through the partition wall installed in the vane wheel housing chamber; a piston 8 with a piston rod 1 connected to the rotating shaft 4 through an eccentric shaft or a cam 6, installed in the compressed air generating chamber; an air intake part 9 and an air exhaust part 10, each connected to the compressed air generating chamber 3 through an intake check valve 11; and a blowing opening 12 of the air exhaust part, 10 formed in the vicinity of a suction opening of the suction pipe, passing through inside the wall thickness of the suction pipe. The blowing opening of the air exhaust part is made flat, and vertical to the suction flow. A flat valve is attached slidably on the flat surface of the opening, which holds a plurality of air ejecting holes of different blowing directions.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction pipe of a vacuum cleaner which is connected to a suction port of a vacuum cleaner and blows compressed air to lift and suck dust.

[0002]

2. Description of the Related Art Conventional electric vacuum cleaners collect dust only by intake air and are not suitable for cleaning complicated or fine parts. For this reason, recently, in order to clean windows, shovels of shoji screens, and sills of aluminum sashes, thin suction ports and suction pipes with brushes are sold, but these suction pipes are used. Even then, it was not possible to completely remove the fine dust.

[0003]

SUMMARY OF THE INVENTION In view of the above-mentioned reasons, the main object of the present invention is to remove compressed dust from a tip of a vacuum cleaner to remove fine dust and to suck complex dust. It is also an object of the present invention to provide a suction tube of a vacuum cleaner having excellent functionality and practicality.

[0004]

The suction tube of the vacuum cleaner of the present invention rotates the impeller in the impeller housing chamber of the suction tube by the air sucked by the electric vacuum cleaner, transmits the rotational motion of the impeller to the rotating shaft, and causes eccentricity. By converting the rotational movement into vertical movement by the shaft or cam, the piston in the compressed air generation chamber is moved up and down, the air taken in from the outside air introduction part is compressed and blown out from the outlet of the outside air discharge part, and the dust is lifted up. At the same time, the floating dust is sucked from the suction port.

Further, a plate-like valve body having a flat surface around the opening of the air outlet and provided with a plurality of ejection holes having different blowing directions is slidably attached, and the plate-like valve body is slid. Thus, the ejection holes can be selectively communicated with the blowout port, the ejection direction can be switched, and the ejected directions are periodically changed to more strongly remove the adhered dust.

[0006] In addition, the opening of the air outlet is formed perpendicular to the suction flow at a constant angle to generate a vortex in the compressed air,
It is intended to further enhance the separation of dust and improve the suction tube cleaning ability.

[0007]

According to a first aspect of the present invention, there is provided a vacuum cleaner having a suction port provided at a tip end thereof, which is provided with a vacuum cleaner. The suction pipe is provided with an impeller storage chamber and a partition wall to generate compressed air. A chamber is formed, and an impeller equipped with a rotary shaft is installed in the impeller storage chamber.The rotary shaft is rotatably attached to the side walls of the impeller storage chamber and the compressed air generation chamber by penetrating partition walls and rotating. The piston is installed in the compressed air generation chamber by connecting to the piston shaft that enables the piston to reciprocate through the shaft and the eccentric shaft or cam, and the compressed air generation chamber is connected to the outside air introduction part via the introduction side check valve. The external air discharge part is formed through the discharge side check valve while being formed, and the air outlet of the external air discharge part is formed in the vicinity of the suction port of the suction pipe through the meat pressure part of the suction pipe. In the configuration of 2, the opening of the outlet of the outside air discharge portion formed near the suction port of the suction pipe is formed into a flat surface, A plate-shaped valve body is provided slidably, and a plurality of ejection holes having different blowing directions are provided in the plate-shaped valve body. Further, the structure of claim 3 is formed near the suction port of the suction pipe. The opening of the blowout port of the outside air discharge part is formed perpendicular to the suction flow and at a constant angle.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION A suction pipe of a vacuum cleaner according to the present invention will be described below with reference to the drawings of the embodiments.

FIG. 1 is a plan view seen from the suction port side of a suction pipe of a vacuum cleaner according to claim 1 of the present invention.
1 is a schematic cross-sectional view taken along the line AA ′ of FIG. 1, FIG. 3 is a plan view seen from the suction port side of a suction pipe of a vacuum cleaner according to claim 2 of the present invention, and FIG. 3 is a schematic sectional view taken along line AA ′ of FIG. 3, FIG. 5 is a schematic sectional view taken along line BB ′ of FIG.
6 is a plan view seen from the suction port side of the suction pipe of the vacuum cleaner according to claim 3 of the present invention, and FIG.
FIG. 8 is a schematic cross-sectional view taken along the line A ′, FIG. 8 is a schematic cross-sectional view of the air outlet of claim 3, and FIG. 9 is an explanatory schematic view showing a dust suction state of claim 3.

The present invention relates to a suction pipe 1 connected to a suction port of a vacuum cleaner. Claim 1 of the present invention claims that the suction pipe 1 includes an impeller storage chamber 2 and a partition wall 1a. Then, the compressed air generating chamber 3 is formed, and the impeller 5 equipped with the rotating shaft 4 is provided in the impeller housing chamber 2. The rotating shaft 4 is provided in each of the impeller housing chamber 2 and the compressed air generating chamber 3. Partition wall 1 on the side wall 1b
a is pierced by passing through a and is connected to a piston shaft 7 that allows the piston 8 to reciprocate through a rotary shaft 4 and an eccentric shaft or a cam 6, and the piston 8 is internally provided in the compressed air generation chamber 3 so that compressed air is generated. The outside air introducing portion 9 is introduced into the generating chamber 3 via the introduction side check valve 11.
And the outside air discharge portion 10 is formed via the discharge side check valve 11, and the blowout port 12 of the outside air discharge portion 10 is the suction pipe 1
It is formed in the vicinity of the suction port 13 of the suction pipe 1 through the meat pressure portion, and blows out and sucks at the same time, blows compressed air to raise dust and sucks it.

In this embodiment, as shown in FIG.
2 are branched at the wall pressure portion of the side wall 1b of the suction pipe 1 to form a plurality around the suction port 13, but a single outlet 12
It is also possible to form a plurality of suction ports 13 around the circumference of the, or a single outlet 12 and suction port 13 can be additionally provided. Furthermore, the suction pipe 1, the suction port 13 and the outlet 12 can be traversed. The surface shape is a circle in the embodiment, but the shape is not limited.

As shown in FIG. 2, the compressed air blown out from the blower outlet 12 is generated by the air sucked by the electric vacuum cleaner as a power source, and the sucked air causes the impeller storage chamber 2 of the suction pipe 1 to move. After rotating the impeller 5 inside, the rotary motion of the impeller 5 is transmitted to the rotary shaft 4 and the rotary motion is converted into vertical motion by the eccentric shaft or the cam 6, and then the piston 8 in the compressed air generating chamber 3 is vertically moved. The air taken in from the outside air introduction portion 9 is compressed and is blown out from the outlet 12 of the outside air discharge portion 10.

Further, the check valve 11 provided in the outside air introduction portion 9 and the outside air discharge portion 10 formed in the compressed air generating chamber 3 may be any one as long as the structure allows the air to flow in one direction. In the outside air introducing portion 9, the piston 8 is closed when it approaches the check valve 11 and opens when it goes away, and in the outside air discharging portion 10, when the piston 8 approaches the check valve 11, it opens and closes when it goes away. is there.

The compressed air generated in the compressed air generating chamber 3 is discharged from the outside air discharge portion 10 by the piston 8,
When the wall thickness part of the side wall 1b of the suction pipe 1 penetrates in a tubular shape and is discharged to the outside from the air outlet 12 formed in the vicinity of the suction port 13, when there are a plurality of air outlets 12, the wall pressure part of the side wall 1b Is to branch.

When the suction pipe 1 of the present invention is connected to the suction port of the electric vacuum cleaner and the electric power of the electric vacuum cleaner is turned on, suction of air is started from the suction port 13, and the impeller 5 is rotated by the suction, The piston 8 moves up and down through the rotary shaft 4, the eccentric shaft or the cam 6, and the piston shaft 7, and the air introduced from the outside air introduction portion 9 is compressed and passes through the outside air discharge portion 10 to blow out the air outlet 1
2, and as a result, dust is separated from the adhering surface by the compressed air blown out from the air outlet 12 and is sucked together with the intake air from the suction port 13.

3, 4 and 5 show a suction pipe 1 of a vacuum cleaner according to claim 2 of the present invention. An outside air discharge portion formed near the suction port 13 of the suction pipe 1. The opening 12a of the blowout port 12 of 10 is formed in a flat surface, a plate-like valve body 14 is attached to the flat surface so as to be slidable, and a plurality of ejection holes 15 having different blowing directions are provided in the plate-like valve body 14. Yes, a plurality of outlets 12 are provided around the suction port 13, and a plate-shaped valve element 14 installed on the upper surface of the outlet 12 is slid to blow out the outlet 12.
By making the ejection hole 15 communicate with the ejection hole 15, the ejection direction can be selected, and the outlet 12 can be freely opened and closed. Although not shown in the embodiment, the plate-shaped valve body 14 is used as a motor actuator or the like. By using it, it is slid periodically to switch the ejection direction periodically to make the separation of dust stronger.

In order to make the plate-shaped valve body 14 slid periodically, it is desirable that the plate-shaped valve body 14 has an annular shape, but if it is a structure that enables selection of the ejection direction, it will have a plate-like shape. The shape of the valve body 14 does not matter.

The suction pipe 1 of the vacuum cleaner according to claim 3 of the present invention shown in FIGS. 6, 7 and 8 is the outside air discharge portion 10 formed near the suction port 13 of the suction pipe 1. Outlet 12
The opening 12a is formed perpendicular to the suction flow and at a constant angle, and a vortex is generated in the compressed air.

As shown in FIG. 7, the opening 12a of the outlet 12 is formed vertically and at a constant angle by raising the portion of the outlet 12 of the side wall 1b from other portions, and the axis of the suction pipe 1 is centered. Compressed air is blown out in the direction of drawing a spiral circle to generate a swirl of the air. As shown in FIG. 6, the suction pipe 1 has a rectangular cross section, and outlets 12 are formed at four corners, and a suction port 13 is formed at the center of the rectangle. It may be formed.

Further, the outlet 12 for generating the vortex according to the present invention.
Is separated from the main body of the suction pipe 1, and the opening 12a of the outlet 12 of the main body is a flat surface, and the plate-shaped valve body 14 having the vortex generation outlet 12 formed on the flat surface is slidable. It is more practical if it is attached so that the outlet 12 can be opened and closed freely.

[0021]

As described above, according to the present invention, unlike the conventional suction tube of the vacuum cleaner that only sucks, the suction and the blowing are performed at the same time, the dust is lifted by the blowing of the compressed air, and the floating dust is sucked. By sliding the plate-shaped valve element, it is possible to select the jetting direction of the compressed air, and by making the opening of the air outlet an eddy current generation direction, it becomes easier to remove fine dust. It improves the cleaning power.

[0022]

[Brief description of drawings]

FIG. 1 is a plan view seen from a suction port side of a suction pipe of a vacuum cleaner according to claim 1 of the present invention.

FIG. 2 is a schematic cross-sectional view taken along the line A-A ′ of FIG.

FIG. 3 is a plan view seen from the suction port side of the suction pipe of the vacuum cleaner according to claim 2 of the present invention.

FIG. 4 is a schematic cross-sectional view taken along the line A-A ′ of FIG.

5 is a schematic cross-sectional view taken along the line B-B ′ of FIG.

FIG. 6 is a plan view seen from the suction port side of the suction pipe of the vacuum cleaner according to claim 3 of the present invention.

FIG. 7 is a schematic cross-sectional view taken along the line A-A ′ of FIG.

FIG. 8 is a schematic cross-sectional view of the air outlet of claim 3.

FIG. 9 is an explanatory schematic diagram showing a suction state of dust according to claim 3;

[Explanation of symbols]

 1 suction pipe 1a partition wall 1b side wall 2 impeller storage chamber 3 compressed air generation chamber 4 rotary shaft 5 impeller 6 eccentric shaft or cam 7 piston shaft 8 piston 9 outside air introduction part 10 outside air discharge part 11 check valve 12 blowout port 12a opening 13 Suction Port 14 Plate-shaped Valve Body 15 Jet Hole

Claims (3)

[Claims] 1. A suction pipe having a suction port at a tip end attached to a vacuum cleaner, wherein a compressed air generation chamber is formed in the suction pipe by interposing an impeller storage chamber and a partition wall. An impeller equipped with a rotary shaft is installed in the storage chamber, and the rotary shaft is axially attached to the side walls of the impeller storage chamber and the compressed air generation chamber by penetrating partition walls, and the rotary shaft and the eccentric shaft or cam. The piston is installed in the compressed air generation chamber by connecting to the piston shaft that allows the piston to reciprocate through the compressed air generation chamber, and an outside air introduction portion is formed in the compressed air generation chamber via an introduction side check valve and discharged. An outside air discharge portion is formed through a side check valve, and a blowout port of the outside air discharge portion is formed near the suction port of the suction pipe through the meat pressure portion of the suction pipe. tube. 2. The suction pipe of the vacuum cleaner according to claim 1, wherein the opening of the air outlet of the outside air discharge portion formed in the vicinity of the suction port of the suction pipe is formed into a flat surface and is slidable to the flat surface. A suction pipe for a vacuum cleaner, characterized in that a plate-shaped valve body is attached to the plate-shaped valve body, and the plate-shaped valve body is provided with a plurality of ejection holes having different blowing directions. 3. The suction pipe of the vacuum cleaner according to claim 1, wherein the opening of the air outlet of the outside air discharge portion formed in the vicinity of the suction port of the suction pipe is formed vertically and at a constant angle with respect to the suction flow. A vacuum cleaner suction tube.