KR20010054945A - Vacuum cleaner having air blower - Google Patents

Abstract

PURPOSE: A vacuum cleaner having an air ejecting device is provided to scatter dust in a place hard to clean, and to separate and collect dust by sucking air. CONSTITUTION: A vacuum cleaner is composed of a cleaner body(3) having an intake port(5); an expansion pipe(7) longitudinally expanded, and separably combined with the intake port of the cleaner body; and an air injector(33) installed in an air passage of the expansion pipe. The air injector consists of a cylindrical blow-off body, two blower fans in the blow-off body, and a blow-off hose(61) guiding air from the blow-off body into a cleaning place. A discharge port of the blow-off hose is corresponded to a corner or a bottom of furniture such as parts hard to clean with a brush(15). The air is ejected along the passage of the blow-off hose, and the dust is scattered.

Description

Vacuum cleaner with air blower {Vacuum cleaner having air blower}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner having an air ejecting device capable of dispersing dust collected in an area to be cleaned which is difficult to clean, and then suctioning it with air.

The vacuum cleaner makes the inside of the main body vacuum by forcibly circulating the air by the rotation of the motor, and at this time, the air that inhales the dust and contaminants on the surface to be cleaned by the strong air flow caused by the pressure difference generated between the inside and the outside of the main body. The device is cleaned by suction.

This vacuum cleaner 1 is generally, as can be seen in Figure 1, the cleaning main body 3 having a suction port 5, the longitudinal direction detachably coupled to the suction port 5 of the cleaning main body 3 It consists of a flexible tube (7) that can be stretched and a brush (15) coupled to the distal end of the flexible tube (7). The cleaning body 3 has a dust collecting chamber 11 for collecting dust and a load driving chamber 21 in which a suction motor (23 in FIG. 2) for sucking outside air into the dust collecting chamber 11 is incorporated. These dust collecting chambers 11 and the load driving chamber 21 are divided by partition walls 20. The partition 20 is provided with an air passing hole (19 in FIG. 2).

The dust collecting chamber 11 is disposed upstream of the air flow direction with respect to the load driving chamber 21. And it has an upward opening 4, and the opening-closing cover 6 which can be rotated and opened in the front of this opening 4 is couple | bonded. In the dust collecting chamber 11, a replaceable dust bag 13 is incorporated. The dust bag 13 collects dust from the dust-containing air flowing through the inlet 5. In addition, a handle part 29 for a user is installed at an upper portion of the load driving chamber 21, and rotatable wheels 27 are provided at both sides in a lower region.

On the other hand, the expansion pipe (7) has a corrugated pipe (9) that extends and contracts in the longitudinal direction and an extension pipe (8) for engaging with the corrugated pipe (9). The hand grip 10 is formed in the mutual coupling area | region of these corrugated pipe 9 and the extension pipe 8. As shown in FIG. A brush 15 is coupled to the end of the extension pipe 8, and the brush 15 contacts the floorboard or carpet in the room. The bottom surface of the brush 15 is formed with an inlet (not shown) extending along the longitudinal direction thereof.

On the other hand, reference numeral 25 is a code wound in the cleaning body 3 and can be withdrawn.

With this configuration, FIG. 2 is a cross-sectional view of FIG. 1 showing the air flow state of a conventional vacuum cleaner. When power is applied, as shown in the figure, the suction motor 23 installed in the cleaning main body 3 rotates at high speed, and at this time, the suction fan 24 fixed to the shaft also rotates at the same speed. Then, the air in the cleaning base body 3 is forcedly circulated, whereby the interior is in a high vacuum state.

In this case, a pressure difference occurs between the inside and the outside of the cleaning body 3, and air is sucked in through the inlet of the brush 4 by this pressure difference. At this time, when the brush 4 is in contact with the surface to be cleaned, for example, a carpet or a sheet, air containing dust is sucked in through the inlet of the brush 4.

In this way, the dust-containing air sucked in passes through the expansion pipe 7 and flows into the dust bag 13 in the dust collecting chamber 11 through the suction port 5 of the cleaning base body 3. At this time, the dust does not pass through the fine air hole (not shown) formed in the dust bag 13 is collected in the dust bag 13. On the other hand, the air passing through the air hole is clean air from which dust is removed, and flows into the load driving chamber 21 through the air passing hole 19 formed in the partition wall 20. The air introduced into the load driving chamber 21 is discharged to the outside through the inlet 26 through the suction motor 23.

By the way, in the area | region to be cleaned, for example, it is difficult to clean with a conventional vacuum cleaner, for example, the floor or the edge area | region of indoor furniture or a kitchen utensil exists. In this case, the user is inconvenient to bend the waist and even bend the knee and put the brush of the expansion tube to collect the dust hard, there is a dust that is difficult to inhale even using this method.

Accordingly, an object of the present invention is to take account of these problems in the related art, and to allow the dust of the area to be cleaned to be difficult to clean using an existing vacuum cleaner, and then to easily suck and collect the dust blowing process. It is to provide a vacuum cleaner having a.

1 is a perspective view of a conventional vacuum cleaner,

2 is a cross-sectional view of FIG.

3 is a perspective view of a vacuum cleaner having an air blowing device according to the present invention;

4 is a partially enlarged exploded perspective view of FIG. 3, specifically showing an air blowing device according to the present invention; and

5 is a cross-sectional view of the combination of FIG.

Explanation of symbols on the main parts of the drawings

3: cleaning basic body 7: expansion tube

11: dust collection room 13: dust bag

21: load driving room 33: air blowing device

34: ejection body 36, 40: intake vent

41, 46: Blower fan 45, 49: Storage room

51: bulkhead 61: blowout hose

65: rotation axis

The above object, according to the present invention, in the vacuum cleaner, the cleaning main body having a dust collecting chamber; A expansion pipe coupled to the cleaning main body to guide the dust-containing air into the dust collecting chamber of the cleaning main body; And means detachably coupled to a flow path of the expansion pipe, for sucking outside air and blowing it toward the surface to be cleaned.

Here, the air blowing means forms a pair of first and second accommodation chambers partitioned by partition walls, inlet and exhaust ports are formed in each storage chamber, and either one of the first and second accommodation chambers. A jet main body whose exhaust port communicates with a flow path of the expansion pipe; A blowing hose coupled to an exhaust port of one of the first and second accommodation chambers; And a pair of blowing fans which are respectively installed in the first and second accommodation chambers and are coupled to be coaxially integrally rotatable.

At this time, the cleaning main body includes a suction motor for sucking the outside dust-containing air into the dust collecting chamber through the expansion pipe; When the suction motor is driven, the pair of blowing fans are rotatable by the air sucked through the inlet port of the one side accommodating chamber and discharged through the exhaust port.

On the other hand, the expansion pipe, the downstream expansion pipe coupled to the cleaning main body; A hand grip coupled to the downstream stretch tube; And an upstream telescopic tube detachably coupled to the hand grip and having a brush in contact with the surface to be cleaned; Preferably, the air blowing means is configured to be coupled to the hand grip alternately with the upstream expansion and contraction pipe.

Hereinafter, with reference to the accompanying drawings, it will be described in detail a preferred embodiment of the present invention. At this time, the same numbers are used for the same configurations and names.

3 is a perspective view of a vacuum cleaner having an air blowing device according to the present invention. As can be seen in this figure, the vacuum cleaner includes a cleaning main body 3 having a suction port 5 and a longitudinally expandable and expandable tube detachably coupled to the suction port 5 of the cleaning main body 3. 7) and an air blowing device 33 provided on the air flow path of the expansion pipe 7. Here, the cleaning main body 3 has the same configuration as described with reference to Figs. 1 and 2 of the prior art, and thus the description thereof will be replaced by the above.

On the other hand, the expansion pipe (7) is a downstream expansion pipe (9) coupled to the suction port of the cleaning main body, the hand grip 10 coupled to the end of the downstream expansion pipe (9), and the upstream side coupled to the hand grip The expansion pipe 8 is comprised. Here, the downstream flexible pipe 9 is formed of a corrugated pipe that is stretchable along the longitudinal direction. The upstream expansion and contraction pipe 8 is constituted by the accommodation pipe 63 and the plurality of extension pipes 61 and 62 that can be pulled out and retracted in the accommodation pipe 63. Brush 15 is coupled to the end of the extension pipe 61, the brush 15 is in contact with the floor or carpet in the room. The bottom surface of the brush 15 is formed with an inlet (not shown) extending along the longitudinal direction thereof.

The hand grip 10 is provided with a connecting portion 65 and a handle portion 64 protruding from the outer surface of the connecting tube portion 65 and the connecting tube portion 65 for mutually connecting the upstream flexible tube 8 and the downstream flexible tube 9. Consists of. The upstream expansion and contraction tube 8 and the air blowing device 33 are alternately coupled to the connecting tube portion 65 of the hand grip 10.

4 is a partially enlarged exploded perspective view of FIG. 3, which illustrates the air blowing device according to the present invention in detail. FIG. 5 is a cross-sectional view of FIG. 4. As can be seen from these figures, the air blowing device 33 includes a cylindrical blowing main body 34, a pair of blowing fans 41 and 46 accommodated in the blowing main body 34, and a blowing main body 34. And a blowing hose 61 for guiding the air blown out in the inside to the area to be cleaned.

The jet main body 34 has front and back cases 35 and 38 which are mutually coupled and form a predetermined storage chamber. The first intake opening 36 and the second exhaust opening 39 are formed on the plate surfaces of the front and rear cases 35 and 38 which face each other. Coupling grooves are formed on the inner circumferential surface of the second exhaust mechanism 39. Thereby, the jet main body 34 can be detachably couple | bonded with the front-end | tip of the downstream expansion-stranded tube 9. The first exhaust port 37 and the second intake port 40 are formed on the circumferential surfaces of the front and back cases 35 and 38, respectively.

In the jet main body 34, that is, in the storage chamber, a partition 51 in the vertical direction is provided, and the first accommodation chamber 45 on the side of the first intake port 36 and the second accommodation chamber on the side of the second exhaust port 39 ( 49). The partition wall 51 has a plate-shaped body, and the shaft hole 55 is formed in the center region of the plate surface. On the outer periphery of the partition 51, the flange part 52 bent in the horizontal direction is provided in the plate surface. The flange portion 52 is provided with a plurality of engaging grooves 54 at predetermined intervals along the longitudinal direction thereof.

The partition wall 51 can be fixed by the plurality of screws 59 penetrating through the coupling grooves 54 and fastened to the inner wall surface of the jet main body 34. As a result, the first accommodation chamber 45 and the second accommodation chamber 49 are formed in the jet main body 34.

Blowing fans 41 and 46 are accommodated in each of the first accommodation chamber 45 and the second accommodation chamber 49. These blowing fans 41 and 46 are each comprised by the fan case 44 and the fan case 44 formed in the circumferential direction in the fan case 44. As shown in FIG. A shaft groove 42 is formed at the center of the fan case. The shaft grooves 42 of each of the blowing fans 41 and 46 are coaxially coupled to both end portions of the rotating shaft 65 exposed to both sides through the shaft hole 55 formed in the partition wall 51. As a result, when the blower fan 46 on one side rotates, the blower fan 46 on the other side rotates integrally.

On the other hand, the ejection hose 61 is coupled to the first exhaust mechanism 37 formed on one side of the first accommodation chamber 45, that is, the first exhaust mechanism 37 formed on the circumferential surface of the front case 35. As a result, the air flowing out through the first exhaust mechanism 37 flows along the flow path of the blowing hose 61 and is discharged to the outside.

With this configuration, the present vacuum cleaner 31 can perform the general vacuum cleaning described with reference to FIGS. 1 and 2 of the related art, and at the same time, the dust existing in the region which is relatively difficult to clean is removed from the air blowing device 33. ) Can be scattered. The general vacuum is performed in a state in which the upstream stretch tube 8 is coupled to the hand grip 10, and a description thereof will be omitted.

In order to clean using the air blowing device 33, first, the upstream expansion and contraction pipe 8 is separated from the hand grip 10, and then the air blowing device 33 is engaged. At this time, the coupling groove is formed in the second exhaust mechanism 39 of the second accommodation chamber 49 of the jet main body 34, so that the operator can easily achieve the object. In this state, when power is applied, the suction motor 23 installed in the cleaning main body 3 rotates at high speed, and at this time, the suction fan 24 fixed to the shaft also rotates at the same speed. Then, the air in the cleaning base body 3 is forcedly circulated, whereby the interior is in a high vacuum state.

In this case, a pressure difference is generated between the inside and the outside of the cleaning main body 3, and the outside air is sucked in through the second intake port 40 of the second accommodation chamber 49 by this pressure difference, and the second exhaust port is discharged. It flows into the flow path of the downstream expansion pipe 9 through 39. Due to the flow of air, the second blowing fan 46 installed in the second accommodation chamber 49 rotates, and at this time, the first blowing fan in the first accommodation chamber 45 rotatably installed therein. (41) also rotates.

Then, the air in the 1st accommodating chamber 45 is discharged | emitted to the blowing hose 61 through the 1st exhaust vent 37 by the rotation of the 1st blowing fan 41. FIG. Then, since the inside of the first storage chamber 45 becomes a relatively low pressure state, outside air flows into the inside through the first intake port 36. As a result, a flow of air that is sucked through the first intake port 36 and discharged through the first exhaust port 37 is formed in the first accommodation chamber 45.

At this time, the operator corresponds the discharge port of the jet hose 61 to the area to be cleaned which is difficult to clean using the brush 15, that is, the corner area of the room or the floor surface of the furniture. Then, the air which flows along the flow path of the jet hose 61 and blows off will scatter the dust of the area which is difficult to clean. As a result, dust and the like can be prevented from being accumulated in a specific area such as an indoor light, while scattered dust can be present in a relatively easy to clean area. In this case, as described above, the brush 15 can be used to simply remove it.

As described above, according to the present invention, there is provided a vacuum cleaner having an air ejecting device that can be easily sucked and collected by dispersing dust in the area to be cleaned which is difficult to clean using an existing vacuum cleaner. do.

Claims (4)

In the vacuum cleaner, A cleaning main body having a dust collecting chamber; A expansion pipe coupled to the cleaning main body to guide the dust-containing air into the dust collecting chamber of the cleaning main body; And Removably coupled to the flow path of the expansion tube, the vacuum cleaner comprising a means for sucking the outside air to blow toward the surface to be cleaned. The method of claim 1, The air blowing means, A pair of first and second accommodation chambers formed by a partition wall is formed, inlet and exhaust ports are formed in each accommodation chamber, and an exhaust port of any one of the first and second accommodation chambers is a flow path of the expansion pipe. A blowout body in communication with; A blowing hose coupled to an exhaust port of one of the first and second accommodation chambers; And And a pair of blowing fans installed in the first and second accommodation chambers, respectively, and coupled to the shaft so as to be integrally rotatable. The method of claim 2, The cleaning main body includes a suction motor for sucking outside dust-containing air into the dust collecting chamber through the expansion pipe; When the suction motor is driven, the pair of blower fan is rotated by the air sucked through the inlet port of any one of the accommodation chamber and discharged through the exhaust port. The method of claim 1, The expansion pipe, A downstream expansion pipe coupled to the cleaning body; A hand grip coupled to the downstream stretch tube; And A upstream telescopic pipe detachably coupled to said hand grip and having a brush in contact with the surface to be cleaned; And said air blowing means is coupled to said hand grip alternately with said upstream telescopic tube.