KR100393578B1 - A back flow type vacuum cleaner - Google Patents

Abstract

Exhaust reflux vacuum cleaner of the present invention includes a head having a first suction hole and a second suction hole is formed to suck the cleaning material and the exhaust hole is formed next to the first suction hole; A main body including a driving unit, a dust collecting unit, and an exhaust collection chamber to suck and collect the cleaning material through the first suction hole of the head; A main suction channel formed between the first suction hole and the dust collecting unit; An exhaust reflux passage formed between one side of the exhaust collection chamber and an exhaust hole; An ejector and an auxiliary suction path formed between one side of the main suction path and the second suction hole, and an exhaust path for an ejector for guiding a part of the air in the exhaust collection chamber to the ejector. The cleaning material is sucked from the second suction hole by the generated negative pressure to be introduced into the dust collecting part through the main suction flow path, and is sucked into the first suction hole by using the air moved to the exhaust hole through the exhaust reflux flow path. It is possible to support the cleaning material, which is effective in improving the cleaning ability.

Description

Exhaust reflux vacuum cleaner {A back flow type vacuum cleaner}

The present invention relates to an exhaust reflux vacuum cleaner, and more particularly to an exhaust reflux vacuum cleaner that can improve the cleaning ability by forming a plurality of suction holes.

In general, the exhaust reflux vacuum cleaner sucks the cleaning material together with the air through the suction hole so that the cleaning material is filtered by the filter, and the air passing through the filter is returned to the suction hole to raise the cleaning material. .

1 is a cross-sectional view of an exhaust reflux vacuum cleaner according to the prior art, and FIG. 2 is a rear view of the head according to the prior art.

1 and 2, a conventional exhaust reflux vacuum cleaner has a suction hole 52 formed at a bottom thereof to suck a cleaning object (not shown), and an exhaust hole next to the suction hole 52. A head 50 in which 54 is formed; A driving unit 62 for providing a blowing force to suck the cleaning material through the suction hole 52 of the head 50, a dust collecting unit 66 for collecting the cleaning material sucked by the driving unit 60, and the An exhaust collection chamber 68 is formed, in which air passing through the dust collector 66 is collected, and is composed of a main body 60 hinged to one side of the head 50.

A suction flow path 70 is formed between the suction hole 52 and the dust collecting part 66 to allow the cleaning material to flow into the dust collecting part 66 together with external air through the driving of the driving part 62. Between the exhaust collection chamber 68 and the exhaust hole 54, the air collected in the exhaust collection chamber 68 after passing through the dust collecting part 66 is formed in the exhaust hole 54 next to the suction hole 52. The exhaust reflux flow path 76 is formed to be exhausted through to support the cleaning material.

On the other hand, the head 50 is provided with a wheel 56 to collect the cleaning material while moving the cleaner, the suction hole 52 is a brush 58 is rotatably mounted to help support the cleaning material. .

Conventional exhaust reflux vacuum cleaner configured as described above, when the driving unit 62 is driven in response to a user's pressing operation, the cleaning material is the outside air by the suction force inside the suction flow path 70 and the suction hole (52). And filtered along with the dust collector 66. In addition, the air carrying the cleaning material is collected in the exhaust collection chamber 68 through the driving unit 62, and then injected and exhausted into the exhaust hole 54 through the exhaust reflux flow path 76. ) Provide nearby cleaning materials so that the cleaning materials can be collected easily.

However, since the conventional exhaust reflux vacuum cleaner supports the cleaning material near the suction hole 52 on the flat bottom surface, the cleaning ability is improved, but in the case of carpet cleaning, the refluxed air is used to clean the cleaning material of the carpet. Recalling that there is a problem that reduces the cleaning ability.

The present invention has been made in order to solve the above problems of the prior art, the exhaust reflux vacuum cleaner to improve the suction capacity by forming a plurality of suction holes for sucking the cleaning material, by generating a negative pressure by using the exhaust reflux air The purpose is to provide.

1 is a cross-sectional view of the exhaust reflux vacuum cleaner according to the prior art,

2 is a rear view of the head according to the prior art,

3 is a cross-sectional view of the exhaust reflux vacuum cleaner according to the present invention,

4 is a rear view showing an embodiment of the head according to the present invention;

5 is a rear view showing another embodiment of the head according to the present invention.

<Explanation of symbols on main parts of the drawings>

2: first suction hole 3: brush

4: second suction hole 6: exhaust hole

10: head 20: main body

22: drive unit 24: dust collector

26: exhaust collection chamber 30: main suction passage

32: ejector 34a: first auxiliary suction channel

34b: second auxiliary suction passage 40: exhaust circulation passage

42: ejector 45: third suction hole

Exhaust reflux vacuum cleaner according to the present invention for solving the above problems is the first suction hole and the second suction hole is formed to suck the cleaning material, respectively, the head is formed with an exhaust hole next to the first suction hole; A driving unit for supplying a blowing force to suck the cleaning material through the first suction hole of the head, a dust collecting unit for collecting the cleaning material sucked by the driving unit, and an exhaust collection chamber for collecting the air passing through the dust collecting unit; Main body; A main suction flow path formed between the first suction hole and the dust collecting part such that cleaning material flows into the dust collecting part together with external air by driving of the driving part; An exhaust reflux flow passage formed between one side of the exhaust collection chamber and an exhaust hole so that air collected in the exhaust collection chamber supports a cleaning object; An ejector and an auxiliary suction channel disposed between one side of the main suction channel and the second suction hole to suck the outside air and the cleaning material by the negative pressure through the second suction hole to guide one side of the main suction channel; And an ejector exhaust passage formed between the other side of the exhaust collection chamber and the ejector to guide a part of the air in the exhaust collection chamber to the ejector.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a cross-sectional view showing the configuration of the main part of the exhaust reflux vacuum cleaner according to the present invention, Figure 4 is a rear view showing an embodiment of the head according to the present invention.

The exhaust reflux vacuum cleaner according to the present invention, as shown in Figure 3 and 4, the first suction hole 2 and the second suction hole 4 is formed to suck the cleaning material together with the outside air, respectively A head 10 having an exhaust hole 6 next to the first suction hole 2; A driving unit 22 for supplying a blowing force to suck the cleaning material through the first suction hole 2 of the head 10, and a dust collecting unit 24 for collecting the cleaning material sucked by the drive unit 22 is collected. A main body 20 including an exhaust collection chamber 26 in which air passing through the dust collecting part 24 is collected; A suction flow path 30 formed between the first suction hole 2 and the dust collecting part 24 so that cleaning material flows into the dust collecting part 24 together with external air by driving of the driving part 22; An exhaust reflux flow passage 40 formed between one side of the exhaust collection chamber 26 and the exhaust hole 6 so that air collected in the exhaust collection chamber 26 supports a cleaning object; Between the main suction channel 30 and the second suction hole 4 to suck the outside air and the cleaning material by the negative pressure through the second suction hole 4 to guide to one side of the main suction channel 30. The ejector 32 and the auxiliary suction flow path 34 disposed at the other side, and the other side of the exhaust collection chamber 26 and the ejector 32 to guide a part of the air in the exhaust collection chamber 26 to the ejector 32. It is comprised including the exhaust flow path 38 for ejectors formed in between.

The head 10 is connected to the lower side of the main body 20 by a hinge, the head 13 has a wheel 6 is installed to collect the cleaning material while moving the cleaner, the first suction hole Brush (3) is rotatably mounted to (2) to help support the cleaning material.

On the other hand, the exhaust hole 6 is formed on both sides of the first suction hole 2, respectively, the exhaust reflux flow path 40 is branched to both sides, as shown in Figure 4 the exhaust hole 6 ), An ejector 42 is disposed in one or both of the exhaust circulation passages 40 branched to the exhaust hole 6, and a third suction hole 45 is formed.

The driving unit 22 is a driving motor 22a which is operated by receiving a signal from a controller (not shown) in response to a user's pressing operation, and a fan 22b which is rotated in accordance with the driving of the driving motor 22a to generate suction force. It is composed of

The dust collector 24 is a centrifugal filter that allows the thick cleaning material to sink to the lower end using a centrifugal force.

The exhaust collection chamber 18 is formed inside the upper part of the main body 20 as a place where the cleaning material is filtered by the dust collecting part 24 and the air passing through the fan 22b and the motor 22a is collected.

The auxiliary suction channel 34 is disposed between the first auxiliary suction channel 34a disposed between the ejector 32 and the second suction hole 4, and between the ejector 32 and the main suction channel 30. And a second auxiliary suction passage 34b in which a narrow portion 34c is formed.

Referring to the operation of the present invention configured as described above are as follows.

First, when the driving motor 22a is driven according to the user's pressing operation, the cleaning material is externally driven by the suction force inside the first suction hole 2 and the suction flow path 30 by the rotation of the fan 22b. It is transported to the dust collecting part 24 together with the air of the filter. The air carrying the cleaning material is collected in the exhaust collection chamber 26 after passing through the fan 22b and the driving motor 22a and then injected into the exhaust hole 6 through the exhaust reflux flow passage 40. As the air is exhausted, the cleaning material next to the first suction hole 2 and the cleaning material stuck to the brush 3 are supported so that the cleaning material is easily collected.

Meanwhile, a part of the air collected in the exhaust collection chamber 26 is guided to the ejector 32 through the ejector exhaust passage 38, and passes through the suction nozzle part 34c to pass through the first auxiliary suction passage. The negative pressure is generated in the 34a and the second suction hole 4, and the external air and the cleansing material are caused by the negative pressure to allow the second suction hole 4, the first auxiliary suction channel 34a, and the second auxiliary suction. After being sucked into the main suction path 30 through the flow path 34a in turn, it is transported to the dust collector 24 along with the outside air and the cleaning material sucked through the first suction hole 2.

In addition, the air exhausted from the exhaust collection chamber 28 to the outside through the exhaust reflux flow path 40 and the exhaust hole 6 is external from the third suction hole 45 while passing through the ejector 42. The suction of air and the cleaning material to improve the suction ability of the cleaning material, and while maintaining the cleaning material next to the first suction hole (2) through the exhaust hole (6) again through the first suction hole (2) It is sucked into the suction flow path 30.

5 is a rear view showing another embodiment of the head according to the present invention.

As shown in FIG. 5, a venturi portion 48 is formed in one or both of the exhaust circulation passages 40 branched to the exhaust hole 6 in the head 10 of the present embodiment. The configuration is the same as in the above embodiment.

The filtered air moving from the exhaust collection chamber 28 to the exhaust hole 6 is filtered and generates negative pressure in the third suction hole 49 while passing through the venturi portion 48. The cleaning material is sucked through the third suction hole 49 and exhausted to the side of the first suction hole 2 through the exhaust hole 6.

Exhaust reflux vacuum cleaner of the present invention configured as described above is provided with four suction holes for sucking the cleaning material to improve the cleaning ability, the exhaust is returned to the first suction port through the exhaust hole to clean the cleaning material It is effective to maintain the level of clean.

In addition, the exhaust circulation is smoothly performed to improve hygiene of the cleaner.

Claims (3)

A head having a first suction hole and a second suction hole respectively formed to suck the cleaning object, and an exhaust hole formed next to the first suction hole; A driving unit for supplying a blowing force to suck the cleaning material through the first suction hole of the head, a dust collecting unit for collecting the cleaning material sucked by the driving unit, and an exhaust collection chamber for collecting the air passing through the dust collecting unit; Main body; A main suction flow path formed between the first suction hole and the dust collecting part such that cleaning material flows into the dust collecting part together with external air by driving of the driving part; An exhaust reflux flow passage formed between one side of the exhaust collection chamber and an exhaust hole so that air collected in the exhaust collection chamber supports a cleaning object; An ejector and an auxiliary suction channel disposed between one side of the main suction channel and the second suction hole to suck the outside air and the cleaning material by the negative pressure through the second suction hole to guide one side of the main suction channel; And an ejector exhaust passage formed between the other side of the exhaust collection chamber and the ejector to guide a part of the air in the exhaust collection chamber to the ejector. The method of claim 1, The exhaust holes are respectively formed at both sides of the first suction hole, and the exhaust circulation passage is branched from the head to communicate with each of the exhaust holes, and ejector is discharged to one or both of the exhaust circulation passages branched to the exhaust hole. And a third suction hole is formed in the exhaust reflux vacuum cleaner. The method of claim 1, The exhaust holes are respectively formed at both sides of the first suction hole, and the exhaust circulation flow path branched from the head communicates with each of the exhaust holes, and ventilated at one or both of the exhaust circulation flow paths branched to the exhaust hole. An exhaust reflux vacuum cleaner, characterized in that the rib portion and the third suction hole are formed.