KR20010104810A - Upright-type vacuum cleaner having cyclone dust-collecting apparatus - Google Patents

Abstract

The upright vacuum cleaner according to the present invention includes a cyclone dust collector that is detachably installed in a dust chamber of a cleaner body. The cyclone dust collector centrifugally collects various wastes contained in the air introduced through the suction brush. This cyclone dust collector includes an outer first cyclone cylinder for separating and collecting dust having a relatively large particle size, and an inner second cyclone cylinder for separating and collecting fine dust. The air including dust and dirt introduced through the suction brush flows in an oblique direction to the first cyclone cylinder through the air inlet of the cyclone cover to form a vortex air stream, whereby large dirt contained in the air is separated and collected. Air rising in reverse from the bottom of the first cyclone cylinder is then introduced into the second cyclone cylinder through the grill and the second air inlet of the second cyclone cylinder to form a vortex air stream, where fine dust is collected separately. Through this process, the air filtered fine dust is discharged to the outside through the air outlet pipe of the cyclone cover. That is, the air is separated and collected by filtration twice, and the collected dirt can be discarded and then remounted to be used semi-permanently.

Description

Upright-type vacuum cleaner having cyclone dust-collecting apparatus

The present invention relates to an upright type vacuum cleaner, and in particular, an upright type which can eliminate the use of a dust filter as a consumable by providing a cyclone dust collector which centrifugally separates and collects various wastes contained in air introduced through a suction brush. It relates to a vacuum cleaner.

A normal upright vacuum cleaner is constructed in which a suction brush moving along a surface to be cleaned is provided at a lower part of a cleaner body. The interior of the cleaner body is divided into a dust collecting chamber and a motor driving chamber, a dust filter is detachably installed in the dust collecting chamber, and a motor is installed in the motor driving chamber. When the motor is driven, a strong suction force is generated in the suction brush, and thus air containing dust and various dirts present on the surface to be cleaned is sucked into the cleaner body. The air sucked in this way is discharged through the dust filter installed in the dust collecting chamber of the cleaner body. At this time, various kinds of dirt contained in the air are collected in the dust filter and the suction air is discharged to the outside through the motor driving room.

However, the general upright vacuum cleaner as described above has a structure in which dust and dirt are collected by using a dust filter, and therefore, a dust filter as a consumable must be provided. In addition, when the dust filter is full of dirt, it must be replaced, at this time, there is a disadvantage that it is inconvenient and unsanitary because the user has to replace the dust filter contaminated with dust by hand.

The present invention has been made in view of the above, and provided with a cyclone dust collector which centrifugally separates the dust and dirt contained in the air sucked through the suction brush, discards the collected dirt and remounts it semi-permanently. It is an object of the present invention to provide an upright vacuum cleaner having a cyclone dust collector that can be used.

Another object of the present invention is to provide an upright type vacuum cleaner having a cyclone dust collector which is easy to use because the collected waste is easily discharged.

1 is a perspective view showing an upright type vacuum cleaner having a cyclone dust collector according to an embodiment of the present invention;

FIG. 2 is an exploded perspective view showing the configuration of a cyclone dust collector as a main part of the upright vacuum cleaner shown in FIG. 1;

3 is an assembled state cross-sectional view for explaining the operation of the cyclone dust collector shown in FIG.

4 is a cross-sectional view showing another example of a cyclone dust collecting apparatus that is a main part of the present invention;

FIG. 5 is a bottom view showing the structure of a primary cyclone for the implementation of FIG. 4. FIG.

Explanation of symbols on the main parts of the drawings

10; cleaner main body 11; dust collection chamber

20; suction brush 30; cyclone dust collector

40; cyclone cover 41; first air inlet

42; air outlet 43; air outlet

44; skirt portion 50; first cyclone barrel

60; second cyclone barrel 61; grill portion

61a; Fine pass hole 62; Second air inlet

70; lower door 71; hinge

80; non-return rod 81; support rib

The upright type vacuum cleaner according to the present invention for achieving the above object, the cyclone dust collector for detaching the dust and dirt contained in the air flowing through the suction brush in the dust collecting chamber of the main body of the cleaner is detachable Installed and configured.

The cyclone dust collecting apparatus includes a cyclone cover provided with an air inlet corresponding to the suction hose installed to connect the suction brush and the dust collecting chamber of the cleaner body, and an air outlet corresponding to the exhaust hose installed to connect the dust collecting chamber and the motor driving chamber; A first cyclone cylinder coupled to the cyclone cover and configured to collect and collect relatively large particles of dirt contained in the air by forming a vortex air stream with respect to air including dirt introduced through the air inlet; It is coupled to the cyclone cover to be located inside the first cyclone cylinder, and has a grill portion having a plurality of fine passage holes and a second air inlet for guiding the flow of air passing through the grill portion of the first cyclone cylinder A second cyclone barrel which collects the fine dust contained in the air by centrifuging the air rising reversely from the bottom to form a vortex air stream; And a lower door removably mounted to a lower opening of the first cyclone cylinder so as to discard waste collected in the first and second cyclone cylinders.

Here, the first air inlet of the cyclone cover and the second air inlet of the second cyclone cylinder are preferably arranged so that a part thereof overlaps.

According to a preferred embodiment of the present invention, the cyclone cover has an air outlet pipe extending downward from the air outlet thereof. An end portion of the air outlet pipe is formed in a lower extension type in which a skirt portion for increasing the collection efficiency of fine dust by increasing the flow velocity of air increases gradually toward the lower portion thereof. In addition, a spiral groove may be formed on the outer circumferential surface of the air outlet pipe for increasing the winsimal force.

The second cyclone cylinder is formed of a tapered structure of a lower reduction type whose diameter gradually decreases from its central portion to the lower portion thereof. As a result, the gap between the second cyclone cylinder and the first cyclone cylinder located outside thereof becomes larger toward the lower portion, whereby the flow rate is reduced, thereby preventing backflow of the waste collected in the first cyclone cylinder.

In addition, the present invention to guide the vortex air flow of the air reversely rising from the bottom of the second cyclone cylinder and to prevent the reverse flow of dust to prevent the reverse flow arranged to reach a predetermined height from the lower center of the second cyclone cylinder With a rod.

And the lower door is detachably coupled to the lower opening of the first cyclone cylinder by screwing, in which case the backflow prevention rod is integrally formed in the central portion of the lower door.

Meanwhile, the lower door may be coupled to the lower side of the first cyclone barrel by a hinge so as to be rotatable, and at this time, the lower door may be opened or closed by the locker with respect to the first cyclone cylinder. That is, by simply opening the lower door in a simple way to operate the locker it is easy to discard the waste collected inside. Here, the backflow prevention rod is preferably integrally formed by several ribs in the lower opening of the second cyclone cylinder.

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

1 is an external perspective view showing an upright type vacuum cleaner having a cyclone dust collector according to an embodiment of the present invention.

As shown in FIG. 1, an upright vacuum cleaner having a cyclone dust collector according to the present invention includes a cleaner body 10, a suction brush 20, and a cyclone dust collector 30.

The vacuum cleaner body 10 includes a dust collecting chamber 11 and a motor driving chamber (not shown), and a handle 13 is formed on the upper side of the vacuum cleaner body 10. The suction brush 20 is coupled to the lower portion of the cleaner body 10 so as to enable a rotational movement at a predetermined angle with respect to the cleaner body 10. In addition, the cyclone dust collector 30 is detachably mounted to the dust collecting chamber 11 of the cleaner body 10.

An air inlet 12 and an air outlet (not shown) are formed in the dust chamber 11, respectively. The air inlet 12 is connected to the suction brush 20 by a suction hose, and the air outlet is connected to the motor drive room by a conduit (not shown) formed inside the cleaner body 10. Air containing dust and dirt on the surface to be sucked through the suction brush 20 is introduced into the dust collecting chamber 11 through the suction hose and the air inlet 12, wherein the air is supplied to the cyclone dust collector 30. Dust and dirt are filtered out while being discharged to the outside via the motor drive room through the air outlet and the pipe of the cleaner body.

The cyclone dust collector 30 collects the dust and dirt contained in the air by centrifugal separation. Such a cyclone dust collector 30 may include a cyclone cover 40 and a first cyclone as illustrated in FIGS. 2 and 3. A cylinder 50, a second cyclone cylinder 60, and a lower door 70 are provided.

The cyclone cover 40 is formed in a disc shape, and includes an air inlet 41 and an air outlet 42. When the cyclone dust collector 30 is mounted in the dust collecting chamber 11 of the cleaner body 10, the air inlet 41 is connected to the air inlet 12 of the dust collecting chamber 11, and the air outlet 42 ) Is connected to the air outlet of the dust collecting chamber (11). Here, the air inlet 41 is formed at the edge portion of the cyclone cover 40 so that the air sucked through it flows in a diagonal direction with respect to the first cyclone barrel 50 to be described later, and the air outlet 42 is It is formed in the center of the cyclone cover 40.

The first cyclone cylinder 50 is formed in a cylindrical shape of the upper and lower portions, and is coupled to the cyclone cover 40. The first cyclone cylinder 50 forms a vortex air stream with respect to the air sucked in cooperation with the cyclone cover 40, thereby centrifuging the dust and dirt contained in the air, especially the relatively large dirt contained in the air. Collect it. Here, the vortex air flow of air proceeds from the top to the bottom of the first cyclone cylinder 50, and reverses and rises again at the bottom surface.

The second cyclone cylinder 60 is coupled to the cyclone cover 40 so as to be located inside the first cyclone cylinder 50. The second cyclone cylinder 60 includes a grill portion 61 having a plurality of fine passage holes 61a and a second air inlet 62. Air reversely rising from the bottom of the first cyclone cylinder 50 passes through the grill portion 61 of the second cyclone cylinder 60 and passes through the second air inlet 62 of the second cyclone cylinder 60. Spiral flow of air is formed in the second cyclone cylinder 60 in the second cyclone cylinder 60, and the fine dust contained in the air is separated from the air by the centrifugal force and falls. Here, the first air inlet 41 formed in the cyclone cover 40 and the second air inlet 62 formed in the second cyclone cylinder 60 are preferably arranged so that a part thereof overlaps each other. On the other hand, the vortex air flow descending from the inside of the second cyclone barrel 60 is inverted and rises from the bottom, and is discharged through the air outlet 42 of the cyclone cover 40, for guiding the discharge of such air An air outlet pipe 43 extends downward from the air outlet 42 to a predetermined length. At the end of the air outlet pipe 43, the dust and dirt collected by piggybacking in the reversely rising vortex air flow as described above are prevented from being reversed, and the centrifugal force is increased by increasing the flow velocity of the air passing through the portion. Skirt portion 44 for increasing the dust collection efficiency is formed in a lower extension type that the diameter gradually increases toward the bottom. In addition, a plurality of spiral grooves (not shown) may be formed on the outer circumferential surface of the air outlet pipe 43 to increase the centrifugal force.

In addition, the second cyclone barrel 60 is formed of a lower-shrink taper structure, the diameter of which decreases gradually from its approximately central portion to the lower portion thereof, whereby the first cyclone cylinder 50 and the second cyclone cylinder 60 are formed. As the interval of is lowered toward the bottom, the flow rate of air in this portion is gradually reduced, so that dirt collected in the first cyclone barrel 50 can be prevented from flowing back.

The lower door 70 is mounted on the lower opening of the first cyclone cylinder 60 so as to be openable and close, and thus, the lower door 70 may be opened to discard waste collected therein. The lower door 70 is mounted to be opened and closed by a screwing method with respect to the first cyclone cylinder (60). On the other hand, in the substantially central portion of the lower door 70, the backflow prevention rod 80 is formed at a predetermined height in the central portion of the second cyclone cylinder (50). Thereby, the backflow of the fine dust collected in the lower part of the 2nd cyclone cylinder 50 can be prevented more effectively. That is, since the light air coming to the center of the second cyclone cylinder 60 rises immediately by the backflow prevention rod 80 as described above, the flow of collected fine dust can be minimized, and thus, fine dust Backflow can be prevented. Moreover, even if some of the collected dirt is piggybacked in the vortex air flow, the dirt larger than the fine passage hole 61a of the grill part 61 may fall down again without finally flowing back.

4 and 5 show a cyclone dust collector according to another embodiment of the present invention.

The basic structure is the same as the cyclone dust collector according to an embodiment of the present invention described above. Therefore, the same reference numerals will be used and the description thereof will be omitted. Hereinafter, only the lower door 70, which is a main part of the present embodiment, will be described.

As shown, in the cyclone dust collector according to another embodiment of the present invention, the lower door 70 may be opened and closed by a hinge structure instead of being completely separated from the first cyclone cylinder 60.

Specifically, the lower door 70 has one side connected to one side of the first cyclone cylinder 60 as a hinge 71 so as to be able to rotate and open about the hinge 71. A locker 72 is formed at the other side of the lower door 70, and a locking protrusion 73 for selectively fixing the locker 72 is formed at the first cyclone cylinder 60 corresponding thereto. Here, as described above, when the lower door 70 is coupled to open and close rotation, when the backflow prevention rod 80 is formed in the lower door 70, as in an embodiment of the present invention, the lower door 70 by interference It cannot be opened smoothly. Therefore, in the present embodiment, the non-return bar 80 is integrally formed to be supported by several ribs 81 in the lower opening of the second cyclone barrel 50.

Hereinafter, the operation of the cyclone dust collector, which is a main part of the upright vacuum cleaner according to the present invention configured as described above, will be described with reference to FIG. 3.

Air including dust and dirt introduced through the suction brush flows diagonally into the first cyclone cylinder 50 through the first air inlet 41 of the cyclone cover 40, whereby the first cyclone cylinder 50 Inside the vortex air is formed. Due to the centrifugal force action by the vortex airflow, dust and dirt, in particular, relatively large particles (larger than the microcylinder holes in the second cyclone cylinder) are separated and collected from the air.

Subsequently, the air reaches the bottom of the first cyclone barrel 50 and rises reversely. The air rising in this way, more specifically, air containing fine dust, is the grill portion 61 of the second cyclone cylinder 60. After passing through the second air inlet 62 is introduced into the second cyclone cylinder 60 in an oblique direction, thereby forming a second vortex air flow in the second cyclone cylinder (60). Here, the fine dust contained in the air is collected by falling apart by centrifugal force action. At this time, since the flow rate of the descending air is increased by the skirt portion 44, it is possible to increase the collection efficiency of the fine dust, and the collected dust is a reverse flow prevention rod (located below the second cyclone cylinder 60) 80) can be collected stably without backflow.

The air descending along the second cyclone cylinder 60 is discharged to the outside through the air outlet pipe 43 while inverting ascending to the bottom surface thereof.

As described above, the present invention can effectively separate and collect dust and particles contained in air by centrifugation in double.

Thereafter, when a certain amount of dirt is filled in the cyclone cylinder, it is separated from the cleaner body, and then the lower door is opened to discard the collected dirt. At this time, according to the lower door opening and closing structure according to another embodiment of the present invention, the collected dirt can be more conveniently discarded.

According to the present invention as described above, the dust and dirt contained in the air by using a cyclone dust collector can be effectively collected and collected. That is, the use of the unsanitary dust filter as in the prior art can be eliminated. Therefore, since the dust filter does not need to be replaced periodically, the cleaner can be used more conveniently.

In addition, the cyclone dust collector according to the present invention has the advantage that the dust contained in the air is collected in two times by separating the dust and the dust with relatively large particles, so that cleaner cleaning is possible.

On the other hand, while the preferred embodiment of the present invention has been shown and described, the present invention is not limited to the above-described embodiment, the present invention belongs without departing from the spirit of the invention claimed in the claims below. Various modifications can be made by those skilled in the art, and such modifications are within the scope of the claims.

Claims (9)

The cleaner body is divided into a dust chamber and a motor driving chamber, the suction brush coupled to the cleaner body to move along the surface to be cleaned, and detachably installed in the dust chamber of the cleaner body to be included in the air sucked through the suction brush. In the upright vacuum cleaner having a cyclone dust collector for centrifuging the collected dust and dirt, The cyclone dust collector has a cyclone cover provided with an air inlet corresponding to the suction hose installed to connect the suction brush and the dust collecting chamber of the cleaner body, and an air outlet corresponding to the exhaust hose installed to connect the dust chamber and the motor driving chamber. ; A first cyclone cylinder coupled to the cyclone cover and configured to collect and collect relatively large particles of dirt contained in the air by forming a vortex air stream with respect to air including dirt introduced through the air inlet; It is coupled to the cyclone cover to be located inside the first cyclone cylinder, and has a grill portion having a plurality of fine passage holes and a second air inlet for guiding the flow of air passing through the grill portion of the first cyclone cylinder A second cyclone barrel which collects the fine dust contained in the air by centrifuging the air rising reversely from the bottom to form a vortex air stream; And And a lower door removably mounted to the lower opening of the first cyclone cylinder to dispose of the waste collected in the first and second cyclone cylinders. The upright vacuum cleaner according to claim 1, wherein the first air inlet formed in the cyclone cover and the second air inlet formed in the second cyclone cylinder are arranged so that a part thereof overlaps. 2. The cyclone cover according to claim 1, wherein the cyclone cover has an air outlet pipe extending downward from the air outlet thereof, and a skirt for increasing the collection efficiency of fine dust by increasing the flow rate of air at the end of the air outlet tube. Upright type vacuum cleaner, characterized in that formed in the lower expansion type that the diameter gradually increases toward the lower portion. The upright vacuum cleaner as claimed in claim 3, wherein a spiral groove is formed on an outer circumferential surface of the air outlet pipe to increase a win-sim force. 2. The method of claim 1, wherein the second cyclone cylinder has a tapered structure of a lower reduction type, the diameter of which gradually decreases from its central portion to the lower portion thereof, whereby the distance between the second cyclone cylinder and the first cyclone cylinder located outside thereof is reduced. The upright vacuum cleaner, characterized in that the flow rate is reduced by gradually increasing toward the lower portion to prevent the backflow of dirt collected in the first cyclone barrel. 2. The counter flow according to claim 1, wherein the counter flow is arranged to reach a predetermined height from the lower center of the second cyclone cylinder to guide the vortex air flow of air reversely rising from the bottom of the second cyclone cylinder and to prevent backflow of dirt. An upright vacuum cleaner comprising a prevention rod. 7. The upright vacuum cleaner according to claim 6, wherein the lower door is detachably coupled to the lower opening of the first cyclone cylinder by a screwing method, and the backflow prevention rod is integrally formed at the center of the lower door. . The cyclone cylinder of claim 6, wherein the lower door is coupled to a lower side of the first cyclone barrel by a hinge to be rotatable, and the other side of the lower door is provided with a locker that is locked to a locking protrusion formed on the first cyclone cylinder. Upright type vacuum cleaner, characterized in that it is easier to discard the waste collected in. 9. The upright vacuum cleaner according to claim 8, wherein the non-return bar is integrally formed by several ribs in the lower opening of the second cyclone cylinder.